Paradyne Computer Hardware SNMP DSU User Manual

MODEL 7610 SNMP DSU  
USER’S GUIDE  
Document No. 7610-A2-GB20-10  
November 1997  
Contents  
About This Guide  
Document Purpose and Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . vii  
Document Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii  
Product-Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii  
1
2
About the SNMP DSU  
Model 7610 SNMP DSU Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1  
SNMP Management Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2  
MIB Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2  
Supported Link-Layer Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3  
Typical SNMP DSU Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3  
User Interface Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4  
Rear Panel Interface Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4  
Using the ATI  
Accessing the ATI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1  
Connecting to the Terminal Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1  
Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2  
Screen Format Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3  
What Affects Screen Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3  
Screen Work Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4  
Navigating the Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5  
Keyboard Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5  
Screen Function Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6  
Switching Between Screen Work Areas . . . . . . . . . . . . . . . . . . . . . . . . 2-7  
Ending a Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7  
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Contents  
3
Customizing the SNMP DSU  
Entering Device and System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1  
System Fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2  
Identity Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2  
Configuring the DSU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3  
Configuration Option Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3  
Accessing and Displaying Configuration Options . . . . . . . . . . . . . . . . 3-4  
Saving Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4  
Establishing Call Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5  
Call Directories Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5  
Call Setup Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7  
4
Security  
Security Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1  
Creating a Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2  
Deleting a Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3  
ATI Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4  
Effective Access Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4  
Controlling SNMP Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6  
Assigning SNMP Community Names and Access Levels . . . . . . . . . 4-6  
Limiting SNMP Access through the IP Addresses  
of the Managers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6  
5
IP Addressing  
Selecting an IP Addressing Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1  
IP Addressing Scheme Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2  
IMC Connection – Same Subnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2  
Using Routers to Route DSU Management Data . . . . . . . . . . . . . . . . . 5-3  
Assigning IP Addresses and Subnet Masks . . . . . . . . . . . . . . . . . . . . . . . . . 5-4  
Choosing a Default Network Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4  
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Contents  
6
Monitoring the DSU  
What to Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1  
DSU LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1  
System LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2  
Network LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3  
Port LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4  
Unit Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5  
Viewing Health and Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5  
Self-Test Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7  
Network Interface Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7  
Network Performance Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8  
7
Testing  
Detecting Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1  
Tests Available . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2  
Network Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2  
CSU or External Network Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3  
DSU or Internal Network Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3  
Send V.54 Up/Down Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3  
511 Test Pattern for the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4  
Data Port Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4  
Local Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4  
511 Test Pattern for the DTE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4  
Lamp Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4  
Ending an Active Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5  
Test Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5  
Loopbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6  
Device Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7  
8
Messages and Troubleshooting  
Messages and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1  
Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1  
ASCII Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1  
ASCII Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2  
Configuring SNMP Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3  
Dialing Out SNMP Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3  
Device Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4  
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5  
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Contents  
A Configuration Option Tables  
Configuration Option Tables Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1  
System Options Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2  
Network Interface Options Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5  
Data Port Options Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9  
User Interface Options Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11  
Terminal Port Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11  
Management Port Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-13  
External Device Options for the Management Port . . . . . . . . . . . . . . . A-15  
Telnet Session Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-18  
Alarms & Traps Options Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-20  
SNMP & Communication Options Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-22  
Communication Protocol Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-22  
General SNMP Management Options . . . . . . . . . . . . . . . . . . . . . . . . . . A-24  
SNMP NMS Security Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-25  
SNMP Traps Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-27  
ASCII Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-29  
B Worksheets  
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1  
Configuration Worksheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1  
C MIB Descriptions  
MIB Description Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1  
MIB II – RFC 1213 and RFC 1573 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1  
RS-232-Like MIB – RFC 1659 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2  
Enterprise MIB Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2  
System Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3  
RS-232-Like MIB, RFC 1659 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-13  
Enterprise MIB Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-18  
D Standards Compliance for SNMP Traps  
SNMP Traps Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1  
Trap: authentificationFailure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1  
Trap: warmStart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2  
Traps: linkUp and linkDown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2  
Traps: Enterprise Specific . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-3  
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Contents  
E Cables and Pin Assignments  
Cabling Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1  
Terminal Port EIA-232 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2  
Management Port EIA-232 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2  
V.35 User Data Port Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-3  
Standard EIA-232-D Crossover Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-4  
LAN Adapter Converter and Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-5  
Modular RJ48S DDS Network Interface Cable . . . . . . . . . . . . . . . . . . . . . . E-5  
Glossary  
Index  
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About This Guide  
Document Purpose and Intended Audience  
This guide contains information needed to set up, configure, and operate the  
Model 7610 SNMP DSU and is intended for installers and operators.  
Document Summary  
Section  
Description  
Chapter 1  
About the SNMP DSU. Describes the DSU features and  
SNMP management capabilities with a typical configuration  
example.  
Chapter 2  
Chapter 3  
Using the ATI. Provides instructions for accessing the user  
interface and navigating the screens.  
Customizing the SNMP DSU. Provides procedures for  
setting up the user interface, device information, call setup,  
and DSU configuration steps.  
Chapter 4  
Chapter 5  
Chapter 6  
Chapter 7  
Chapter 8  
Security. Presents procedures for creating a login, setting  
the effective access levels, and controlling SNMP access.  
IP Addressing. Provides details regarding IP addresses with  
examples.  
Monitoring the DSU. Describes monitoring details about the  
LEDs, DSU status, and network statistics.  
Testing. Provides details about available tests and test  
setup.  
Messages and Troubleshooting. Provides information on  
ASCII alarms, SNMP traps, device messages, and  
troubleshooting.  
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About This Guide  
Section  
Description  
Appendix A  
Configuration Option Tables. Contains all configuration  
options, default settings, and possible settings.  
Appendix B  
Worksheets. Contains all the configuration options, default  
settings, and possible settings to use for planning.  
Appendix C  
Appendix D  
MIB Descriptions. Provides all MIBs supported by the DSU.  
Standards Compliance for SNMP Traps. Contains SNMP  
trap compliance details.  
Appendix E  
Cables and Pin Assignments. Contains connector and  
interface details.  
Glossary  
Index  
Defines acronyms and terms used in this document.  
Lists key terms, acronyms, concepts, and sections in  
alphabetical order.  
Product-Related Documents  
Document Number  
Document Title  
7610-A2-GN10  
Model 7610 SNMP DSU Startup Instructions  
To order additional product documentation, refer to the Warranty, Sales, and  
Service Information section on page A at the beginning of this User’s Guide.  
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About the SNMP DSU  
1
Model 7610 SNMP DSU Features  
The SNMP DSU provides an interface between the customer premises  
equipment (CPE) and a DDS network. Its features include:  
SNMP (Simple Network Management Protocol) Management. Provides  
network management via an industry-standard SNMP management system.  
In-band Management Channel (IMC). Provides remote management via  
SNMP or Telnet session capability over the DDS network.  
Async Terminal Interface (ATI). Provides a menu-driven VT100-compatible  
interface for configuring and managing the DSU locally or remotely by Telnet  
session or External Modem.  
Local Management. Provides local management via an:  
— Async terminal connection through the Terminal port  
— NMS connection through the Management port  
Remote Management. Provides remote management:  
— Out-of-band, using an external modem through the Terminal port or  
Management port  
— Via Telnet through the Management port or the In-band Management  
Channel (IMC)  
DDS Rates. Operates at 56 and 64 kbps CC (clear channel).  
LADS Operation (Local Area Data Set). Operates at 56 and 64 kbps  
full-duplex (also called a limited distance modem).  
Autorating of Line Rate. Establishes the line rate from the network receive  
signal and automatically adjusts to the detected line rate.  
Data Port Rates. Supports the same rates as the DDS or LADS operating  
rates, except when the IMC is enabled.  
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About the SNMP DSU  
Alarm Indication. Activates front panel LEDs and provides the capability of  
attaching an ASCII terminal or printer to display/print alarm messages.  
7610 SNMP DSU  
TS (105)  
TXD (103R) XD (104R) CTS (106D) TR (108)  
OK  
ALARM TEST  
DM  
OOS  
OOF  
NS  
System  
Network  
Port  
56/64K  
496-15073  
Diagnostics. Provides the capability to diagnose device and network  
problems and perform tests, including digital loopbacks, pattern tests, and  
self-test.  
Device and Test Monitoring. Provides the capability of tracking and  
evaluating the unit’s operation, including health and status, and error-rate  
monitoring.  
Two Customer-Specified Configuration Storage Areas. Allows quick  
access to alternate sets of configuration options.  
Security. Provides multiple levels of security, which prevents unauthorized  
access to the DSU.  
SNMP Management Capabilities  
The DSU supports SNMP Version 1, and has the capability of being managed by  
any industry-standard SNMP manager and accessed using SNMP protocol by  
external SNMP managers.  
MIB Support  
The following MIBs are supported:  
MIB II (RFC 1213 and RFC 1573) – Defines the general objects for use with  
a network management protocol in TCP/IP internets and provides general  
information about the DSU. MIB II is backward-compatible with MIB I.  
RS-232-Like MIB (RFC 1659) – Defines objects for managing RS-232-type  
interfaces (e.g., V.35, RS-422, RS-423, etc.) and supports synchronous data  
ports and management communication ports on the DSU.  
Enterprise MIB – Supports configuration, status, statistics, and tests on the  
DDS network interface.  
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About the SNMP DSU  
Supported Link-Layer Protocols  
The DSU supports two link-layer protocols for connection to an external SNMP  
manager or network device:  
Point-to-Point Protocol (PPP)  
Serial Line Internet Protocol (SLIP)  
Typical SNMP DSU Configurations  
The following illustration shows a typical LAN/WAN interconnection application for  
the DSU. The routers connected to the DSU at each location provide the LAN  
interconnection.  
Digital  
DDS  
DDS  
Data  
Router  
Router  
Network  
SNMP  
DSU  
SNMP  
DSU  
497-15274  
The SNMP DSU can also be used in a frame relay network.  
Frame  
DDS  
DDS  
Relay  
Router  
Router  
Network  
SNMP  
DSU  
SNMP  
DSU  
497-15275  
Two SNMP DSUs can be connected back-to-back to act as Local Area Data Sets.  
Table 3 in the Model 7610 DSU Startup Instructions shows the maximum  
distances for LADS applications.  
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About the SNMP DSU  
User Interface Types  
There are three types of user interfaces for the SNMP DSU:  
H
H
Menu-driven async terminal interface screens (see Using the ATI, Chapter 2).  
SNMP NMS Access – Refer to the SNMP DSU Features section. Provides  
the capability to access the DSU via an SNMP management system  
connected to the Management port or remotely through the in-band  
management channel (IMC) connection. Refer to IP Addressing, Chapter 5.  
H
Front panel LED status indicators. Refer to Monitoring the DSU, Chapter 6.  
Rear Panel Interface Connections  
The following illustration shows the physical interfaces of the DSU. Information  
about the installation of the DSU is contained in the Model 7610 DSU Startup  
Instructions.  
Modem  
DTE  
or  
Terminal  
NETWORK  
TERMINAL MANAGEMENT  
POWER  
D
T
E
Power  
Router,  
LAN Adapter,  
or Modem  
or  
or  
Network  
NMS Host  
ASCII Terminal  
or Printer  
496-15085  
November 1997  
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1-4  
Using the ATI  
2
Accessing the ATI  
You can communicate with the Asynchronous Terminal Interface (ATI) using one  
of the following methods:  
Direct connection through the Terminal port.  
Dialing in through an external modem to the Terminal port.  
Telnet session through the Management port (locally or via an external  
modem).  
Telnet session through the In-band Management Channel (IMC).  
NOTE:  
Only one asynchronous user interface session can be active at a time, and  
another user’s session cannot be forced to end. To automatically log out a  
user due to inactivity, enable the Inactivity Timeout option (see Terminal Port  
Options, Table A-4).  
The user interface is blank until activated. Press Return to activate the user  
interface. Security can limit ATI access several ways. To setup security or a login  
ID, refer to Security, Chapter 4.  
Connecting to the Terminal Port  
Verify that the settings of the device that you connect to the Terminal port match  
these factory-loaded option default settings:  
Data rate set to 9.6 kbps.  
Character length set to 8.  
Parity set to None.  
Stop Bits set to 1.  
To change the Terminal Port settings, refer to Terminal Port Options, Table A-4.  
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Using the ATI  
Main Menu  
Entry to all of the DSU’s tasks begins at the Main Menu screen, which has four  
menus or branches.  
Select . . .  
To . . .  
Status  
View diagnostic tests, network status of interfaces, statistics, LEDs, and  
DSU identity information.  
Test  
Select and cancel tests for the DSU’s interfaces.  
Configuration Display and edit the configuration options.  
Control  
Control the user interface for call setup, device naming, and login  
administration, or to initiate a power-up reset of the DSU.  
MAIN MENU  
Status  
Test  
Configuration  
Control  
Load  
Save  
Test  
Configuration  
Status  
Control  
Edit/Display  
• System  
• Network Tests  
• Data Port Tests  
• Lamp Test  
• Abort All Tests  
• System and Test Status  
• Network Interface Status  
• Performance Statistics  
• Display LEDs  
• Call Setup  
• Call Directories  
• Device Name  
• Administer Logins  
• Reset Device  
• Network  
• Data Port  
• User Interface  
• Alarms & Traps  
• Identity  
• SNMP &  
Communication  
User Interface  
SNMP & Communication  
Terminal Port  
• Communication Protocol  
• General SNMP Management  
• SNMP NMS Security  
• SNMP Traps  
• Management Port  
• External Device  
Telnet Session  
496-14999-01  
November 1997  
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Using the ATI  
Screen Format Types  
Three types of screen formats are available on the ATI.  
Use the screen format . . . To . . .  
Menu selection  
Input  
Display a list of available functions for user selection.  
Add or change information on a screen.  
Input or edit fields that have an Underline in the field value  
or selection. See Screen Work Areas.  
Display  
Display configuration information and results from  
performance and DSU-specific tests.  
Display-only fields that have no underline in the field value.  
What Affects Screen Displays  
What appears on the screens depends on the:  
Current configuration – How your DSU is currently configured.  
Effective security access level – An access level that is typically set by the  
system administrator for each interface and each user.  
Data selection criteria – What you entered in previous screens.  
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November 1997  
2-3  
 
Using the ATI  
Screen Work Areas  
There are two user work areas:  
H
Screen area – Provides the menu path, access level, menus, and input fields  
above the dotted line. Refer to Entering Device and System Information in  
Chapter 3.  
The menu path appears as the first line on the screen. In this manual, the  
menu path is presented as a menu selection sequence with the names of the  
screens:  
Main Menu Configuration Load Configuration From Edit →  
User Interface Terminal Port  
H
Screen function key area – Provides functions available below the dotted  
line based upon screen selection and access level. Refer to the Switching  
Between Screen Work Areas section.  
Menu Path  
main/configuration/edit/user/term  
Device Name:  
Model: 7610  
TERMINAL PORT OPTIONS  
Data Rate (Kbps):  
Character Length:  
Parity:  
9.6  
8
None  
1
Stop Bits:  
Monitor DTR:  
Enable  
Input Fields  
Login Required:  
Enable  
Level 1  
Enable  
5
Port Access Level:  
Inactivity Timeout:  
Disconnect Time(minutes):  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Screen  
Function  
Keys  
Ctrl-a to access these functions, ESC for previous menu  
Save  
MainMenu  
Exit  
Select: 2.4, 4.8, 9.6, 14.4, 19.2, 28.8, 38.4  
No Signal  
System  
Messages  
Field Value  
Choices  
November 1997  
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2-4  
Using the ATI  
Navigating the Screens  
You can navigate the screens by:  
Using keyboard keys  
Using screen function keys  
Switching between the two screen work areas  
Keyboard Keys  
Use the following keyboard keys to navigate within the screen.  
To . . .  
Press . . .  
Move cursor between the screen area and the screen function  
keys area below the dotted line at the bottom of the screen  
Ctrl-a  
Return to the previous screen  
Esc  
Tab  
Move cursor to the next field on the screen  
Accept entry or display valid options on the last row of the screen Return (Enter)  
when pressed before entering data or after entering invalid data  
Move cursor one position to the left  
Ctrl-k  
Select the next valid value for the field  
Spacebar  
Delete character that the cursor is on  
Delete (Del)  
Up Arrow or Ctrl-u  
Move cursor up one field within a column on the same screen  
Move cursor down one field within a column on the same screen Down Arrow or Ctrl-d  
Move cursor one character to the right if in edit mode  
Move cursor one character to the left if in edit mode  
Right Arrow or Ctrl-f  
Left Arrow or Ctrl-b  
Ctrl-l  
Redraw the screen display, clearing information typed in but not  
yet entered  
To make a menu or field selection:  
Procedure  
1. Press the tab key or the right arrow key to position the cursor on a menu or  
field selection. Each selection is highlighted as you press the key to move the  
cursor from position to position.  
2. Press Return. The selected menu or screen appears.  
3. Continue Steps 1 and 2 until you reach the screen you want.  
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November 1997  
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Using the ATI  
The current setting or value appears to the right of the field name. You can enter  
information into a selected field by:  
Typing in the first letter(s) of a field value or command, using the DSU’s  
character matching feature.  
Switching from the screen area to the screen function area below the dotted  
line and selecting or entering the designated screen function key.  
If a field is blank and the Field Values screen area displays valid selections, press  
the spacebar and the first valid value for the field will appear. Continue pressing  
the spacebar to scroll through other valid values.  
Screen Function Keys  
All screen function keys located below the dotted line operate the same way  
(upper- or lowercase) throughout the screens.  
For the screen  
Select . . . And press Return to . . .  
function . . .  
MainMenu  
Exit  
M or m  
E or e  
N or n  
O or o  
L or l  
Return to the Main Menu screen.  
Terminate the async terminal session.  
Enter new data.  
New  
Modify  
Delete  
Save  
Modify existing data.  
Delete data.  
S or s  
R or r  
C or c  
Save information.  
Refresh  
Clear  
Update screen with current information.  
Clear status messages for one-time events on the System  
and Test Status screen.  
ClrStats  
C or c  
Clear statistics and refresh the Network Performance  
Statistics screen.  
PgUp  
U or u  
D or d  
R or r  
Display the previous page.  
PgDn  
Display the next page.  
ResetMon  
Reset an active Monitor 511 test counter to zero.  
November 1997  
7610-A2-GB20-10  
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Using the ATI  
Switching Between Screen Work Areas  
Selecting Ctrl-a allows you to switch between the two screen work areas to  
perform all screen functions. To access the screen function area below the dotted  
line:  
Procedure  
1. Press Ctrl-a to switch from the screen area to the screen function key area  
below the dotted line. The available selections for the first input field appear  
on the last line as shown below.  
2. Select either the function’s designated (underlined) character or press the tab  
key until you reach the desired function key.  
Example:  
To leave the current screen, enter e or E (Exit).  
3. Press Return. The function is performed.  
4. To return to the screen area above the dotted line, press Ctrl-a again.  
main/configuration/edit/user/mgmt  
Device Name:  
Model: 7610  
MANAGEMENT PORT OPTIONS  
Port Use:  
Port Type:  
Clock Source:  
Data Rate(Kbps):  
Net Link  
Synchronous  
Internal  
9.6  
Routing Information Protocol:None  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions, ESC for previous menu  
MainMenu  
Exit  
Save  
Select: None, Net Link, Alarms.  
Ending a Session  
Use the Exit function key from any screen to terminate the session.  
Procedure  
1. Press Ctrl-a to go to the screen function key area below the dotted line.  
2. Save changes if you have altered your configuration.  
3. Select Exit and press Return. The Main Menu appears.  
7610-A2-GB20-10  
November 1997  
2-7  
Customizing the SNMP DSU  
3
Entering Device and System Information  
Use the Device Name screen to input DSU device and SNMP system entries. To  
access the Device Name screen, follow this menu selection sequence:  
Main Menu Control Device Name  
main/control/device name  
Device Name:  
Model: 7610  
DEVICE NAME  
Device Name:  
System Name:  
NE815378  
lllQJ98-001  
Clear  
Clear  
Clear  
Clear  
System Location: Bldg. A412, 2nd Floor, Left cabinet  
System Contact: Joe Smith 800-555-5555 pager 888-555-5555  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions, ESC for previous menu  
Save  
MainMenu  
Exit  
Any printable ASCII characters are valid entries for all the Device Name screen  
inputs. Refer to the ASCII Characters section in Appendix A. The Device Name  
field is alphanumeric and provides for an input of 20 characters. The Device  
Name entry appears on all ATI screens. The input on this screen is displayed on  
the Identity screen. Refer to the Identity Information section.  
7610-A2-GB20-10  
November 1997  
3-1  
 
Customizing the SNMP DSU  
System Fields  
The three System entry fields are alphanumeric and provide 127 characters for  
each field. The System entries appear on the Identity display as shown in the  
next section. The SNMP System entry fields are:  
System Name: The general SNMP system name  
System Location: The physical location of the SNMP managed device  
System Contact: Identification information, such as contact name, phone  
number, or mailing address  
Press Ctrl-a to switch to the screen function key area below the dotted line.  
Select Save and press Return. When Save is complete, Command Complete  
appears at the bottom of the screen.  
Identity Information  
The Identity screen provides identification information about the DSU. To view  
information on the three System entries beyond the 40 characters on the screen,  
place the cursor on the first or last character and press the left or right arrow.  
To access the Identity screen, follow this menu selection sequence:  
Main Menu Status Identity  
main/status/identity  
Device Name: NE815378  
Model: 7610  
IDENTITY  
System Name:  
lllQJ98-001  
System Location: Bldg. A412, 2nd Floor, Left cabinet  
System Contact: Joe Smith 800-555-5555 pager 888-555-5555  
Serial Number:  
1234567  
Model Number:  
Software Revision:  
Hardware Revision:  
7610-A1-201  
01.00.00  
2048-80A  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions, ESC for previous menu  
MainMenu  
Exit  
November 1997  
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3-2  
 
Customizing the SNMP DSU  
Configuring the DSU  
Configuration option settings determine how the DSU operates. Use the DSU’s  
Configuration branch to display or change configuration option settings.  
Configuration Option Areas  
The DSU is shipped with factory settings in the Default Factory configuration  
option area. You can find default information by:  
Referring to Configuration Option Tables, Appendix A, or Worksheets,  
Appendix B.  
Accessing the Configuration branch of the DSU menu.  
The DSU offers four sets of configuration option settings located in the following  
areas. The first three sets match the Default Factory Configuration options set  
until modified and saved by the user.  
If the factory default settings do not support your network’s configuration,  
customize the configuration options for your application.  
Configuration Option Area Configuration Option Set  
Current Configuration  
The DSU’s active set of configuration options.  
Use to set up and store a set for future use.  
Use to set up and store a second set for future use.  
Customer Configuration 1  
Customer Configuration 2  
Default Factory Configuration A read-only configuration area containing the factory  
default configuration options.  
7610-A2-GB20-10  
November 1997  
3-3  
 
Customizing the SNMP DSU  
Accessing and Displaying Configuration Options  
To display the configuration options, you must first copy one configuration option  
set into the edit area.  
Procedure  
1. To load a configuration option set into the configuration edit area, follow this  
menu selection sequence:  
Main Menu Configuration Load Configuration From  
2. Select one of the four configuration option areas listed. Press Return. The  
selected configuration option set is loaded and the Configuration Edit/Display  
menu screen appears.  
No configuration edits are allowed when the effective access level is 2 or 3.  
Configuration is read-only and allows viewing only of configuration option  
settings. If the effective access level is not an access level of 1:  
— The last line of the Load Configuration From screen reads:  
Access Level is n, Configuration is read-only  
— The Save prompt will not appear on any screens.  
Refer to Security, Chapter 4.  
Saving Configuration Options  
When changes are made to the configuration options, the changes must be  
saved to take effect. The Save key and Save Configuration To screen appear  
when the user has an effective access level of 1. All other effective access levels  
have read-only permission.  
To save configuration options changes:  
Procedure  
1. Press Ctrl-a to switch to the screen function key area below the dotted line.  
2. Select Save and press Return. The Save Configuration To screen appears.  
3. Select one of the three configuration option areas on the screen and press  
Return. When Save is complete, Command Complete appears in the  
message area at the bottom of the screen.  
NOTE:  
When Exit is selected before Save, a Save Configuration screen appears  
requiring a Yes or No response.  
If you select . . .  
Then . . .  
Yes  
No  
The Save Configuration To screen appears.  
The Main Menu appears and changes are not saved.  
November 1997  
7610-A2-GB20-10  
3-4  
 
Customizing the SNMP DSU  
Establishing Call Setup  
From the Control menu, Call Setup is available for the Management port when  
connected to an external device, such as a modem or an X.25 PAD. Before  
completing the Call Setup screen entries, the phone numbers need to be entered  
on the Call Directories screen.  
Call Directories Screen  
Use the Call Directories screen to enter or change the phone numbers used to:  
Send out an ASCII alarm message to an ASCII terminal or printer.  
Send out an SNMP trap message.  
Connect to an NMS for dial-in management.  
To access the Call Directories screen, follow this menu selection sequence:  
Main Menu Control Call Directories  
main/control/directories  
Device Name:  
Model: 7610  
CALL DIRECTORIES  
Primary Directory:  
Phone Number: xxxxxxx  
Alternate Directory:  
Phone Number: xxxxxxx  
Clear  
Clear  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions, ESC for previous menu  
Save  
MainMenu  
Exit  
7610-A2-GB20-10  
November 1997  
3-5  
 
Customizing the SNMP DSU  
The Phone Number fields allow 40 characters. For valid Call Directory entries,  
refer to Table 3-1.  
After entering or changing a phone number, press Ctrl-a to go to the function key  
area below the dotted line. Select Save and press Return.  
Table 3-1. Call Directory Phone Number Entries  
Characters Use  
B
Blind dialing; do not wait for dial tone  
Pulse dialing unless preceded by a B  
Tone dialing unless preceded by a B  
Wait for dial tone before dialing  
P
T
W
, (comma)  
Two-second pause; do not use in dial string  
< > (space) Readability; character ignored during automatic dial-out  
– (hyphen)  
Readability; character ignored during automatic dial-out  
Refer to Appendix A  
ASCII  
Characters  
November 1997  
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Customizing the SNMP DSU  
Call Setup Screen  
Use the Call Setup screen to:  
Initiate or disconnect an active call with an external device. External Device  
Commands option must be set to AT or Other (not to Disable). Refer to  
External Device Options, Table A-6.  
Display the phone number entered on the Call Directories screen.  
To access the Call Setup screen, follow this menu selection sequence:  
Main Menu Control Call Setup  
main/control/setup  
Device Name:  
Model: 7610  
CALL SETUP  
Directory: Primary  
Phone Number: xxxxxxx  
Dial  
Disconnect  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions, ESC for previous menu  
MainMenu  
Exit  
Select: Primary, Alternate  
After completing call setup, the Management port can be used to send out ASCII  
alarms and SNMP traps. The Alarm & Trap Dial-Out option must be enabled.  
Refer to Alarms & Traps Options, Table A-8.  
7610-A2-GB20-10  
November 1997  
3-7  
 
Security  
4
Security Overview  
The DSU provides several methods of security by limiting user access to the ATI  
through option settings. Refer to the ATI Access section.  
Enable the Login Required option to require a Login ID for the:  
Terminal Port  
Telnet Session via the IP interfaces (the Management port or the IMC)  
Limit the access:  
— Port Access Level option of 1, 2, or 3 for the Terminal port  
— Session Access Level option of 1, 2 or 3 for the Telnet Session  
Disable the access:  
Telnet Session option  
— Management Port Use option  
— In-Band Management Channel Rate (bps) option for the IMC  
— Dial-In Access option for an External Device  
Refer to Effective Access Levels, Table 4-1.  
SNMP security is handled through Community Names with access levels and  
IP address validation. Refer to the Controlling SNMP Access section.  
7610-A2-GB20-10  
November 1997  
4-1  
Security  
Creating a Login  
Logins apply to Terminal port and Telnet access to the ATI. Six login ID/password  
combinations are available. Each Login ID and Password must be unique and  
include an access level.  
For additional information regarding the ATI access using the Login Required  
option, refer to the ATI Access section.  
Procedure  
1. To create a login record, follow this menu selection sequence:  
Main Menu Control Administer Logins  
2. Press Ctrl-a to switch to the screen function key area below the dotted line.  
3. Select New and press Return.  
4. Create the login by entering the following fields. For valid entries in the first  
two fields, refer to the ASCII Characters section of Appendix A.  
On the Administer  
Logins screen, for the . . .  
Enter . . .  
Login ID  
1 to 10 ASCII printable characters  
1 to 10 ASCII printable characters  
Level 1, Level 2, or Level 3  
Password  
Access Level  
NOTE:  
Assign at least one Level 1 Access Level. Full access is necessary to  
make configuration option changes and administer logins. If there is no  
effective access level 1, refer to the Device Reset section of Chapter 7.  
5. Press Ctrl-a to switch to the screen function key area below the dotted line.  
Select Save and press Return.  
6. When Save is complete, Command Complete appears at the bottom of the  
screen. The cursor is repositioned at the Login ID field, ready for another  
entry.  
November 1997  
7610-A2-GB20-10  
4-2  
 
Security  
Deleting a Login  
Procedure  
1. To delete a login record, follow this menu selection sequence:  
Main Menu Control Administer Logins  
2. Press Ctrl-a to switch to the screen function key area below the dotted line.  
3. Select PgUp or PgDn and press Return to page through login pages/records  
until you find the one to be deleted.  
4. Once the correct record is displayed, select Delete and press Return.  
5. To complete the delete action, select Save and press Return.  
When the deletion is complete, Command Complete appears at the bottom of  
the screen. The number of login pages/records reflects one less record, and  
the record following the deleted record appears.  
7610-A2-GB20-10  
November 1997  
4-3  
 
Security  
ATI Access  
Access to the ATI is available through either the Terminal port or a Telnet session.  
Access to the ATI through the Terminal port can be limited. Refer to Terminal Port  
Options, Table A-4, to:  
Enable Login Required.  
Assign a Port Access Level of 1, 2, or 3.  
The ATI can be accessed remotely through a Telnet Session via either the  
Management port or the IMC. The DSU provides several methods for limiting  
access to the ATI through a Telnet session.  
Refer to Telnet Session Options, Table A-7, to:  
— Enable Login Required.  
— Assign a Telnet Session Access Level of 1, 2, or 3.  
— Disable Telnet access completely.  
To prevent the Management port and IMC from supporting a Telnet session:  
— Set the Port Use option to None or Alarms. Refer to Management Port  
Options, Table A-5.  
— Disable the IMC using the In-Band Management Channel Rate (bps)  
option in Table A-2.  
Effective Access Level  
The ATI effective access level is the more restrictive between the Port/Session  
access level and the Access level associated with the Login ID. For example, if a  
login ID is created with an Access Level 1 and the Terminal Port is set for a Port  
Access Level of 2, the effective access level to the ATI is 2.  
Table 4-1. Effective Access Levels  
Effective  
Effective  
Effective  
ATI Access to Menu Functions  
Access Level 1 Access Level 2 Access Level 3  
Status  
Read-Only  
Full Access  
Full Access  
Full Access  
Read-Only  
Full Access  
Read-Only  
No Access  
Read-Only  
No Access  
Read-Only  
No Access  
Test  
Configuration  
Control  
November 1997  
7610-A2-GB20-10  
4-4  
 
Security  
When user access to the ATI is attempted through the Terminal port or a Telnet  
session, the ATI response is based on the Login Required option and the  
availability of the ATI.  
Table 4-2. ATI Access Conditions  
If access to the ATI  
is through the . . .  
Then . . .  
What to do now?  
Terminal port with  
Security disabled with appears.  
The Main Menu screen  
Select a menu option to begin your  
session.  
the Login Required  
option set to Disable.  
(See Table A-4)  
Terminal port with  
Security enabled with  
the Login Required  
option set to Enable.  
(See Table A-4)  
You are prompted for a  
login ID and password.  
If Invalid Password appears,  
re-enter the password. After three  
tries with an invalid password,  
contact the system administrator.  
The Main Menu screen  
appears if the login ID is  
not configured yet.  
Select a menu option to begin your  
session.  
Terminal port and the  
ATI is already in use  
with a Telnet session  
User Interface Already  
In Use message appears available, the message User  
with the active user’s IP  
address and Login ID.  
Try again later. When the ATI is  
Interface Idle appears.  
Telnet session and the Connection Refused  
Try again later.  
ATI is currently in use  
message appears. The  
DSU allows only one  
connection at a time.  
7610-A2-GB20-10  
November 1997  
4-5  
 
Security  
Controlling SNMP Access  
There are three methods for limiting SNMP access.  
Disable the SNMP management option.  
Assign SNMP community names and access levels. The DSU supports  
SNMP Version 1, which provides limited security through the use of  
community names.  
Limiting SNMP access through validation of the IP address of each allowed  
SNMP manager.  
Assigning SNMP Community Names and Access Levels  
The DSU can be managed by an SNMP manager supporting the SNMP protocol.  
The community name must be supplied by an external SNMP manager accessing  
an object in the MIB.  
To define SNMP community names, follow this menu selection sequence:  
Main Menu Configuration Load Configuration From Edit →  
SNMP & Communication General SNMP Management  
Refer to General SNMP Management Options, Table A-10, to:  
Enable SNMP Management.  
Assign the SNMP community names of the SNMP Managers that are allowed  
to access the DSU’s Management Information Base (MIB).  
Specify read or read-write access for each SNMP community name.  
Limiting SNMP Access through the IP Addresses of the Managers  
The DSU provides an additional level of security through validation of the  
IP addresses.  
The SNMP Management option must be enabled. To control SNMP access with  
IP addresses, follow this menu selection sequence:  
Main Menu Configuration Load Configuration From Edit →  
SNMP & Communication SNMP NMS Security Options  
Refer to SNMP NMS Security Options, Table A-11. The SNMP access can be  
limited by:  
Enabling NMS IP address validation to perform validation checks on the  
IP address of an SNMP management system attempting to access the DSU.  
Specifying read or read-write access for each NMS authorized to access the  
unit.  
November 1997  
7610-A2-GB20-10  
4-6  
 
IP Addressing  
5
Selecting an IP Addressing Scheme  
You can select from many IP addressing schemes to provide SNMP NMS  
connectivity. Review the following information in preparation for selecting an  
IP addressing scheme.  
Assign IP addresses to:  
— The Management port  
— The IMC  
Refer to the IP Addressing Scheme Examples section.  
When the Routing Information Protocol (RIP) option is set to Proprietary,  
IP routing information is automatically passed between interconnected DSUs  
from the network side. Refer to Management Port Options, Table A-5.  
However, verify that a route to the subnet(s) is set in the NMS’s or local  
router’s routing table. This equipment will not automatically receive routing  
information due to the proprietary protocol.  
The gateway to subnet(s) is through the DSU connected to:  
— The LAN using a LAN adapter, or  
— A router, terminal server, or NMS via PPP or SLIP link-layer protocols  
Each DSU’s routing table supports a maximum of 20 routes, even though a  
single route is all that is needed to reach every device on a subnet.  
Set a default route only for devices directly connected to the DSU’s  
Management port.  
Any legal host address is allowed for a given subnet; the address choice  
within the subnet is completely arbitrary.  
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November 1997  
5-1  
IP Addressing  
IP Addressing Scheme Examples  
Management of IP addressing is based upon individual IP addresses assigned to  
each interface. The IP interfaces for the unit are the:  
Management port: Set the Port Use option to Net Link; see Management Port  
Options, Table A-5.  
IMC: Set the In-Band Management Channel Rate (bps) to 1600, 4000, or  
8000 bps; see Network Interface Options, Table A-2.  
NOTE:  
For IP addressing, involve your Information Systems (IS) department since  
the department decides on the IP addressing scheme used for your  
organization.  
The following illustrations and examples apply to IP management traffic only.  
The subnet mask shown for these examples is 255.255.255.000.  
IMC Connection – Same Subnet  
In this example, DSU A is connected to:  
The NMS, at the central site, via a LAN adapter  
A remote unit, DSU B, through the proprietary IMC  
NOTE:  
Interconnected DSUs will automatically pass routing information between  
each other using a proprietary protocol. However, a static route to  
subnet 135.18.2.0 must be set in the routing table of the NMS Host.  
Remote  
Site  
NMS Host  
135.18.40.1  
Ethernet  
DSU B  
IMC  
Network  
Subnet 135.18.40.0  
LAN  
Adapter  
IMC Interface  
135.18.2.2  
Central  
Site  
Management Port  
135.18.40.3  
Subnet 135.18.2.0  
IMC Interface  
135.18.2.1  
DSU A  
496-15087  
Path of Management Data  
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IP Addressing  
Using Routers to Route DSU Management Data  
In this example, the DSUs:  
Receive their management data through the Management port connection to  
the AUX port of the router.  
Do not route the data among themselves. Routers route management data  
for the connected DSUs using the management data path between the  
routers.  
The illustration shows each DSU with its own subnet. This subnet is independent  
of the subnet on the LAN, which is supported by the local router. This enables the  
router to distinguish the data destined for the DSU from the data for the LAN.  
Subnet 135.18.5.0  
Subnet 135.18.1.0  
NMS  
Host  
Management  
Port  
135.18.5.2  
135.18.1.2  
135.18.1.1  
DDS  
Network  
DTE  
Port  
Router  
AUX Port  
AUX Port  
135.18.4.1  
135.18.5.1  
DTE  
Port  
Router  
To LAN  
Subnet 135.18.2.0  
135.18.2.1  
Management  
Port  
135.18.4.2  
Subnet 135.18.4.0  
Path of Management Data  
496-15086  
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5-3  
 
IP Addressing  
Assigning IP Addresses and Subnet Masks  
Once you select an IP scheme, assign an address(es) to the DSU.  
If using . . .  
Then . . .  
The Management port as a management  
interface  
Assign the Management port IP address  
and subnet mask. Refer to Communication  
Protocol Options, Table A-9.  
An external modem connected to the  
Management port, and you want to  
configure an alternate IP address and  
Enter the alternate Management port IP  
address and subnet mask. Refer to  
Communication Protocol Options,  
subnet mask for dialing out traps using the Table A-9.  
alternate alarm directory  
The IMC  
Assign the IP address and subnet mask.  
Refer to Network Interface Options,  
Table A-2.  
The SNMP NMS Security Options screen provides options to perform security  
checking on the IP address of the SNMP management system attempting to  
communicate to the DSU. Refer to SNMP NMS Security Options, Table A-11.  
Choosing a Default Network Destination  
You can route an SNMP or Telnet session to a default network destination. To  
configure a Default Network Destination, follow this menu selection sequence:  
Main Menu Configuration Load Configuration From Edit →  
SNMP & Communication Communication Protocol  
Refer to Communication Protocol Options, Table A-9.  
November 1997  
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5-4  
 
Monitoring the DSU  
6
What to Monitor  
This chapter presents information on how to access and monitor DSU status and  
performance statistics on the DDS network. You can monitor DSU operations by  
viewing:  
LEDs on the ATI Status screen or the DSU’s front panel  
Unit Status screen on the ATI  
Highest priority Health and Status message displays on the right on the last  
line of all screens.  
Network Interface Status screen on the ATI  
Network Performance Statistics screen on the ATI  
NMS via SNMP MIB objects  
Refer to MIB Descriptions, Appendix C, for the SNMP MIBs supported by the  
DSU.  
DSU LEDs  
The DSU LEDs can be viewed on the Display LEDs Status screen. This ATI  
status screen is available locally and remotely.  
The 12 LEDs are organized in three groups:  
System LEDs display the status of the unit  
Network LEDs provide the status of the network interface  
Port LEDs display the activity on the user data (DTE) port  
7610-A2-GB20-10  
November 1997  
6-1  
 
Monitoring the DSU  
To view the LED status screen, follow this menu selection sequence:  
Main Menu Status Display LEDs  
main/status/leds  
Device Name:  
Model: 7610  
DISPLAY LEDS  
SYSTEM  
ALARM TEST  
NETWORK  
DTE  
OK  
DM OOS OOF NS  
TXD  
|
RXD RTS CTS DTR  
|
blinking  
blinking  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
ESC for previous menu MainMenu Exit  
Refresh  
When viewed via the ATI, the status display screen is updated approximately  
every 5 seconds. Use Refresh to obtain a current status of all LEDs.  
System LEDs  
OK:  
ON – DSU is operational.  
OFF – DSU is performing a power-up self-test, has detected a system  
failure, or there is no power.  
ALARM:  
ON – DSU has detected an alarm condition locally or from  
the network. Refer to the Troubleshooting section in  
Chapter 8.  
TEST:  
ON – Test in progress. Test can be initiated locally, remotely,  
or from the network. Includes power-up self-test.  
November 1997  
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Monitoring the DSU  
Network LEDs  
DM – Data Mode:  
ON – DSU (DDS network interface) is sending or  
receiving data, or is in DMI condition  
(all 1’s being received).  
OFF – DDS network interface is receiving CMI codes.  
OOS – Out of Service:  
ON – The network has notified the DSU that  
the remote unit is out of service.  
Refer to Health and Status Messages,  
Table 6-1.  
OOF – Out of Frame:  
ON – DSU is detecting an out of frame  
condition. Refer to Health and Status  
Messages, Table 6-1.  
NS – No Signal:  
ON – DDS network interface detects  
no signal. Refer to Health and  
Status Messages, Table 6-1.  
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6-3  
 
Monitoring the DSU  
Port LEDs  
TXD – Transmitted Data:  
ON  
OFF  
– Receiving all 0s from the DTE.  
– Receiving all 1s from the DTE.  
Blinking – User data is being transferred.  
RXD – Received Data:  
ON  
OFF  
– Sending all 0s to the DTE.  
– Sending all 1s to the DTE.  
Blinking – User data is being transferred.  
RTS – Request to Send:  
ON – DTE is activating a control signal to  
indicate readiness to transmit data.  
CTS – Clear to Send:  
ON – DSU is activating a control signal to  
indicate to the DTE that it can start  
sending data.  
DTR – Data Terminal Ready:  
ON – DTE is activating a control signal to  
indicate readiness for operation.  
November 1997  
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6-4  
 
Monitoring the DSU  
Unit Status  
Status is a branch of the ATI main menu. From Status, the System and Test  
Status screen is available and has three sections:  
Health and Status – Displays messages in priority order (highest to lowest).  
Refer to Health and Status Messages, Table 6-1.  
Self-Test Results – Results of the Diagnostic test run on the device itself.  
Refer to Self-Test Results Messages, Table 6-2.  
Test Status – Currently active tests. Refer to Test Status Messages,  
Table 7-1.  
Viewing Health and Status  
To view Health and Status information, follow this menu selection sequence:  
Main Menu Status System and Test Status  
The following messages appear in the first column of the System and Test Status  
screen. The highest priority Health and Status message also appears on all ATI  
screens on the bottom right. The messages are listed from high to low priority in  
Table 6-1.  
Table 6-1. Health and Status Messages (1 of 2)  
Message  
What Message Indicates  
What To Do  
Cross Pair  
Detection  
The DDS Receive (RX) and  
Transmit (TX) pairs are  
crossed on the network  
interface. Alarm LED is on.  
Reverse the RX and TX pair at the  
punchdown block or other  
termination point.  
No Signal  
hhh:mm:ss  
No signal is being received.  
Local DSU network problem.  
The Alarm and NS LEDs are  
on and Network Performance  
Statistics are active.  
1. Verify that the network cable is  
securely attached at both ends.  
1
2. Contact network provider.  
Out of Service  
hhh:mm:ss  
DSU is receiving out of  
service code from the  
network for the remote unit.  
The Alarm and OOS LEDs  
are on and Network  
Performance Statistics are  
active.  
1. Verify that the remote site is in  
service.  
1
2. Contact network provider.  
1
hhh:mm:ss indicates the amount of time the condition has existed in hours, minutes,  
and seconds. When the maximum time has been exceeded, 255:59:59+ appears.  
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November 1997  
6-5  
Monitoring the DSU  
Table 6-1. Health and Status Messages (2 of 2)  
Message  
What Message Indicates  
What To Do  
Out of Frame  
hhh:mm:ss  
DSU is detecting an out of  
frame condition, associated  
with:  
1. Verify that the line rate matches  
the configured rate.  
1
2. Contact network provider.  
Receiving out of frame  
code from the network.  
DSU detecting out of frame  
errors with 64 kbps CC  
data rate.  
DSU unable to synchronize  
local receiver circuit with  
line signal.  
Excessive BPVs  
hhh:mm:ss  
Data rates do not match or  
network trouble causing  
bipolar violations. Alarm LED  
is on and Network  
1. Verify that the network cable is  
securely attached at both ends.  
1
2. Contact network provider if  
problem persists.  
Performance Statistics are  
active.  
In-Band Fram Err The IMC communication  
1. Verify that the remote unit has  
IMC set at the same rate.  
1
hhh:mm:ss  
between the local and remote  
DSU is not working.  
2. Contact network provider if  
problem persists.  
User Data Port  
DTR Off  
The DTE is not ready to  
transmit or receive data. This that the DTE is powered up and  
message will not appear  
unless Monitor DTR is  
enabled.  
Check on the DTE status. Verify  
asserting DTR.  
Net Mgmt Link  
Down  
Communications between the 1. Check the devices in the  
DSU and an NMS are not  
possible and the:  
management path data and the  
status of the NMS.  
Management Port Use is  
set to Net Link and/or  
2. Try to access the unit remotely.  
IMC is enabled.  
Device Fail  
yyyyyyyy  
An internal error has been  
detected by the operating  
software. yyyyyyyy indicates  
the 8-digit hexadecimal failure  
code.  
1. Provide the 8-digit failure code  
shown (yyyyyyyy) to your service  
representative.  
2. Reset the DSU to clear the  
condition and message.  
DSU Operational DSU is functioning properly  
and there are no status  
No action needed.  
messages to display.  
1
hhh:mm:ss indicates the amount of time the condition has existed in hours, minutes,  
and seconds. When the maximum time has been exceeded, 255:59:59+ appears.  
November 1997  
7610-A2-GB20-10  
6-6  
 
Monitoring the DSU  
Self-Test Results  
The results of the last power-up or reset self-test appear in the middle column of  
the System and Test Status screen.  
Table 6-2. Self-Test Results Messages  
Message  
What Message Indicates  
What To Do  
1. Reset the DSU and try again.  
Device Fail  
One or more of the DSU’s integrated  
circuit chips has failed device-level  
testing.  
2. Call your service  
representative for assistance if  
the message reappears.  
Memory Fail DSU failed memory verification.  
Passed  
The DSU has been plugged in or  
reset and has passed the diagnostic  
test. There are no other status  
messages.  
No action needed.  
Network Interface Status  
The network interface status fields are read-only:  
Line Rate (Kbps). If the DSU is connected to an operating line and the Line  
Rate (Kbps) shows Autobaud and does not change to a line rate within about  
25 seconds, Line Rate (Kbps) may have to be reconfigured manually. Refer  
to System Options, Table A-1.  
Loop Loss (dB). The loop loss is the loss of signal strength of the receive line  
signal from the local loop.  
To view the Network Interface Status, follow this menu selection sequence:  
Main Menu Status Network Interface Status  
Table 6-3. Network Interface Status Screen Contents  
Field  
Status  
What the Status Indicates  
Line Rate (Kbps)  
56 Kbps  
64 CC  
64 LADS  
Autobaud  
Line rate on the network interface.  
Autobaud indicates the DSU is  
trying to determine the network line  
rate. This should be a temporary  
condition.  
No Signal  
No signal can be detected over the  
network interface.  
Loop Loss (dB)  
0 to 65 dB  
Amount of loop loss – loss of signal  
strength of the receive line signal  
from the local loop, measured in  
decibels.  
Inoperative  
The line may be disconnected.  
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November 1997  
6-7  
 
Monitoring the DSU  
Network Performance Statistics  
Performance statistics for the network interface are available to:  
Monitor the current status of the network operations.  
View the DSU’s performance statistics, which:  
— Assist you in determining the duration of specific conditions.  
— Provide a historical context for problem detection and analysis.  
To view the Network Performance Statistics, follow this menu selection sequence:  
Main Menu Status Performance Statistics  
main/status/performance  
Device Name:  
Model: 7610  
NETWORK PERFORMANCE STATISTICS  
No Signal Count: 101920  
26:33:08  
0:00:00  
8:53:49  
Out of Service Count:  
Out of Frame Count:  
Excessive BPV Count:  
Invalid BPV Count:  
0
621  
99830  
87409  
144:28:11  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
ESC for previous menu MainMenu Exit  
Refresh  
ClrStats  
All counts show the number of occurrences since the last reset of the counters.  
Invalid BPV is a raw count of the number of invalid Bipolar Violations. In the last  
column, hhh:mm:ss indicates the amount of time the condition has existed in  
hours, minutes, and seconds. When the maximum time has been exceeded,  
255:59:59+ appears.  
The screen appears with the cursor in the function area below the dotted line. To  
update the performance statistics, select Refresh and press Return.  
Select ClrStats and press Return to clear all statistics and refresh the screen.  
ClrStats is not available for an Access level of 3.  
November 1997  
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6-8  
 
Testing  
7
Detecting Problems  
The DSU can detect and report problem conditions and perform diagnostic tests.  
The DSU offers a number of indicators to alert you to possible problems:  
LEDs – Refer to the DSU LEDs section in Chapter 6.  
SNMP Traps – For information on traps, refer to the Configuring SNMP Traps  
section in Chapter 8.  
Health and status messages and network performance statistics. Refer to  
Monitoring the DSU, Chapter 6.  
Alarm Condition Indications.  
The following table shows the available indicators of alarm conditions on the  
network interface and the User Data port.  
SNMP ATI Status ASCII Alarm Alarm Specific  
Alarm Condition  
Crossed Pairs  
Trap  
Screen  
(if configured) LED  
LED  
1
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
N
1
No Signal (NS)  
Y
Y
1
Out of Service (OOS)  
Out of Frame (OOF)  
Y
Y
1
Y
Y
1
Excessive Bipolar  
Violations (BPV)  
Y
N
Inband Framing Error  
DTR Off  
N
Y
Y
Y
N
Y
N
N
Y
1
Y
1
Link Up/Link Down Trap  
To configure ASCII Alarms, use the Alarms & Traps options screen. Refer to  
Alarms & Traps Options, Table A-8. For additional information regarding ASCII  
alarm generation, refer to the Alarm Messages section of Chapter 8.  
7610-A2-GB20-10  
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7-1  
 
Testing  
Tests Available  
From the Test menu, you can run network tests, data port tests, and a lamp test  
for the front panel LEDs. Loopbacks can be initiated locally and remotely. Refer to  
Loopbacks, Table 7-2.  
The Test menu is limited to users with an access level of 1 or 2. To access the  
Test menu, follow this menu selection sequence:  
Main Menu Test  
Network tests require the participation of your network service provider.  
The DSU supports physical-level tests independently on a per-interface basis.  
The CSU and DSU loopbacks and 511 test pattern send/monitor are  
supported on the network interface.  
The Local Loopback and 511 test pattern send/monitor are supported on the  
DTE port.  
Network Tests  
To access the Network Tests screen, follow this menu selection sequence:  
Main Menu Test Network Tests  
main/test/network  
Device Name:  
Model: 7610  
NETWORK TESTS  
Status  
Test  
Command  
Result  
0:00:00  
CSU Loopback:  
DSU Loopback:  
Start  
Start  
Inactive  
Inactive  
0:00:00  
Send V.54 Up:  
Send  
Sending  
Send V.54 Down: Send  
Inactive  
Send 511:  
Monitor 511:  
Start  
Stop  
Inactive  
Active  
0:00:00  
125:08:48  
Errors 99999+  
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––  
Ctrl-a to access these functions, ESC for previous menu  
ResetMon  
MainMenu  
Exit  
Use the Command column to start or stop a test by pressing Enter. The Result  
column displays the test duration since the last device reset. When the Monitor  
511 test is active, ResetMon is available to reset the error counter to zero.  
Selecting the Stop command on the Network Test screen or Abort All Tests from  
the Test menu will not disrupt a network-initiated loopback.  
November 1997  
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Testing  
CSU or External Network Loopback  
CSU loopback is an external loopback that is located as close as possible to the  
network interface. An active CSU loopback disrupts IP data going over the IMC.  
DSU  
CSU  
DDS  
Network  
Port  
DTE  
Interface  
Aggregate  
DTE  
Port  
496-15144  
CSU Loopback  
DSU or Internal Network Loopback  
DSU loopback is an internal loopback that is located as close as possible to the  
customer interface serving the DTE.  
An active DSU loopback initiated from the network disrupts IP data going over the  
IMC. However, this test is not disruptive when initiated by the user (via ATI) or by  
the NMS.  
DSU  
CSU  
Aggregate  
DDS  
Network  
Port  
DTE  
Interface  
DTE  
Port  
DSU Loopback  
496-15160  
Send V.54 Up/Down Sequences  
The local DSU can send an ITU-T V.54 Up or Down sequence to request the  
activation or termination of a DSU (digital) loopback of a remote unit. This is the  
same as the DSU Loopback shown above except the test is activated remotely.  
The DSU can send:  
In-band V.54 Up (activation) code to request a Remote DSU Loopback  
(V.54 Loop 2) at the remote DSU or  
In-band V.54 Down (deactivation) code to request the termination of a  
Remote DSU Loopback (V.54 Loop 2) at the remote DSU  
Refer to the Network Tests section for an example of the Network Tests screen.  
Select Send. Sending appears in the Status column followed (after 3 seconds) by  
Command Complete at the bottom of the screen.  
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November 1997  
7-3  
 
Testing  
511 Test Pattern for the Network  
This test sends or monitors the 511 test pattern over the network interface.  
The Monitor 511 test also provides an error counter that can be reset. Refer to  
the Network Tests section for an example of the Network Tests screen.  
Data Port Tests  
For an example of the fields on a test menu screen, refer to the Network Tests  
section. To access the Data Port Tests screen, follow this menu selection  
sequence:  
Main Menu Test Data Port Tests  
Local Loopback  
Local Loopback loops the user data back to the DTE. This loopback is located as  
close as possible to the User Data Port (DTE) interface.  
DSU  
CSU  
DDS  
Network  
Port  
DTE  
Interface  
DTE  
Port  
Aggregate  
496-15145  
Local Loopback  
511 Test Pattern for the DTE  
This test sends or monitors a 511 test pattern over the User Data Port interface.  
The 511 monitor expects the external equipment to provide the clock for the  
511 pattern on the interchange circuit CT113 – Transmit Signal Element Timing –  
DTE Source (XTXC or TT) for timing the incoming pattern. Refer to the  
V.35 User Data Port Connector section of Appendix E.  
Lamp Test  
The DSU supports a Lamp test from the Test menu to determine whether all  
LEDs are lighting and functioning properly.  
During the Lamp test, all LEDs blink simultaneously every second. When you  
stop the Lamp test, the LEDs are restored to their normal condition.  
November 1997  
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7-4  
 
Testing  
Ending an Active Test  
A test initiated by the user can be ended by the user.  
A Test Timeout option is available to automatically terminate a user-initiated  
Loopback or Pattern test (as opposed to manually terminating a test) after it  
has been running a specified period of time. Refer to System Options,  
Table A-1.  
Test Timeout does not pertain to tests commanded by the:  
— Network, such as the network-initiated CSU and DSU Loopbacks.  
— DTE, such as the DTE-initiated Local Loopback.  
On each test screen is a command column. Pressing Return when the cursor  
is on the Start command stops the test.  
Use the Abort All Tests selection from the Test menu to stop all tests running  
on all interfaces, with the exception of network or DTE-initiated loopbacks.  
Command Complete appears when all tests on all interfaces have been  
terminated.  
Test Status Messages  
The Test Status Messages in Table 7-1 appear in the right-most column of the  
System and Test Status screen. For additional information on loopbacks, refer to  
Loopbacks, Table 7-2.  
Table 7-1. Test Status Messages (1 of 2)  
Test Status Message Meaning  
CSU Loopback Active A CSU Loopback toward the network is currently active. Only  
applies to a test initiated by the user via the ATI or the NMS.  
DSU Loopback Active A DSU Loopback toward the network is currently active. Only  
applies to a test initiated by the user via the ATI or the NMS.  
Lamp Test Active  
The Lamp Test is active, causing the LEDs on the front panel to  
light.  
Local Loopback Active A local loopback toward the DTE is currently active.  
Monitoring 511 on  
Network  
DSU is monitoring a 511 test pattern on the network interface.  
Monitoring 511 on Port DSU is monitoring a 511 test pattern over the DTE port.  
Network-init. CSU LB  
Active  
A CSU Loopback initiated by the network is currently active.  
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7-5  
 
Testing  
Table 7-1. Test Status Messages (2 of 2)  
Test Status Message Meaning  
Network-init. DSU LB  
Active  
A DSU Loopback initiated by the network is currently active.  
If the network service is 56 kbps, the network loopback is  
non-latching. A non-latching loopback ends when the  
network activation codes stop.  
If the network service is 64 kbps CC, the network loopback  
is latching. This condition can only occur when the Network  
Interface option Network-initiated DSU Loopback (64K CC)  
is enabled. Refer to Network Interface Options, Table A-2.  
No Test Active  
Status message, indicating no local, remote, or network test in  
progress.  
Sending 511 on  
Network  
A 511 test pattern is being sent over the network interface.  
Sending 511 on Port  
A 511 test pattern is being sent over the DTE port.  
V.54-initiated DSU LB A DSU loopback is active that was initiated by the detection of  
Active  
a V.54 sequence originated by the remote unit. This condition  
can only occur when V.54 Initiated DSU Loopback is enabled.  
Refer to Network Interface Options, Table A-2.  
Loopbacks  
Loopbacks can be started from a variety of points in the network. Refer to  
Table 7-2 for further information.  
Table 7-2. Loopbacks (1 of 2)  
Loopback Type  
Initiated By  
Notes  
Bilateral Loopback  
ATI  
When enabled, running a DSU loopback  
also automatically starts a local  
loopback. Refer to Data Port Options,  
NMS  
Remote unit sending Table A-3, to enable.  
V.54 sequence  
CSU Loopback  
ATI (Network tests)  
NMS  
When initiated by the network, CSU  
Loopback cannot be disabled by the  
user. When IMC is enabled, the  
aggregate data is looped back to the  
network.  
DDS Network, by  
loop current reversal  
DSU Loopback  
(Digital)  
ATI  
When IMC is enabled, only user data is  
looped back to the network. Refer to  
Data Port Options, Table A-3.  
NMS  
Local Loopback  
ATI  
Control via CT141 can be disabled.  
Refer to Data Port Options, Table A-3.  
DTE via CT141  
NMS  
November 1997  
7610-A2-GB20-10  
7-6  
Testing  
Table 7-2. Loopbacks (2 of 2)  
Loopback Type  
Initiated By  
Notes  
Network-initiated  
56 kbps DSU  
Loopback (Non-  
latching loopback)  
DDS Network  
When IMC is enabled, the aggregate  
data stream is looped back to the  
network. Cannot be disabled by user.  
Network-initiated  
64 kbps CC DSU  
Loopback  
DDS Network  
Includes optional data scrambling and  
uses 25-second timer to detect the  
network sequence. When IMC is  
enabled, the aggregate data stream is  
looped back to the network. Can be  
disabled by user.  
(Latching loopback)  
Remote Digital  
Loopback  
Remote unit sending Same as a DSU Loopback but initiated  
V.54 sequence  
by a remote unit via V.54 sequence.  
When IMC is enabled, only user data is  
looped back to the network. Can be  
disabled locally. Refer to Network  
Interface Options, Table A-2.  
V.54 Sequences to  
remote unit  
ATI  
Control via CT140 can be disabled.  
Refer to Data Port Options, Table A-3.  
NMS  
DTE via CT140  
Device Reset  
The DSU can be reset locally or remotely. From the Control menu, select Reset  
Device and press Return. The DSU reinitializes itself, performing a Device  
Self-Test. Refer to Self-Test Results Messages, Table 6-2.  
Misconfiguring the DSU could make the user interface inaccessible, leaving it in a  
state where an ATI session cannot be started through the Terminal port or via a  
Telnet session. If this occurs, DSU connectivity can be restored with a terminal  
that is directly connected and set for Terminal Port option defaults.  
Two methods can be used to restore access to the ATI. Both methods cause a  
device reset.  
Reset Terminal Port – Allows you to only reset the configuration options  
related to Terminal port usage. No security-related configuration options are  
changed.  
Reload Factory Defaults – Allows you to reload the Default Factory  
Configurations, resetting all of the configuration areas and control settings for  
security reasons. This method is useful when the user’s passwords have  
been forgotten.  
7610-A2-GB20-10  
November 1997  
7-7  
 
Testing  
Refer to Terminal Port Options, Table A-4. To reset Terminal port settings:  
Procedure  
1. At the async terminal connected to the Terminal port, verify that the Terminal  
port options are set to the default settings:  
— Data Rate(Kbps) to 9.6  
— Character Length to 8  
— Stop Bits to 1  
— Parity to None  
2. Power the DSU Off and back On. The DSU performs a power-up routine.  
3. Immediately after the OK LED turns on, press the Return key 5 times quickly  
in succession. The System Paused screen appears.  
4. Tab to the desired method, and enter yes (or y) for the selected prompt.  
If entering yes to prompt . . . Then all . . .  
Reset Terminal Port Options  
Terminal port options are set to their factory  
default values. Refer to Terminal Port Options,  
Table A-4.  
Reload Factory Defaults  
Factory default settings contained in the Default  
Factory Configuration area are loaded in Current,  
Customer 1, and Customer 2 configuration areas.  
Any changes to configuration and control settings  
will be replaced by the factory defaults.  
If no (or n) is entered, or if no selection is made within 30 seconds, the DSU  
returns to the condition or operation it was in when the system pause was  
initiated, with the Terminal port data rate returning to its configured rate.  
5. If yes (or y) is entered, the DSU resets itself and initiates a Device Self-Test.  
Connectivity is restored and the Main Menu screen appears.  
November 1997  
7610-A2-GB20-10  
7-8  
 
Messages and Troubleshooting  
8
Messages and Troubleshooting  
There are many messages available to assess the status of the device and  
contribute to problem resolutions. Refer to the following sections:  
Alarm Messages  
ASCII Alarms  
ASCII Alarm Messages  
Configuring SNMP Traps  
Dialing Out SNMP Traps  
Device Messages  
Troubleshooting  
Alarm Messages  
Alarm messages and SNMP traps are unsolicited messages sent out from the  
DSU automatically when the DSU detects conditions set by the user.  
ASCII Alarms  
Alarm messages are sent out to an ASCII terminal or printer via the Management  
port if:  
Port Use is configured for Alarms. Refer to Management Port Options,  
Table A-5.  
Each ASCII Alarm Message to be generated has been enabled. Refer to  
Network Interface Options, Table A-2, and System Options, Table A-1.  
ASCII Alarm Messages option is enabled. Refer to Alarms & Traps Options,  
Table A-8.  
7610-A2-GB20-10  
November 1997  
8-1  
 
Messages and Troubleshooting  
When individually enabled, a specific alarm is sent at the start of the  
corresponding alarm condition. If more than one alarm condition exists, only the  
highest priority alarm will be sent. Any other alarms are sent out when the higher  
priority alarm clears. An alarm cleared message is sent when the alarm  
conditions no longer exist.  
The dialing out of ASCII Alarm messages, via an external device (e.g. modem)  
connected to the Management port, can only occur when, in addition to the  
above, the:  
External Device Commands is set to AT or Other. Refer to External Device  
Options, Table A-6.  
Alarm and Trap Dial-Out is enabled. Refer to Alarms & Traps Options,  
Table A-8.  
ASCII Alarm Messages  
Refer to the Entering Device and System Information section of Chapter 3 for  
device name information. Each ASCII alarm message is preceded by the device  
name and a time stamp. The time stamp (ddd:hh:mm) represents the cumulative  
number of days, hours, and minutes since the DSU’s last reset. The time resets  
to zero on power up or reset. An ASCII alarm message displays similar to this  
example:  
NE815378  
283:14:57  
Crossed Pair condition has been detected  
on the DDS Network Interface  
The following messages can be generated by the DSU and are listed in high to  
low priority order:  
A Crossed Pair condition has been detected on the DDS Network Interface.  
A No Signal (NS) condition has been detected on the DDS Network Interface.  
An Out of Service (OOS) condition has been detected on the DDS Network  
Interface.  
An Out of Frame (OOF) condition has been detected on the DDS Network  
Interface.  
An Excessive Bipolar Violations (BPV) condition has been detected on the  
DDS Network Interface.  
An In-Band Framing Error condition has been detected on the DDS Network  
Interface.  
November 1997  
7610-A2-GB20-10  
8-2  
Messages and Troubleshooting  
Configuring SNMP Traps  
An SNMP trap can be automatically sent out the IMC or the Management port to  
the SNMP manager when the DSU detects conditions set by the user. These  
traps enable the SNMP manager to gauge the state of the network. Refer to  
Standards Compliance for SNMP Traps, Appendix D, for details of SNMP traps  
supported by the DSU.  
To configure the DSU for SNMP traps, use the SNMP Traps Options screen to:  
Enable SNMP traps.  
Set the number of SNMP managers that receive SNMP traps from the DSU.  
Enter an IP address and network destination for each SNMP manager  
specified.  
Select the type of SNMP traps to be sent from the DSU.  
To configure SNMP Traps, follow this menu selection sequence:  
Main Menu Configuration Load Configuration From Edit →  
SNMP & Communication SNMP Traps  
Refer to SNMP Traps Options, Table A-12.  
Dialing Out SNMP Traps  
Configure the SNMP traps before performing this procedure.  
Procedure  
1. Configure the phone directories to use when dialing out SNMP traps through  
the Management port and a connected external device. Refer to the Call  
Setup section in Chapter 3.  
2. Use the Alarms & Traps Options to enable the DSU’s automatic call initiation  
to a remote device with Alarm & Trap Dial-Out, Call Retry, and Alternate  
Dial-Out Directory. Follow this menu selection sequence:  
Main Menu Configuration Load Configuration From Edit →  
Alarms & Traps  
Refer to Alarms & Traps Options, Table A-8.  
7610-A2-GB20-10  
November 1997  
8-3  
 
Messages and Troubleshooting  
Device Messages  
The Device Messages in Table 8-1, listed in alphabetical order, may appear in the  
messages area at the bottom of the ATI screens.  
Table 8-1. Device Messages (1 of 2)  
Device Message  
What Message Indicates  
What To Do  
Blank Entries  
Removed  
New had been selected  
from the Administer Logins  
screen, no entry was made,  
and Save was selected.  
No action needed.  
Reenter the Login ID,  
Password, and Access Level.  
Command Complete  
Invalid Character (x)  
Action requested has  
successfully completed.  
No action needed.  
1
A nonprintable ASCII  
character has been  
entered.  
Reenter information using valid  
characters.  
Invalid – Network  
Network-initiated loopback  
No action needed.  
Initiated CSU (or DSU) was in progress when  
Loopback Active  
another selection was  
made.  
Invalid Password  
Login is required and an  
incorrect password was  
entered; access is denied.  
Try again.  
Contact your system  
administrator to verify your  
password.  
Invalid – [Test]  
Already Active  
[Test] can be a CSU, DSU,  
or DTE Local Loopback, or  
a Send 511 or Monitor 511.  
The [test] was already in  
progress when another  
selection was made.  
Allow test to continue.  
Select another test.  
Stop the test.  
Invalid Test  
Combination  
A loopback or 511 pattern  
test was in progress when  
Start was selected to start  
another test, or was active  
on the same or another  
interface when Start was  
selected.  
Wait until other test ends and  
message clears.  
Abort all tests from the Test  
menu screen.  
Stop the test from the same  
screen the test was started  
from.  
Limit of six Login IDs  
reached  
An attempt to enter a new  
login ID was made, and the  
limit of six login/password  
combinations has been  
reached.  
1. Delete another login/password  
combination.  
2. Reenter the new login ID.  
No Security Records  
to Delete  
Delete was selected from  
the Administer Login  
screen, and no security  
records had been defined.  
No action needed.  
Enter a security record.  
1
x is the character not being accepted.  
November 1997  
7610-A2-GB20-10  
8-4  
Messages and Troubleshooting  
Table 8-1. Device Messages (2 of 2)  
Device Message  
What Message Indicates  
What To Do  
Password Matching  
Error – Re-enter  
Password  
Password entered in the  
Re-enter Password field of  
the Administer Logins  
screen does not match  
what was entered in the  
Password field.  
Try again.  
Contact your system  
administrator to verify your  
password.  
Please Wait  
Test Active  
Command takes longer  
than 5 seconds.  
Wait until message clears.  
A test is running and no  
higher priority health and  
status messages exist.  
Contact service provider if test  
initiated by the network.  
Wait until the other test ends  
and message clears.  
Cancel all tests from the Test  
screen.  
Stop the test from the same  
screen the test was started  
from.  
Troubleshooting  
This DSU is designed to provide you with many years of trouble-free service. If a  
problem occurs, however, refer to Table 8-2 for possible solutions.  
Table 8-2. Troubleshooting (1 of 2)  
Symptom  
Possible Cause  
Solutions  
Alarm LED is on.  
One of several alarm  
conditions exists. Health  
and Status displays the  
alarm condition.  
Refer to Health and Status  
Messages, Table 6-1, for  
recommended action.  
Cannot access the  
DSU via the ATI.  
Login or password is  
1. Power the DSU on and off and  
try again.  
incorrect, Terminal port is  
misconfigured, or the DSU  
otherwise configured so it  
prevents access.  
2. If problem recurs, try to access  
the ATI through a Telnet session,  
if enabled.  
3. Do a Device Reset. Refer to the  
Device Reset section of  
Chapter 7.  
Device Fail appears The DSU detects an  
Power the DSU off and on and  
try again.  
on the System and  
Test Status screen  
under Self-Test  
results.  
internal hardware failure.  
Contact your service  
representative.  
7610-A2-GB20-10  
November 1997  
8-5  
 
Messages and Troubleshooting  
Table 8-2. Troubleshooting (2 of 2)  
Symptom  
Possible Cause  
Solutions  
An LED is not lit.  
LED is burned out.  
Run the Lamp test. If the LED in  
question does not flash with the  
other LEDs, then contact your  
service representative.  
No power, or the  
LEDs are not lit.  
The power cord is not  
Check that the power cord is  
securely attached at both ends.  
securely plugged into the  
wall receptacle and into the  
rear panel connection.  
The wall receptacle has no  
power.  
Check the wall receptacle power  
by plugging in some equipment  
that is known to be working.  
Check the circuit breaker.  
Verify that your site is not on an  
energy management program.  
Not receiving data;  
DSU is not  
DDS line rate/speed has 1. Verify that your subscriber loop is  
changed.  
running at 56 or 64 CC kbps.  
responding.  
Excessive BPVs causing  
DSU to become stuck in  
Autobaud mode.  
2. Verify that the DSU is set to the  
same rate as your subscriber  
loop. The DSU’s rate is displayed  
on the Network Interface Status  
screen.  
Excessive Loop Loss  
causing DSU to become  
stuck in Autobaud mode.  
3. If getting Excessive BPVs, verify  
that you do not have a bad cable.  
If the cable is good, contact the  
network provider.  
4. If getting excessive Loop Loss  
(dB) indications, install a higher  
quality cable. Refer to Model  
7610 DSU LADS Connection  
Distances, Table 3, in the  
Start-Up Instructions.  
5. If the DDS Line Rate (Kbps) field  
shows Autobaud, the DSU may  
be stuck in Autobaud mode.  
Configure Line Rate (Kbps) for  
56 or 64 kbps.  
6. Run Loopback tests. Refer to the  
Tests Available section of  
Chapter 7.  
Power-Up Self-Test The DSU has detected an  
Reset the DSU and try again.  
fails. Only Alarm  
LED is on after  
power-up.  
internal hardware failure.  
Contact your service  
representative.  
November 1997  
7610-A2-GB20-10  
8-6  
 
Configuration Option Tables  
A
Configuration Option Tables Overview  
The tables in this appendix summarize the configuration options accessed when  
you select Configuration on the Main Menu. The configuration options are  
arranged into groups based upon functionality.  
Select . . .  
To Access the . . .  
To Configure the . . .  
System  
System Options, Table A-1  
General system  
options  
Network  
Network Interface Options, Table A-2  
Data Port Options, Table A-3  
DDS network interface  
User data on DTE port  
Access to the ATI  
Data Port  
User Interface  
Terminal Port Options, Table A-4  
Management Port Options, Table A-5  
External Device Options, Table A-6  
Telnet Sessions Options, Table A-7  
Alarms & Traps Alarms & Traps Options, Table A-8  
ASCII alarms and  
SNMP traps initiated  
by the DSU  
SNMP &  
Communication  
Communication Protocol Options,  
Table A-9  
Management support  
through SNMP and  
Telnet session and  
communication  
protocols  
General SNMP Management Options,  
Table A-10  
SNMP NMS Security Options, Table A-11  
SNMP Traps Options, Table A-12  
NOTE:  
All changes to configuration options must be saved. Refer to the Saving  
Configuration Options section of Chapter 3.  
7610-A2-GB20-10  
November 1997  
A-1  
 
Configuration Option Tables  
User Interface  
Terminal Port  
Configuration  
Edit/Display  
• System  
MAIN MENU  
Status  
Test  
Configuration  
Control  
Load  
Save  
• Management Port  
• External Device  
Telnet Session  
• Network  
• Data Port  
• User Interface  
• Alarms & Traps  
SNMP & Communication  
• Communication Protocol  
• General SNMP Management  
• SNMP NMS Security  
• SNMP Traps  
• SNMP &  
Communication  
496-15178  
System Options Menu  
For System Options, refer to Table A-1. To access the System Options screen,  
follow this menu selection sequence:  
Main Menu Configuration Load Configuration From Edit System  
Table A-1. System Options (1 of 3)  
Operating Mode  
Possible Settings: DDS, LADS  
Default Setting: DDS  
The unit’s operating mode depends upon the DSU’s application.  
DDS – Standard DDS network operation. The operating rate is either 56 kbps or  
64 kbps CC.  
LADS – The Local Area Data Set operating mode requires that the local and remote  
units are connected directly to each other. This is a point-to-point application; also  
known as LDM.  
November 1997  
7610-A2-GB20-10  
A-2  
 
Configuration Option Tables  
Table A-1. System Options (2 of 3)  
DDS Line Rate (Kbps)  
Possible Settings: 56, 64CC, Autobaud  
Default Setting: Autobaud  
The unit starts up with Autobaud. When the DDS line rate obtained from the service  
provider is detected, Autobaud is replaced with the actual rate.  
DDS Line Rate (Kbps) option appears when Operating Mode is set to DDS.  
NOTES: – Setting the actual data rate results in minimum power-up time. (If both  
DSUs use Autobaud, the process can take several minutes.) Configure  
the actual data rate after initial installation.  
– The clock rates generated by the DSU at the DTE interface (TXC and  
RXC) equal the operating rate minus the configured rate of 1600, 4000,  
or 8000 bps for the IMC, if enabled. Refer to the In-Band Management  
Channel Rate (bps) option in Table A-2.  
56 – 56 kbps line rate.  
64CC – 64 kbps Clear Channel on a 72 kbps circuit.  
Autobaud – This setting is automatically changed to the actual operating line rate of  
56 kbps or 64CC as soon as the signal is detected.  
LADS Timing  
Possible Settings: Internal, External, Receive  
Default Setting: Internal  
Determines the timing source for the unit.  
LADS Timing option appears when Operating Mode is set to LADS.  
Internal – Timing derived from the unit’s local clock. Use this setting for the LADS  
primary timing unit that establishes the timing for both point-to-point units.  
External – Timing is derived from the external clock provided by the DTE connected to  
the V.35 interface on circuit CT113 (pins U, W).  
NOTE: The valid rate generated by the DTE must be equal to the LADS line rate  
minus the configured rate of 1600, 4000, or 8000 bps for the IMC, if  
enabled. Refer to the In-Band Management Channel Rate (bps) option in  
Table A-2.  
Receive – Timing is derived from the line receive signal unless the unit is running  
diagnostic tests. During the tests, the timing source is the internal clock. This setting  
should be used for a LADS secondary timing unit.  
LADS Line Rate (Kbps)  
Possible Settings: 56, 64  
Default Setting: 64  
Line operating rate for LADS operation.  
LADS Line Rate (Kbps) option appears when Operating Mode is set to LADS.  
56 – 56 kbps line rate. Provides increased distance for the LADS applications.  
64 – 64 kbps line rate.  
7610-A2-GB20-10  
November 1997  
A-3  
Configuration Option Tables  
Table A-1. System Options (3 of 3)  
Test Timeout  
Possible Settings: Enable, Disable  
Default Setting: Enable  
Allows user-initiated tests to end automatically. Recommend enabling when the unit is  
managed remotely through the IMC to avoid the requirement to terminate the test  
manually.  
Enable – User-initiated loopback and pattern tests end when test duration is reached.  
Disable Tests can be terminated manually from the Network Tests screen. Refer to  
the Network Tests section of Chapter 7.  
NOTE: Tests commanded by the DTE or network-initiated tests are not affected by  
this test timeout.  
Test Duration (min)  
Possible Settings: 1–120  
Default Setting: 10  
Number of minutes for a test to be active before automatically ending.  
Test Duration (min) option appears when Test Timeout is enabled.  
1 to 120 – Amount of time in minutes for a user-initiated test to run before terminating.  
Security Violation Alarm  
Possible Settings: Enable, Disable  
Default Setting: Enable  
Issues an alarm when access to the unit is attempted and fails.  
Enable – Alarm generated when a security violation is detected. Refer to the  
Trap: authentificationFailure section of Appendix D for possible alarm causes.  
Disable – No alarm generated for a security violation.  
November 1997  
7610-A2-GB20-10  
A-4  
 
Configuration Option Tables  
Network Interface Options Menu  
For Network Interface Options, refer to Table A-2. To access the Network  
Interface Options screen, follow this menu selection sequence:  
Main Menu Configuration Load Configuration From Edit Network  
Table A-2. Network Interface Options (1 of 4)  
Network-initiated DSU Loopback (64K CC)  
Possible Settings: Enable, Disable  
Default Setting: Enable  
Indicates whether the access unit responds to a DSU latching loopback sequence sent  
by the network as specified by TR62310.  
Network-initiated DSU Loopback (64K CC) option appears when Operating Mode  
is set to DDS in Table A-1.  
Enable – Responds to network-initiated commands to start and stop a latching DSU  
loopback.  
Disable – DSU will not respond to a DSU loopback initiated by the network.  
Data Scrambling (64K CC)  
Possible Settings: Enable, Disable  
Default Setting: Disable  
Data scrambling is used to suppress the possible simulation of network-initiated DSU  
latching loopback commands by application data.  
Data Scrambling (64K CC) option appears when Operating Mode is set to DDS in  
Table A-1.  
Enable – Enables data scrambling. The local and remote units must be set the same.  
Disable – No data scrambling.  
V.54 Initiated DSU Loopback  
Possible Settings: Enable, Disable  
Default Setting: Disable  
When enabled, user data is looped back to the network when a V.54 Loop Up sequence  
is received. The DSU loopback ends when a V.54 Loop Down sequence is detected.  
Enable – DSU loopback can be initiated or terminated by a remote unit sending in-band  
V.54 Loop 2 Up or Down sequences.  
Disable V.54 Loop 2 sequences are ignored.  
In-Band Management Channel Rate (bps)  
Possible Settings: Disable, 1600, 4000, 8000  
Default Setting: Disable  
The IMC provides a non-disruptive management channel to the remote DSU and uses a  
portion of the DTE line rate.  
Disable – The IMC is inactive.  
1600, 4000, or 8000 – Sets the amount of the line rate in bps to allocate to the IMC.  
NOTE: The local and remote units must be set the same.  
7610-A2-GB20-10  
November 1997  
A-5  
Configuration Option Tables  
Table A-2. Network Interface Options (2 of 4)  
IMC IP Address  
Possible Settings: 000.000.000.000 – 223.255.255.255, Clear  
Default Setting: 000.000.000.000  
Specifies the Internet Protocol address used to access the unit via the IMC interface.  
IMC IP Address option does not appear when the In-Band Management Channel  
Rate (bps) is disabled.  
000.000.000.000 – 223.255.255.255 – The range for the first byte is 000 to 223, with the  
exception of 127. The range for the remaining three bytes is 000 to 255.  
Clear – Clears the IMC IP address and sets to all zeros.  
IMC Subnet Mask  
Possible Settings: 000.000.000.000 – 255.255.255.255, Clear  
Default Setting: 000.000.000.000  
Specifies the subnet mask used to access the unit via the IMC interface.  
IMC Subnet Mask option does not appear when the In-Band Management  
Channel Rate (bps) is disabled.  
000.000.000.000 – 255.255.255.255 – Set the IMC interface subnet mask. The range  
for each byte is 000 to 255.  
Clear – Clears the IMC Subnet Mask and sets to all zeros. When the subnet mask is all  
zeros, the device creates a default subnet mask based on the class of IP address:  
– Class A defaults to 255.000.000.000  
– Class B defaults to 255.255.000.000  
– Class C defaults to 255.255.255.000  
IMC Routing Information Protocol  
Possible Settings: None, Proprietary  
Default Setting: Proprietary  
The RIP routes IMC management information between devices.  
IMC Routing Information Protocol does not appear when the In-Band Management  
Channel Rate (bps) option is disabled.  
None – No routing protocol.  
Proprietary – Uses proprietary variant of RIP Version 1 to enable the routing of  
IP traffic between Paradyne devices.  
Cross Pair Detection Alarm  
Possible Settings: Enable, Disable  
Default Setting: Enable  
When a crossed pair condition is detected on the network interface, an ASCII alarm is  
generated.  
Cross Pair Detection Alarm option appears when the Operating Mode is set to  
DDS in Table A-1.  
Enable – Generates an ASCII alarm when a crossed pair condition is detected.  
Disable – No ASCII alarm is generated.  
NOTE: Additional settings are required to send out an ASCII alarm. Refer to the  
Alarm Messages section in Chapter 8.  
November 1997  
7610-A2-GB20-10  
A-6  
Configuration Option Tables  
Table A-2. Network Interface Options (3 of 4)  
No Signal Alarm  
Possible Settings: Enable, Disable  
Default Setting: Enable  
When a NS condition is detected on the network interface, an ASCII alarm is generated.  
Enable – Generates an ASCII alarm when a no signal condition is detected.  
Disable – No ASCII alarm is generated.  
NOTE: Additional settings are required to send out an ASCII alarm. Refer to the  
Alarm Messages section in Chapter 8.  
Out of Service Alarm  
Possible Settings: Enable, Disable  
Default Setting: Enable  
When an OOS condition is detected on the network interface, an ASCII alarm is  
generated.  
Out of Service Alarm option appears when the Operating Mode is set to DDS in  
Table A-1.  
Enable – Generates an ASCII alarm when an out of service condition is detected.  
Disable – No ASCII alarm is generated.  
NOTE: Additional settings are required to send out an ASCII alarm. Refer to the  
Alarm Messages section in Chapter 8.  
Out of Frame Alarm  
Possible Settings: Enable, Disable  
Default Setting: Enable  
When an OOF condition is detected on the network interface, an ASCII alarm is  
generated.  
Enable – Generates an ASCII alarm when an out of frame condition is detected on the  
network interface.  
Disable – No ASCII alarm is generated.  
NOTE: Additional settings are required to send out an ASCII alarm. Refer to the  
Alarm Messages section in Chapter 8.  
Excessive BPV Alarm  
Possible Settings: Enable, Disable  
Default Setting: Enable  
When a Bipolar Violation condition is detected on the network interface, an ASCII alarm  
is generated.  
Enable – Generates an ASCII alarm when an excessive BPV condition is detected.  
Disable – No ASCII alarm is generated.  
NOTE: Additional settings are required to send out an ASCII alarm. Refer to the  
Alarm Messages section in Chapter 8.  
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Configuration Option Tables  
Table A-2. Network Interface Options (4 of 4)  
In-Band Framing Alarm  
Possible Settings: Enable, Disable  
Default Setting: Enable  
When an in-band framing condition is detected on the network interface, an ASCII alarm  
is generated.  
In-Band Framing Alarm option does not appear when the In-Band Management  
Channel Rate (bps) is disabled.  
Enable – Generates an ASCII alarm when a in-band framing condition is detected.  
Disable – No ASCII alarm is generated.  
NOTE: Additional settings are required to send out an ASCII alarm. Refer to the  
Alarm Messages section in Chapter 8.  
November 1997  
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Configuration Option Tables  
Data Port Options Menu  
For Data Port Options, refer to Table A-3. To access the Data Port Options  
screen, follow this menu selection sequence:  
Main Menu Configuration Load Configuration From Edit Data Port  
Table A-3. Data Port Options (1 of 3)  
Invert Transmit Clock  
Possible Settings: Enable, Disable  
Default Setting: Disable  
The DSU clock provided on Interchange Circuit CT114, Transmit Signal Element Timing  
DCE source (TXC), is phase inverted with respect to Interchange Circuit CT103,  
Transmitted Data (TXD). Recommended when data errors are occurring due to long  
cable lengths.  
Enable – The DSU-supplied clock is phase inverted with respect to the transmitted data  
TXD.  
Disable – The clock supplied by the DSU on TXC is normal (i.e., not inverted).  
Port (DTE) Initiated Loopbacks  
Possible Settings: Disable, Local, Remote, Both  
Default Setting: Disable  
Specifies whether the DTE can initiate and terminate local and/or remote loopbacks.  
The DTE loopback control is done through the Interchange Circuits specified by the  
V.54 standard.  
NOTE: Refer to the Loopbacks section of Chapter 7.  
Disable – No local or remote loopbacks can be initiated by the DTE.  
Local – A local loopback can be controlled by the DTE, via the Interchange Circuit LL  
(CT141), as specified by V.54. The DTE port remains in loopback as along as LL  
remains on. Aborting the loopback from the ATI has no effect.  
Remote – A remote digital loopback can be controlled by the DTE, via Interchange  
Circuit RL (CT140), as specified by V.54. The remote equipment must be able to detect  
the in-band V.54 loopback sequence.  
Both – Both the local and remote loopbacks can be controlled by the DTE.  
Bilateral Loopback  
Possible Settings: Enable, Disable  
Default Setting: Disable  
When a DSU loopback is initiated, a local DTE loopback is also automatically initiated.  
A Bilateral Loopback can be started by the ATI/NMS or by detection of a V.54 Loop 2 Up  
sequence.  
Enable – When Bilateral Loopback is enabled, running a DSU loopback also  
automatically starts a local loopback. The local loopback ends when the DSU loopback  
terminates.  
Disable – Running a DSU loopback does not start a local loopback.  
NOTE: Refer to the Loopbacks and the Network Tests sections of Chapter 7.  
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Configuration Option Tables  
Table A-3. Data Port Options (2 of 3)  
Carrier Control by RTS  
Possible Settings: Constant, Switched  
Default Setting: Constant  
Simulates Constant or Switched Carrier operation.  
Carrier Control by RTS option appears when In-Band Management Channel  
Rate (bps) is disabled in Table A-2.  
Constant – The internal RTS is forced on and the DSU is in a constant Data Mode on  
the transmit line. The external RTS lead is ignored. The actual signal on the line is either  
all ones (DMI) or DTE transmitted data.  
Switched – RTS is monitored and CMI codes are transmitted when RTS is off.  
CTS Control  
Possible Settings: Standard, Follow RTS, Forced On, Circuit Assurance  
Default Setting: Standard  
Specifies the operation of the Interchange Circuit CT106, Clear to Send (CTS), which is  
an output from the DSU.  
Standard – CTS follows the internal RTS with a fixed delay, except that CTS will be off  
when a network interface related alarm is detected or a test is active. The active test  
may be initiated locally, remotely, or by the network.  
Follow RTS – CTS follows the external RTS lead without delay, regardless of alarms  
and tests.  
Forced On – CTS is always forced on after the unit is powered up with a successful  
self-test.  
Circuit Assurance – With circuit assurance, CTS operates the same as the Standard  
option, except that CTS will also be deasserted when CMI codes are being received.  
RLSD Control  
Possible Settings: Standard, Forced On  
Default Setting: Standard  
Specifies the operation of the Interchange Circuit CT109, Received Line Signal Detector  
(RLSD or CD), which is an output from the DSU.  
Standard – RLSD is asserted when Data Mode is on the receive line. RLSD deasserts  
when a DDS facility alarm is detected or the DSU is receiving CMI codes.  
Forced On – RLSD is forced on after the unit is powered up with a successful self-test.  
DSR Control  
Possible Settings: Standard, Forced On, On During Test  
Default Setting: Standard  
Specifies the operation of the Interchange Circuit CT107, Data Set Ready (DSR), which  
is an output from the DSU.  
Standard – DSR is always asserted, except when a DDS facility alarm is reported or  
the DSU is in Test mode.  
Forced On – DSR is forced on after the unit is powered up with a successful self-test.  
On During Test – DSU operates the same as the Standard option, except that DSR  
remains asserted when the DSU is in Test mode to allow the DTE to send test patterns.  
November 1997  
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Configuration Option Tables  
Table A-3. Data Port Options (3 of 3)  
Monitor DTR  
Possible Settings: Enable, Disable  
Default Setting: Enable  
Indicates to the DSU whether to monitor the Interchange Circuit CT108, Data Terminal  
Ready (DTR), from the DTE.  
Enable – The DSU monitors the state of DTR on the User Data (DTE) port. Based on  
the Link Traps option setting in Table A-12, the DSU uses the DTR circuit to trigger a  
Link Up/Down SNMP trap and a Health and Status message.  
Disable – DTR is not monitored by the DSU. Use when a DTE does not provide the  
DTR lead at the interface.  
User Interface Options Menu  
The User Interface Options Menu includes the following:  
Terminal Port Options, Table A-4  
Management Port Options, Table A-5  
External Device Options, Table A-6  
Telnet Session Options, Table A-7  
Terminal Port Options  
To access the Terminal Port Options screen, follow this menu selection sequence:  
Main Menu Configuration Load Configuration From Edit →  
User Interface Terminal Port  
Table A-4. Terminal Port Options (1 of 3)  
Data Rate (Kbps)  
Possible Settings: 2.4, 4.8, 9.6, 14.4, 19.2, 28.8, 38.4  
Default Setting: 9.6  
Data rate in kbps on the Terminal port.  
2.4 to 38.4 – Selects a Terminal port data rate from 2.4 to 38.4 kbps.  
Character Length  
Possible Settings: 7, 8  
Default Setting: 8  
Specifies the number of bits needed to represent one character, including the parity bit.  
7 or 8 – Sets the bits per character.  
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Configuration Option Tables  
Table A-4. Terminal Port Options (2 of 3)  
Parity  
Possible Settings: None, Even, Odd  
Default Setting: None  
Specifies Parity for the Terminal port.  
None – Provides no parity.  
Even – Parity is even.  
Odd – Parity is odd.  
Stop Bits  
Possible Settings: 1, 1.5, 2  
Default Setting: 1  
Provides the number of stop bits for the Terminal port.  
1, 1.5, or 2 – Selects the number of stop bits.  
Monitor DTR  
Possible Settings: Enable, Disable  
Default Setting: Enable  
Specifies monitoring of the Data Terminal Ready (DTR) control lead.  
Enable – Standard operation of the DTR control lead.  
Disable – DTR is ignored. Some external device connections may require this setting.  
Login Required  
Possible Settings: Enable, Disable  
Default Setting: Disable  
Used to secure access to the ATI through the Terminal port. Login IDs are created with  
a password and access level.  
Enable – Security is enabled. When ATI access is attempted through the Terminal port,  
a screen appears that requires a Login ID and password.  
Disable – Main menu appears with no Login required.  
NOTE: Refer to the Creating a Login section of Chapter 4.  
Port Access Level  
Possible Settings: Level 1, Level 2, Level 3  
Default Setting: Level 1  
The Terminal port access level is interrelated with the access level of the Login ID.  
Level 1 – This is the highest access level. If Login Required is disabled, the Terminal  
port access is level 1. If Login Required is enabled, the effective level is the Login ID  
access level.  
Level 2 – This access level overrides a Login ID with an access level 1. If a Login ID  
has an access level of 3, the effective access level is 3.  
Level 3 – This access level becomes the effective access level and overrides a Login  
ID with an access level of 1 or 2.  
NOTE: Refer to the ATI Access section of Chapter 4 for access level details.  
November 1997  
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Configuration Option Tables  
Table A-4. Terminal Port Options (3 of 3)  
Inactivity Timeout  
Possible Settings: Enable, Disable  
Default Setting: Disable  
Provides automatic logoff of an ATI session through the Terminal Port. When the  
session is closed, User Interface Idle appears on the screen and the unit toggles the  
Terminal port DSR lead.  
Enable – The ATI session terminates automatically after the Disconnect Time set in the  
next option. When the session was occurring over an external modem connected to the  
Terminal port, the modem will interpret the DSR toggle as DTR being dropped and  
disconnect.  
Disable – An ATI session through the Terminal port will remain active indefinitely.  
Disconnect Time(minutes)  
Possible Settings: range 1 – 60  
Default Setting: 5  
Number of minutes of inactivity before the ATI session terminates automatically.  
Timeout is based on no keyboard activity.  
Disconnect Time(minutes) option appears when Inactivity Timeout is enabled.  
1 to 60 – The ATI user session is closed after the selected number of minutes.  
Management Port Options  
To access the Management Port Options screen, follow this menu selection  
sequence:  
Main Menu Configuration Load Configuration From Edit →  
User Interface Management Port  
Table A-5. Management Port Options (1 of 3)  
Port Use  
Possible Settings: Net Link, Alarms, None  
Default Setting: Net Link  
The Management port provides a choice of functions.  
Net Link – The Management port is the network communication link and provides  
connectivity to an IP network to support SNMP managers and Telnet sessions.  
Alarms – The Management port is dedicated as an alarm port and sends out ASCII  
alarm messages.  
None – Disables the Management port.  
No other fields in this table will appear when set to None.  
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Configuration Option Tables  
Table A-5. Management Port Options (2 of 3)  
Port Type  
Possible Settings: Asynchronous, Synchronous  
Default Setting: Synchronous  
Establishes asynchronous or synchronous communication for the Management port.  
Port Type option can be changed only when Port Use is set to Net Link.  
Asynchronous – Port set for asynchronous communication.  
Asynchronous displays when Port Use is set to Alarms and cannot be changed.  
Synchronous – Port set for synchronous communication.  
Clock Source  
Possible Settings: Internal, External  
Default Setting: Internal  
Specifies internal or external clocking.  
Clock Source option appears when Port Type is set to Synchronous.  
Internal – Clocking is provided internally.  
External – Clocking is provided externally. The Management port is always defined as a  
DCE. This option setting forces the Management port to use external transmit clocking  
(XTXC or TT) from a connected device (DTE).  
Data Rate (Kbps)  
Possible Settings: 2.4, 4.8, 9.6, 14.4, 19.2, 28.8, 38.4  
Default Setting: 9.6  
Specifies the Management port data rate in kbps.  
Data Rate (Kbps) option does not appear when Port Type is set to Synchronous  
with Clock Source set to External.  
2.4 to 38.4 – Selects a Management port data rate from 2.4 to 38.4 kbps.  
2.4 kbps and 4.8 kbps only appear when Port Type is set to Asynchronous.  
Character Length  
Possible Settings: 7, 8  
Default Setting: 8  
Specifies the number of bits needed to represent one character.  
Character Length option appears when Port Type is set to Asynchronous.  
7 or 8 – Sets the bits per character.  
Parity  
Possible Settings: None, Even, Odd  
Default Setting: None  
Specifies the Parity on the Management port.  
Parity option appears when Port Type is set to Asynchronous.  
None – Provides no parity.  
Even – Parity is even.  
Odd – Parity is odd.  
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Configuration Option Tables  
Table A-5. Management Port Options (3 of 3)  
Stop Bits  
Possible Settings: 1, 1.5, 2  
Default Setting: 1  
Provides the number of stop bits for the Management port.  
Stop Bits option appears when Port Type is set to Asynchronous.  
1, 1.5, or 2 – Selects the number of stop bits.  
Monitor DTR  
Possible Settings: Enable, Disable  
Default Setting: Enable  
Specifies monitoring of the Data Terminal Ready (DTR) control lead.  
Monitor DTR option appears when Port Type is set to Asynchronous.  
Enable – Standard operation of the DTR control lead.  
Disable – DTR is ignored. Some external device connections may require this setting.  
Routing Information Protocol  
Possible Settings: None, Proprietary  
Default Setting: None  
Specifies the routing protocol between devices through the Management port.  
Routing Information Protocol appears when Port Use is set for Net Link.  
None – No routing protocol; use None when the device connected to the Management  
port is not a Model 7610.  
Proprietary – Uses proprietary variant of RIP Version 1 to enable the routing of IP  
traffic between Paradyne devices.  
External Device Options for the Management Port  
To access the External Device Options screen, follow this menu selection  
sequence:  
Main Menu Configuration Load Configuration From Edit →  
User Interface External Device  
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Configuration Option Tables  
Table A-6. External Device Options (1 of 3)  
External Device Commands  
Possible Settings: Disable, AT, Other  
Default Setting: Disable  
Specifies the type of external device commands to be sent out the Management port.  
NOTE: The Management port DTR lead is monitored to detect loss of the external  
device connection. The external device DSR lead must be connected to the  
Management port’s DTR lead, via a standard EIA-232 crossover cable, and  
the device must be configured to wink DSR on disconnect.  
Disable – No external device commands will be sent out the Management port.  
No other options in this table will appear.  
AT – Standard AT commands are sent out the Management port to control an external  
device, such as a modem. When establishing a connection, the AT dial command “ATD”  
will precede the phone number from the dial directory.  
The next option, Dial-In Access, is available when External Device Commands is  
set to AT; no other options in this table will appear.  
Other – Commands configured by the user are sent out the Management port.  
Dial-In Access  
Possible Settings: Enable, Disable  
Default Setting: Disable  
Controls external device dial-in access through the Management port.  
Dial-In Access option appears when External Device Commands is set to AT.  
Enable – Answers incoming calls from an external device and establishes a connection  
to a remote terminal or IP network. Refer to the Port Use option in Table A-5 for the  
Management port functions.  
Disable – Incoming calls from an external device are not answered.  
Connect Prefix  
Possible Settings: ASCII Text, Clear  
Default Setting: [blank]  
The connect prefix and directory phone number are used to establish a connection. The  
connection can be initiated by the user or automatically established for dial out of ASCII  
alarms or SNMP traps.  
Connect Prefix option appears when External Device Commands is set to Other.  
ASCII Text – Places a prefix in front of the phone number. Enter a maximum of  
20 characters. Refer to the ASCII Characters section.  
Clear – Clears the field and sets to none.  
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Configuration Option Tables  
Table A-6. External Device Options (2 of 3)  
Connect Indication String  
Possible Settings: ASCII Text, Clear  
Default Setting: [blank]  
Determines if a connection is established. The DSU searches the Management port  
receive data stream for the connect indication string, and if not received within one  
minute, the connection times out. The connection can be initiated by the user or  
automatically established to dial out ASCII alarms or SNMP traps.  
Connects Indication String option appears when External Device Commands is set  
to Other.  
ASCII Text – Enter a maximum of 20 characters. Refer to the ASCII Characters section  
for valid ASCII characters and control sequences.  
Clear – Clears the field and sets to no string. The port’s RTS lead will be used to  
determine that a connection has been established.  
Escape Sequence  
Possible Settings: ASCII Text, Clear  
Default Setting: [blank]  
When an external device connection is established, the Escape Sequence can be used  
to switch an external device to command mode before sending the disconnect  
command. Refer to Escape Sequence Delay (sec) for delay before and after the Escape  
Sequence.  
Escape Sequence option appears when External Device Commands is set to  
Other.  
ASCII Text – Enter a maximum of 20 characters. Refer to the ASCII Characters section  
for valid ASCII characters and control sequences.  
Clear – Clears the field and sets the escape sequence to none.  
Escape Sequence Delay (sec)  
Possible Settings: None, 0.2, 0.4, 0.6, 0.8, 1.0  
Default Setting: None  
Amount of delay before sending the first character of the escape sequence and after  
sending the last character. The escape sequence is entered in the previous option.  
During this delay, no data is sent out the Management port.  
Escape Sequence Delay (sec) option appears when External Device Commands  
is set to Other.  
None – No Management port escape sequence delay.  
0.2 to 1.0 – Amount of delay in seconds before and after an escape sequence. The  
delay must be equal to or greater than the escape guard time of the external device.  
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Configuration Option Tables  
Table A-6. External Device Options (3 of 3)  
Disconnect String  
Possible Settings: ASCII Text, Clear  
Default Setting: [blank]  
The Disconnect String specifies the command used to disconnect an external device.  
The external device must be in command mode, so the Escape Sequence is always  
sent before the Disconnect String.  
Disconnect String option appears when External Device Commands is set to  
Other.  
ASCII Text – Enter a maximum of 20 characters. Refer to the ASCII Characters section  
for valid ASCII characters and control sequences.  
Clear – Clears the field and sets to no string. The Management port DSR lead is used  
to force a disconnect.  
Telnet Session Options  
To access the Telnet Session Options screen, follow this menu selection  
sequence:  
Main Menu Configuration Load Configuration From Edit →  
User Interface Telnet Session  
Table A-7. Telnet Session Options (1 of 2)  
Telnet Session  
Possible Settings: Enable, Disable  
Default Setting: Disable  
Specifies if the DSU will respond to a Telnet session request from a Telnet client on an  
interconnected IP network.  
Enable – Allows Telnet sessions between the unit and a Telnet client.  
Disable – No Telnet sessions allowed.  
Login Required  
Possible Settings: Enable, Disable  
Default Setting: Disable  
Used to secure access to the ATI through a Telnet session. Login IDs are created with a  
password and access level. Refer to the Creating a Login section of Chapter 4.  
Enable – Security is enabled. When access is attempted via Telnet, the user is  
prompted for a Login ID and password.  
Disable – No Login required for a Telnet session.  
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Configuration Option Tables  
Table A-7. Telnet Session Options (2 of 2)  
Session Access Level  
Possible Settings: Level 1, Level 2, Level 3  
Default Setting: Level 1  
The Telnet session access level is interrelated with the access level of the Login ID.  
Level 1 – This is the highest access level. Access level is determined by the Login ID. If  
Login Required is disabled, the session access is level 1.  
Level 2 – This access level overrides a Login ID with an access level 1. If a Login ID  
has an access level of 3, the effective access level is 3.  
Level 3 – This access level provides the effective access level and overrides the  
access level of a Login ID.  
NOTE: Refer to the ATI Access section of Chapter 4 for access level details.  
Inactivity Timeout  
Possible Settings: Enable, Disable  
Default Setting: Disable  
Provides automatic logoff of a Telnet session.  
Enable – The Telnet session terminates automatically after the Disconnect Time set in  
the next option.  
Disable – A Telnet session will not be closed due to inactivity.  
Disconnect Time (minutes)  
Possible Settings: range 1 – 60  
Default Setting: 5  
Number of minutes of inactivity before a Telnet session terminates automatically.  
Timeout is based on no keyboard activity.  
Disconnect Time (minutes) option appears when Inactivity Timeout is enabled.  
1 to 60 – The Telnet session is closed after the selected number of minutes.  
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Configuration Option Tables  
Alarms & Traps Options Menu  
For Alarms & Traps Options, refer to Table A-8. To access the Alarms & Traps  
Options screen, follow this menu selection sequence:  
Main Menu Configuration Load Configuration From Edit →  
Alarms & Traps  
Table A-8. Alarms & Traps Options (1 of 2)  
ASCII Alarm Messages  
Possible Settings: Enable, Disable  
Default Setting: Disable  
Controls the generation and routing of ASCII alarm messages to an ASCII terminal or  
printer connected to the Management port. Refer to the Alarm Messages section of  
Chapter 8.  
Enable – ASCII alarm messages are generated and sent out when the Management  
port is configured for Alarms in Management Port Options, Table A-5.  
The messages are sent out immediately if there is:  
– No DCE (e.g., modem or PAD) connected to the Management port and  
External Device Commands option is set to Disable in Table A-6 or  
– An active connection is already established via an external DCE.  
If an external device is connected to the Management port with no active  
connection, the message control is based on the next option, Alarm & Trap  
Dial-Out. External Device Commands must be configured for AT or Other in  
External Device Options, Table A-6.  
Disable – ASCII alarm messages are not generated or sent.  
Alarm & Trap Dial-Out  
Possible Settings: Enable, Disable  
Default Setting: Disable  
When there is no active connection, this option controls whether generating an ASCII  
alarm or SNMP trap results in automatic call initiation.  
Enable – Automatically places a call via the external device connected to the  
Management port.  
To send out SNMP traps, SNMP Management must be enabled in Table A-10.  
When Port Use is set to Net Link in Table A-5, up to ten SNMP traps are queued  
at the interface.  
The Primary Directory phone number is dialed. Refer to the Call Setup section of  
Chapter 3.  
Refer to the Call Retry option for handling of incomplete call attempts.  
Disable – Automatic call initiation is disabled and alarm messages are discarded.  
SNMP traps are retained until a connection is established.  
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A-20  
Configuration Option Tables  
Table A-8. Alarms & Traps Options (2 of 2)  
SNMP Trap Disconnect  
Possible Settings: Enable, Disable  
Default Setting: Enable  
Determines if a Management port external device connection is dropped after sending  
an SNMP trap.  
A call established to send out an ASCII alarm always disconnects automatically if  
the call was initiated automatically.  
Enable – The external device disconnects after sending out an SNMP trap.  
Disable – The external device remains connected and must be disconnected by remote  
modem or manually. This allows the NMS to poll the DSU after receiving an SNMP trap.  
Call Retry  
Possible Settings: Enable, Disable  
Default Setting: Disable  
Specify if an unsuccessful call is retried.  
Enable – The call is retried up to five times for each ASCII alarm and each SNMP trap.  
The following options, Dial-Out Delay Time (min) and Alternate Dial-Out Directory,  
affect the amount of time before a retry and the number of retries.  
Disable – No retry of an unsuccessful call.  
Dial-Out Delay Time (min)  
Possible Settings: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10  
Default Setting: 5  
This delay applies to both the number of minutes before a new call is initiated for a  
different alarm and the number of minutes between call retries. Refer to the previous  
option, Call Retry.  
1 to 10 – Number of minutes before a call is initiated or retried.  
Alternate Dial-Out Directory  
Possible Settings: Enable, Disable  
Default Setting: Disable  
Specifies whether an incomplete call initiated for an ASCII alarm or SNMP trap is  
attempted using the Alternate Directory phone number.  
Both Alarm & Trap Dial-Out and Call Retry options must be enabled.  
Enable – After attempting to reach the Primary Directory phone number five times, the  
alternate dial-out directory phone number is dialed five times.  
NOTE: The Alternate Directory phone number is dialed. Refer to the Call Setup  
section of Chapter 3.  
Disable – No alternate phone number is used.  
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Configuration Option Tables  
SNMP & Communication Options Menu  
The SNMP & Communications Menu includes the following:  
Communication Protocol Options, Table A-9  
General SNMP Management Options, Table A-10  
SNMP NMS Security Options, Table A-11  
SNMP Traps Options, Table A-12  
Communication Protocol Options  
To access the Communication Protocol Options screen, follow this menu  
selection sequence:  
Main Menu Configuration Load Configuration From Edit →  
SNMP & Communication Communication Protocol  
Table A-9. Communication Protocol Options (1 of 2)  
Management Port IP Address  
Possible Settings: 000.000.000.000 – 223.255.255.255, Clear  
Default Setting: 000.000.000.000  
Specifies the Internet Protocol address for the Management port.  
Port Use option must be set to Net Link in Table A-5 for the Management Port IP  
Address to be effective.  
000.000.000.000 – 223.255.255.255 – Sets the Management port IP address. The  
range for the first byte is 000 to 223, with the exception of 127. The range for the  
remaining three bytes is 000 to 255.  
Clear – Clears the IP address and sets to all zeros.  
NOTE: This IP address is also used if the Alternate Directory Phone Number is  
attempted and the Alternate Mgmt Port IP Address option is all zeros.  
Management Port Subnet Mask  
Possible Settings: 000.000.000.000 – 255.255.255.255, Clear  
Default Setting: 000.000.000.000  
Specifies the subnet mask needed to access the Management port.  
000.000.000.000 – 255.255.255.255 – Set the Management port subnet mask. The  
range for each byte is 000 to 255.  
Clear – Clears the subnet mask and sets to all zeros. When the subnet mask is all  
zeros, the device creates a default subnet mask based on the class of IP address:  
– Class A defaults to 255.000.000.000  
– Class B defaults to 255.255.000.000  
– Class C defaults to 255.255.255.000  
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Configuration Option Tables  
Table A-9. Communication Protocol Options (2 of 2)  
Management Port Link Protocol  
Possible Settings: PPP, SLIP  
Default Setting: PPP  
Specifies the link layer protocol for the Management port.  
Port Use option must be set to Net Link in Table A-5 for the Management Port Link  
Protocol to be effective.  
PPP – Point-to-Point Protocol.  
SLIP – Serial Line Internet Protocol.  
Port Type option must be set to Asynchronous in Table A-5.  
Alternate Mgmt Port IP Address  
Possible Settings: 000.000.000.000 – 223.255.255.255, Clear  
Default Setting: 000.000.000.000  
IP address to use when a call is initiated using the Alternate Directory Phone Number. If  
this address is all zeros, the Management Port IP Address is used.  
000.000.000.000 – 223.255.255.255 – Sets the alternate Management port IP address.  
The range for the first byte is 000 to 223, with the exception of 127. The range for the  
remaining three bytes is 000 to 255.  
Clear – Clears the IP address and sets to all zeros.  
Alternate Mgmt Port Subnet Mask  
Possible Settings: 000.000.000.000 – 255.255.255.255, Clear  
Default Setting: 000.000.000.000  
Specifies the alternate subnet mask used to access the Management port. Used with  
the previous option, Alternate Management Port IP Address.  
000.000.000.000 – 255.255.255.255 – Sets the management port alternate subnet  
mask. The range for each byte is 000 to 255.  
Clear – Clears the alternate subnet mask and sets to all zeros. The device creates a  
default alternate subnet mask based on the class of IP address:  
– Class A defaults to 255.000.000.000  
– Class B defaults to 255.255.000.000  
– Class C defaults to 255.255.255.000  
Default Network Destination  
Possible Settings: None, Mgmt, IMC  
Default Setting: None  
Specifies where the default network is connected. The routing protocol uses this option  
to route data with no specific route.  
WARNING: Unroutable data is discarded if the Default Network Destination  
becomes disabled or the option is set to None. Change the default  
network destination if the default route is not operational.  
None – No default network destination; unroutable data is discarded.  
Mgmt – The Management port is the default network destination.  
Port Use option must be set to Net Link in Table A-5.  
IMC – The In-Band Management Channel is the default network destination.  
In-Band Management Channel Rate(bps) option must be set to 1600, 4000, or  
8000 bps in Table A-2.  
7610-A2-GB20-10  
November 1997  
A-23  
Configuration Option Tables  
General SNMP Management Options  
To access the General SNMP Management Options screen, follow this menu  
selection sequence:  
Main Menu Configuration Load Configuration From Edit →  
SNMP & Communication General SNMP Management  
Table A-10. General SNMP Management Options (1 of 2)  
SNMP Management  
Possible Settings: Enable, Disable  
Default Setting: Disable  
Specifies if the DSU can be managed by an SNMP NMS or send out SNMP traps.  
Enable – Enables SNMP management.  
Disable – DSU does not respond to SNMP messages or send out SNMP traps.  
Community Name 1  
Possible Settings: ASCII Text, Clear  
Default Setting: Public  
Community Name of external SNMP Managers allowed access to the DSU’s MIB. This  
community name must be supplied by an external SNMP manager attempting to access  
a MIB object. Level of access is set in the next option, Name 1 Access.  
ASCII Text – Enter a maximum of 255 ASCII printable characters. Refer to the ASCII  
Characters section.  
Clear – Clears the Community Name 1 field.  
Name 1 Access  
Possible Settings: Read, Read/Write  
Default Setting: Read  
Set the access level for the Community Name 1 created in the previous option.  
Read – Allows a read-only access (i.e. SNMP Get) to accessible MIB objects.  
Read/Write – Allows both an SNMP Get and Set to MIB objects. Write access allowed  
to all MIB objects specified as read-write in the MIB RFC.  
Community Name 2  
Possible Settings: ASCII Text, Clear  
Default Setting: [blank]  
Community Name of external SNMP Managers allowed access to the DSU’s MIB. This  
community name must be supplied by an external SNMP manager attempting to access  
a MIB object. Level of access is set in the next option, Name 2 Access.  
ASCII Text – Enter a maximum of 255 ASCII printable characters. Refer to the ASCII  
Characters section.  
Clear – Clears the Community Name 2 field.  
November 1997  
7610-A2-GB20-10  
A-24  
Configuration Option Tables  
Table A-10. General SNMP Management Options (2 of 2)  
Name 2 Access  
Possible Settings: Read, Read/Write  
Default Setting: Read  
Set the access level for the Community Name 2 created in the previous option.  
Read – Allows a read-only access (i.e. SNMP Get) to accessible MIB objects.  
Read/Write – Allows both an SNMP Get and Set to MIB objects. Write access allowed  
to all MIB objects specified as read-write in the MIB RFC.  
SNMP NMS Security Options  
To access the SNMP NMS Security Options screen, follow this menu selection  
sequence:  
Main Menu Configuration Load Configuration From Edit →  
SNMP & Communication SNMP NMS Security  
Table A-11. SNMP NMS Security Options (1 of 2)  
NMS IP Validation  
Possible Settings: Enable, Disable  
Default Setting: Disable  
Determines if security checks are performed on the IP address of any SNMP  
management system that attempts to access the node.  
Enable – Performs security checking. Allows access only if the sending manager’s  
IP address has been entered on the NMS IP address list below.  
Disable – No security checking of incoming SNMP messages.  
Number of Managers  
Possible Settings: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10  
Default Setting: 1  
Set the number of SNMP managers that are authorized to send SNMP messages. The  
IP address of each SNMP management system must be entered in the next option.  
1 to 10 – Specifies the number of SNMP managers allowed to send SNMP messages.  
7610-A2-GB20-10  
November 1997  
A-25  
 
Configuration Option Tables  
Table A-11. SNMP NMS Security Options (2 of 2)  
NMS n IP Address  
Possible Settings: 000.000.000.000 – 223.255.255.255, Clear  
Default Setting: 000.000.000.000  
Enter an IP address for each of the managers set in the previous option. “n” is the  
number of the manager (1 to 10). Use the next option to establish the security level for  
each SNMP manager.  
NOTE: When an SNMP message is received from an IP address that does not  
match the IP address entries in this option, access is denied and an  
“authenticationFailure” trap is generated.  
000.000.000.000 – 223.255.255.255 – Sets the NMS IP address. The range for the first  
byte is 000 to 223, with the exception of 127. The range for the remaining three bytes is  
000 to 255.  
Clear – Clears the IP address and sets to all zeros.  
Access Level  
Possible Settings: Read, Read/Write  
Default Setting: Read  
Set the access level for each IP address created in the previous option.  
Read – Allows a read-only access (SNMP Get) to accessible MIB objects.  
Read/Write – Allows both an SNMP Get and Set to MIB objects. Write access allowed  
to all MIB objects specified as read-write in the MIB RFC. This access level is overriden  
by the Community Name’s access level for the SNMP Manager, if the Community Name  
access level is Read.  
November 1997  
7610-A2-GB20-10  
A-26  
 
Configuration Option Tables  
SNMP Traps Options  
To access the SNMP Traps Options screen, follow this menu selection sequence:  
Main Menu Configuration Load Configuration From Edit →  
SNMP & Communication SNMP Traps  
Table A-12. SNMP Traps Options (1 of 2)  
SNMP Traps  
Possible Settings: Enable, Disable  
Default Setting: Disable  
Controls the generation of SNMP trap messages. The options for addresses and types  
of traps are located in this table.  
SNMP Management must be enabled in Table A-10.  
Enable – SNMP trap messages are sent out to SNMP managers.  
If the destination is the Management port and an external device is attached to the  
Management port, the messages are sent immediately if there is an active  
connection. Automatic call initiation is based on the Alarm & Trap Dial-Out option  
in Table A-8. The destination is set with the Trap Manager Destination option.  
Disable – No SNMP trap messages are sent out.  
Number of Trap Managers  
Possible Settings: 1, 2, 3, 4, 5, 6  
Default Setting: 1  
Sets the number of SNMP management systems that will receive SNMP traps.  
1 to 6 – Number of trap managers. An NMS IP address is required for each manager.  
Trap Manager “n” IP Address  
Possible Settings: 000.000.000.000 – 223.255.255.255, Clear  
Default Setting: 000.000.000.000  
Specifies the Internet Protocol address used to identify each SNMP trap manager.  
n” represents the number of the manager (from 1 to 6).  
000.000.000.000 – 223.255.255.255 – Enter an address for each SNMP trap manager.  
The range for the first byte is 000 to 223, with the exception of 127. The range for the  
remaining three bytes is 000 to 255.  
Clear – Clears the IP address and sets to all zeros.  
Trap Manager “n” Destination  
Possible Settings: Default, Mgmt, IMC  
Default Setting: Default  
Provides the network destination path of each trap manager. “n” is the number of the  
manager (from 1 to 6).  
Default – Uses the address set in the Default Network Destination in Table A-9.  
Mgmt – The Management port is the network destination.  
Port Use option must be set to Net Link in Table A-5.  
IMC – The In-Band Management Channel is the default network destination.  
In-Band Management Channel Rate(bps) option must be set to 1600, 4000, or  
8000 bps in Table A-2.  
7610-A2-GB20-10  
November 1997  
A-27  
Configuration Option Tables  
Table A-12. SNMP Traps Options (2 of 2)  
General Traps  
Possible Settings: Disable, Warm, AuthFail, Both  
Default Setting: Both  
Determines which SNMP traps are sent to each trap manager.  
Disable – No general trap messages are sent.  
Warm – Sends trap message for “warmStart”.  
AuthFail – Sends trap message for “authenticationFailure”.  
Both – Sends both trap messages.  
NOTE: Refer to Standards Compliance for SNMP Traps, Appendix D.  
Enterprise Specific Traps  
Possible Settings: Enable, Disable  
Default Setting: Disable  
This option is used to determine if SNMP traps are generated for enterprise-specific  
events.  
Enable – SNMP traps are generated for enterprise-specific events.  
NOTE: Refer to the Traps: Enterprise Specific section of Appendix D.  
Disable – No enterprise-specific event traps are sent.  
Link Traps  
Possible Settings: Disable, Up, Down, Both  
Default Setting: Both  
This option is used to determine if SNMP traps are generated for link up and link down  
for one of the communication interfaces.  
Disable – No linkUp or linkDown SNMP traps are generated.  
Up – A linkUp trap is generated when the DSU recognizes that one of the  
communication interfaces is operational.  
Down – A linkDown trap is generated when the DSU recognizes a failure in one of the  
communication interfaces.  
Both – Sends trap messages for detection of both linkUp and linkDown.  
NOTE: Refer to the Traps: linkUp and linkDown section of Appendix D.  
Link Trap Interfaces  
Possible Settings: Network, Port, Both  
Default Setting: Both  
This option determines if the SNMP linkUp, SNMP linkDown, and interface-related  
enterprise-specific traps are generated for the DDS Network Interface and/or User Data  
(DTE) port.  
NOTE: These traps are not supported on the Management port and Terminal port.  
Network – SNMP trap messages are generated for the DDS network interface.  
Port – SNMP trap messages are generated for the User Data (DTE) port.  
Both – SNMP trap messages are generated on both the DDS network interface and the  
User Date (DTE) port.  
November 1997  
7610-A2-GB20-10  
A-28  
Configuration Option Tables  
ASCII Characters  
ASCII characters are divided into ASCII printable characters and ASCII  
non-printable control sequences.  
ASCII printable characters include:  
Numeric 0–9  
Upper or lower case A-Z  
< > space  
All ASCII symbols except the ^ (caret)  
ASCII printable characters are valid entries for the following:  
Device Name screen. Refer to the Entering Device and System Information  
section in Chapter 3.  
— Device Name field  
— System Name field  
— System Location field  
— System Contact field  
Call Directories screen. Refer to the Call Setup section in Chapter 3.  
— Phone Number field  
Administer Logins screen. Refer to the Creating a Login section in Chapter 4.  
— Login ID field  
— Password field  
External Device Options, Table A-6  
— Connect Prefix option  
— Connects Indication String option  
— Escape Sequence option  
— Disconnect String option  
General SNMP Management Options, Table A-10  
— Community Name 1 option  
— Community Name 2 option  
7610-A2-GB20-10  
November 1997  
A-29  
Configuration Option Tables  
Table A-13 contains non-printable ASCII characters. To form a control sequence,  
the caret (^) must be followed by one character. In addition to ASCII printable  
characters, these control sequences are also valid entries in the following:  
Call Directories screen. Refer to the Call Setup section in Chapter 3.  
— Phone Number field  
External Device Options, Table A-6  
— Connect Prefix option  
— Connects Indication String option  
— Escape Sequence option  
— Disconnect String option  
Table A-13. ASCII Non-Printable Characters  
Sequence ASCII  
Hex  
Sequence ASCII  
Hex  
^A or ^a  
^B or ^b  
^C or ^c  
^D or ^d  
^E or ^e  
^F or ^f  
^G or ^g  
^H or ^h  
^I or ^i  
SOH  
STX  
ETX  
EOT  
ENQ  
ACK  
BEL  
BS  
0x01  
0x02  
0x03  
0x04  
0x05  
0x06  
0x07  
0x08  
0x09  
^Q or ^q  
^ R or ^r  
^S or ^s  
^T or ^t  
^U or ^u  
^V or ^v  
DC1  
DC2  
DC3  
DC4  
NAK  
SYN  
0x11  
0x12  
0x13  
0x14  
0x15  
0x17  
0x17  
0x18  
0x19  
0x1A  
0x1B  
0x1C  
0x1D  
0x1E  
0x1F  
^W or ^w ETB  
^X or ^x  
^Y or ^y  
^Z or ^z  
^{ or ^[  
^\ or ^|  
^] or ^}  
^^ or ^~  
^-  
CAN  
EM  
HT  
^J or ^j  
LF or NL 0x0A  
VT 0x0B  
FF or NP 0x0C  
SUB  
ESC  
FS  
^K or ^k  
^L or ^l  
^M or ^m CR  
0x0D  
0x0E  
0x0F  
0x10  
GS  
^N or ^n  
^O or ^o  
^P or ^p  
SO  
SI  
RS  
US  
DLE  
November 1997  
7610-A2-GB20-10  
A-30  
 
Worksheets  
B
Overview  
The worksheets in this appendix summarize the configuration options accessed  
when you select Configuration on the Main Menu. The possible menu selections  
are displayed with the default settings and the possible settings.  
Configuration Worksheets  
System  
Configuration Option  
Operating Mode  
Settings  
Default in [Bold]  
[DDS], LADS  
DDS Line Rate (Kbps)  
LADS Timing  
56, 64CC, [Autobaud]  
[Internal], External, Receive  
56, [64]  
LADS Line Rate (Kbps)  
Test Timeout  
[Enable], Disable  
1–120, [10]  
Test Duration (min)  
Security Violation Alarm  
[Enable], Disable  
7610-A2-GB20-10  
November 1997  
B-1  
Worksheets  
Network Interface  
Configuration Option  
Settings  
Default in [Bold]  
Network-initiated DSU Loopback (64K CC) [Enable], Disable  
Data Scrambling (64K CC)  
V.54 Initiated DSU Loopback  
In-Band Management Channel Rate (bps)  
IMC IP Address  
Enable, [Disable]  
Enable, [Disable]  
[Disable], 1600, 4000, 8000  
[000.000.000.000] – 223.255.255.255  
[000.000.000.000] – 255.255.255.255  
None, [Proprietary]  
IMC Subnet Mask  
IMC Routing Information Protocol  
Cross Pair Detection Alarm  
No Signal Alarm  
[Enable], Disable  
[Enable], Disable  
Out of Service Alarm  
[Enable], Disable  
Out of Frame Alarm  
[Enable], Disable  
Excessive BPV Alarm  
[Enable], Disable  
In-Band Framing Alarm  
[Enable], Disable  
Data Port  
Configuration Option  
Invert Transmit Clock  
Port (DTE) Initiated Loopbacks  
Bilateral Loopback  
Carrier Control by RTS  
CTS Control  
Settings  
Default in [Bold]  
Enable, [Disable]  
[Disable], Local, Remote, Both  
Enable, [Disable]  
[Constant], Switched  
[Standard], Follow RTS, Forced On,  
Circuit Assurance  
RLSD Control  
DSR Control  
Monitor DTR  
[Standard], Forced On  
[Standard], Forced On, On During Test  
[Enable], Disable  
November 1997  
7610-A2-GB20-10  
B-2  
Worksheets  
User Interface  
Configuration Option  
Settings  
Default in [Bold]  
Terminal Port  
Data Rate (Kbps)  
Character Length  
Parity  
2.4, 4.8, [9.6], 14.4, 19.2, 28.8, 38.4  
7, [8]  
[None], Even, Odd  
[1], 1.5, 2  
Stop Bits  
Monitor DTR  
[Enable], Disable  
Enable, [Disable]  
[Level 1], Level 2, Level 3  
Enable, [Disable]  
range 1 – 60 [5]  
Login Required  
Port Access Level  
Inactivity Timeout  
Disconnect Time(minutes)  
Management Port  
Port Use  
[Net Link], Alarms, None  
Asynchronous, [Synchronous]  
[Internal], External  
2.4, 4.8, [9.6], 14.4, 19.2, 28.8, 38.4  
7, [8]  
Port Type  
Clock Source  
Data Rate (Kbps)  
Character Length  
Parity  
[None], Even, Odd  
[1], 1.5, 2  
Stop Bits  
Monitor DTR  
[Enable], Disable  
Routing Management Protocol  
External Device  
External Device Commands  
Dial-In Access  
[None], Proprietary  
[Disable], AT, Other  
Enable, [Disable]  
ASCII Text  
Connect Prefix  
Connects Indication String  
Escape Sequence  
Escape Sequence Delay (sec)  
Disconnect String  
Telnet Session  
Telnet Session  
ASCII Text  
ASCII Text  
[None], 0.2, 0.4, 0.6, 0.8, 1.0  
ASCII Text  
Enable, [Disable]  
Enable, [Disable]  
[Level 1], Level 2, Level 3  
Enable, [Disable]  
range 1 – 60 [5]  
Login Required  
Session Access Level  
Inactivity Timeout  
Disconnect Time (minutes)  
7610-A2-GB20-10  
November 1997  
B-3  
Worksheets  
Alarms & Traps  
Configuration Option  
ASCII Alarm Messages  
Alarm & Trap Dial-Out  
SNMP Trap Disconnect  
Call Retry  
Settings  
Default in [Bold]  
Enable, [Disable]  
Enable, [Disable]  
[Enable], Disable  
Enable, [Disable]  
1, 2, 3, 4, [5], 6, 7, 8, 9, 10  
Enable, [Disable]  
Dial-Out Delay Time (min)  
Alternate Dial-Out Directory  
Management  
Configuration Option  
Communication Protocol  
Management Port IP Address  
Management Port Subnet Mask  
Management Port Link Protocol  
Alternate Mgmt Port IP Address  
Alternate Mgmt Port Subnet Mask  
Default Network Destination  
General SNMP Management  
SNMP Management  
Settings  
Default in [Bold]  
[000.000.000.000] – 223.255.255.255  
[000.000.000.000] – 255.255.255.255  
[PPP], SLIP  
[000.000.000.000] – 223.255.255.255  
[000.000.000.000] – 255.255.255.255  
[None], Mgmt, IMC  
[Disable], Enable  
ASCII Text, [Public]  
[Read], Read/Write  
ASCII Text  
Community Name 1  
Name 1 Access  
Community Name 2  
Name 2 Access  
[Read], Read/Write  
SNMP NMS Security  
NMS IP Validation  
Enable, [Disable]  
Number of Managers  
NMS “n” IP Address  
[1], 2, 3, 4, 5, 6, 7, 8, 9, 10  
[000.000.000.000] – 223.255.255.255  
[Read], Read/Write  
Access Level  
SNMP Traps  
SNMP Traps  
Enable, [Disable]  
Number of Trap Managers  
Trap Manager “n” IP Address  
Trap Manager “n” Destination  
General Traps  
[1], 2, 3, 4, 5, 6  
[000.000.000.000] – 223.255.255.255  
[Default], Mgmt, IMC  
Disable, Warm, AuthFail, [Both]  
Enable, [Disable]  
Enterprise Specific Traps  
Link Traps  
Disable, Up, Down, [Both]  
Network, Port, [Both]  
Link Trap Interfaces  
November 1997  
7610-A2-GB20-10  
B-4  
 
MIB Descriptions  
C
MIB Description Overview  
The following sections show generally how the SNMP DSU supports MIB objects  
relative to their RFC description. MIBs are available on the World Wide Web site  
listed on Page A (the reverse side of the title page of this document).  
MIB II – RFC 1213 and RFC 1573  
The unit supports the following MIB II object groups as defined in RFC 1213 and  
RFC 1573:  
H
H
System Group Objects  
Interfaces Group Objects – Supported for the DDS network interface, User  
Data (DTE) port, Terminal port, Management port, and the IMC as defined in  
RFC 1573, the Evolution of the Interfaces Group.  
Interfaces Group Objects  
Extension to Interface Table (ifXTable)  
Interface Stack Group Objects  
Interface Test Group Objects  
H
H
H
H
H
IP Group Objects  
ICMP (Internet Control Management Protocol) Group  
TCP (Transmission Control Protocol) Group  
UDP (User Datagram Protocol) Group  
Transmission Group Objects. Supported on the DDS network interface using  
the DDS Enterprise MIB. Supported on the User Data (DTE) port, Terminal  
port, and Management port using the RS-232-like MIB.  
H
SNMP Group  
7610-A2-GB20-10  
November 1997  
C-1  
MIB Descriptions  
The following MIB II groups are not supported:  
H
H
Address Translation Group  
Exterior Gateway Protocol (EGP) Group  
RS-232-Like MIB – RFC 1659  
The unit supports RS-232-Like MIB, RFC 1659:  
H
H
H
H
H
Number of RS-232-Like Ports Object.  
General Port Table Objects  
Asynchronous Port Table Objects. Not supported for the User Data port.  
Synchronous Port Table Objects. Not supported for the Terminal port.  
Input Signal Table Objects. Not supported for the Management port or  
Terminal port.  
H
Output Signal Table Objects. Not supported for the Management port or  
Terminal port.  
Enterprise MIB Objects  
The following Paradyne Enterprise MIB Objects are supported by the unit:  
H
H
H
H
H
H
Device Configuration Variable  
Port Usage Table, attp-devPortUsage (attp-interfaces 3)  
DDS Interface Specific Definitions, attp-dds (attp-interfaces 2)  
Device Security, attp-security (att-common 8)  
Device Traps, attp-traps (att-common 9)  
Device Control, attp-control (attp-common 10)  
November 1997  
7610-A2-GB20-10  
C-2  
MIB Descriptions  
System Group  
System Group objects are fully supported by the unit.  
Table C-1. System Group Objects  
Object  
Description  
Setting/Contents  
sysDescr  
(system 1)  
Provides a full name and  
version identification for the  
system’s hardware and  
software.  
PARADYNE DDS Leased Line DSU;  
Model: 7610-A1-201;  
S/W Release: yy.yy.yy;  
H/W Revision: zzzz-zzz;  
Serial Number: sssssss  
sysObjectID Identifies the network  
1.3.6.1.4.1.1795.1.14.2.5.1.1  
(system 2)  
management subsystem.  
sysContact  
(system 4)  
Provides the textual  
identification of the contact  
person for this managed unit.  
ASCII character string, as set by the  
user.  
1
sysName  
(system 5)  
Provides an  
administratively-assigned  
name for this managed unit.  
ASCII character string, as set by the  
user.  
1
sysLocation Provides the physical location ASCII character string, as set by the  
1
(system 6)  
for this managed unit.  
user.  
sysServices Functionality supported:  
Object is set to 1+2+4+8 (15).  
(system 7)  
physical (1) – Layer 1  
functionality for all  
interfaces.  
datalink/subnetwork (2) –  
Layer 2 functionality  
(SLIP/PPP) for all  
management links.  
internet (4) – Layer 3  
functionality (IP) for all  
management links.  
end-to-end (8) – Layer 4  
functionality (TCP/UDP)  
for all management links.  
1
The unit supports a 127-character string for this object. An error message is sent to  
the NMS if an attempt is made to write (set) more than 127 characters.  
7610-A2-GB20-10  
November 1997  
C-3  
MIB Descriptions  
Interfaces Group  
The Interfaces Group as defined in RFC 1573 consists of an object indicating the  
number of interfaces supported by the unit and an interface table containing an  
entry for each interface. Since RFC 1573 is an SNMPv2 MIB, it is converted to  
SNMPv1 for support by the unit. The following table provides clarification for  
objects contained in the Interfaces group when it is not clear how the object  
definition in RFC 1573 is supported by the unit.  
Table C-2. Interfaces Group Objects (1 of 4)  
Object  
Description  
Setting/Contents  
ifNumber  
(interfaces 1)  
Specifies the number  
of interfaces for this  
unit in the ifTable.  
5
ifIndex  
(ifEntry 1)  
Provides the index to  
the interface table  
(ifTable) and to other  
tables as well.  
Indexes and values:  
1 – Management port  
2 Terminal port  
4 – DDS network interface  
6 – User Data (DTE) port  
7 – In-band Management Channel  
When an unsupported  
index is entered (e.g.,  
3 and 5), noSuchName  
is returned.  
ifDescr  
(ifEntry 2)  
Supplies text for each  
Interface:  
Text Strings for each interface:  
Management  
Terminal  
“Management Port; PARADYNE DDS  
Leased Line DSU; Hardware Version  
[Hardware Revision]”; Software Version:  
[Software Revision].  
Terminal Port; PARADYNE DDS Leased  
Line DSU; Hardware Version [Hardware  
Revision]”; Software Version: [Software  
Revision].  
DDS Network  
User Data Port  
“DDS Network; PARADYNE DDS Leased  
Line DSU; Hardware Version [Hardware  
Revision]”; Software Version: [Software  
Revision].  
“User Data Port; PARADYNE DDS Leased  
Line DSU; Hardware Version [Hardware  
Revision]”; Software Version: [Software  
Revision].  
In-band  
Management  
Channel  
“In-band Management Channel;  
PARADYNE DDS Leased Line DSU;  
Hardware Version [Hardware Revision]”;  
Software Version: [Software Revision].  
November 1997  
7610-A2-GB20-10  
C-4  
MIB Descriptions  
Table C-2. Interfaces Group Objects (2 of 4)  
Object  
Description  
Setting/Contents  
ifType  
(ifEntry 3)  
Identifies the interface  
type based on the  
physical/link  
Supported values:  
other(1) – Used for the DDS network.  
protocol(s), right below  
the network layer.  
ppp(23) – Used for the In-band  
Management Channel and for the  
Management port, when configured for  
PPP.  
slip(28) – Used for Management port,  
when configured for SLIP.  
rs232(33) – Used for the Terminal port  
and the Management port, when not  
configured as Net Link.  
v35(45) – Used for the User Data port.  
ifMtu  
(ifEntry 4)  
Identifies the largest  
datagram that can be  
sent or received on an  
interface (Management  
port or IMC).  
Number of octets.  
ifSpeed  
(ifEntry 5)  
Provides the current  
bandwidth for the  
interface in bits per  
second.  
Management port – Configured data rate  
for the port.  
Terminal port – Configured data rate for  
the port.  
DDS – Line rate of 56,000 or 64,000 bps,  
reflecting the line rate detected by the unit.  
User data (DTE) port – Current data rate of  
the port (DDS operating rate minus IMC  
rate).  
In-band Management Channel –  
Configured data rate for the In-band  
Management Channel.  
ifAdminStatus Provides interface  
up(1) – The interface is enabled.  
(ifEntry 7)  
status. Supported as  
read-only.  
down(2) – The interface is disabled.  
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November 1997  
C-5  
MIB Descriptions  
Table C-2. Interfaces Group Objects (3 of 4)  
Object  
Description  
Setting/Contents  
ifOperStatus  
(ifEntry 8)  
Specifies the current  
operational state of the  
interface.  
Management port. When configured as  
Net Link, up(1) and down(2) are based on  
the current state of the link-layer protocol.  
When configured for Alarms, the interface  
is always up(1). Never in testing(3) state.  
Terminal port. Always up(1); never in  
testing(3) state.  
User Data Port  
up(1) – No alarms  
down(2) – Alarms  
testing(3) Test active  
DDS Network Interface  
up(1) – DTR on, if supported by the  
DTE  
down(2) – DTR off, if supported by the  
DTE  
testing(3) Test active  
In-band Management Channel. When  
enabled, up and down are based on the  
current state of the physical and link layer  
protocols.  
up(1) – Operational and no active test  
on the DDS network interface  
down(2) – Not operational or disabled  
testing(3) Test active on DDS network  
interface  
ifLastChange  
(ifEntry 9)  
Indicates the amount  
of time the interface  
has been up and  
running.  
Contains the value of sysUpTime object at  
the time the interface entered its current  
operational state.  
Collects input statistics An integer number.  
on data received by  
ifInOctets  
(ifEntry 10)  
the interface.  
ifInUcastPkts  
(ifEntry 11)  
Applies to the IMC and  
the Management port,  
if configured for Net  
Link. When the  
ifInDiscards  
(ifEntry 13)  
Management port is  
not configured as a Net  
Link, these statistics  
will not be collected,  
and an error status will  
be sent if access is  
attempted.  
ifInErrors  
(ifEntry 14)  
ifInUnknown  
Protos  
(ifEntry 15)  
November 1997  
7610-A2-GB20-10  
C-6  
MIB Descriptions  
Table C-2. Interfaces Group Objects (4 of 4)  
Object  
Description  
Setting/Contents  
Collects output  
statistics on data  
received by the  
interface.  
An integer number.  
ifOutOctets  
(ifEntry 16)  
ifOutUcastPkts  
(ifEntry 17)  
Applies to the IMC and  
the Management port,  
if configured for Net  
Link. When the  
Management port is  
not configured as a Net  
Link, these statistics  
will not be collected,  
and an error status will  
be sent if access is  
attempted.  
ifOutDiscards  
(ifEntry 19)  
ifOutErrors  
(ifEntry 20)  
Extension to Interface Table (ifXTable)  
This extension contains additional objects for the interface table. Supports only  
the following objects.  
Table C-3. Extension to Interface Table (ifXTable)  
Object  
Description  
Setting/Contents  
ifName  
(ifXEntry 1)  
Provides name of the  
interface.  
Interface text strings:  
Management Port  
Terminal Port  
DDS Network  
User Data Port  
In-band Management Channel  
ifLinkUpDown- Indicates whether the link is Only supports DDS network and User  
TrapEnable  
(ifXEntry 14)  
up or down, or enterprise-  
specific traps should be  
generated.  
data port.  
SNMP Traps must be enabled for the  
unit. See SNMP Traps Option,  
Table A-12.  
ifHighSpeed  
(ifXEntry 15)  
Reflects the ifSpeed setting This object is supported as read-only.  
for the interface.  
ifConnector-  
Present  
(ifXEntry 17)  
Indicates whether there is a true(1) – Will always have this value for  
physical connector for the  
interface.  
the DDS network, Management port,  
Terminal port, and User Data port.  
false(2) –Will always have this value for  
the In-band Management Channel.  
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MIB Descriptions  
Interface Stack Group  
The Interface Stack Group is used by the unit to show the relationship between a  
logical interface and a physical interface. The following table provides clarification  
for objects contained in the Interface Stack group when it is not clear how the  
object definition in RFC 1573 is supported by the unit.  
Table C-4. Interface Stack Group Objects  
Object  
Description  
Setting/Contents  
ifStackHigher- Provides the index that  
Layer corresponds to the higher  
(ifStackEntry1) sublevel specified by  
ifStackLowerLayer.  
When the In-band Management Channel  
is enabled, this object for the DDS  
network interface is set to the ifIndex of  
the In-band Management Channel. All  
other ifStackHigherLayer objects will  
have a value of zero.  
ifStackLower-  
Layer  
(ifStackEntry2) sublevel specified by  
ifStackHigherLayer.  
Provides the index that  
corresponds to the lower  
When the In-band Management Channel  
is enabled, this object for the In-band  
Management Channel is set to the  
ifIndex of the DDS network interface. All  
other ifStackLowerLayer objects will  
have a value of zero.  
ifStackStatus  
(ifStackEntry3) status compared to the  
Specifies the stack group’s  
When ifStackStatus set to active –  
maps to ifOperStatus set to up(1) or  
testing(3).  
interface’s ifOperStatus.  
Supported as a read-only  
variable.  
When ifStackStatus set to not in  
service – maps to ifOperStatus set to  
down(2).  
Interface Test Table  
The unit uses the Interface Test table to provide access to additional tests such  
as loopbacks and pattern tests, which are not included in the Interfaces Group of  
MIB II.  
Table C-5. Interface Test Group Objects (1 of 2)  
Object  
Description  
Setting/Contents  
ifTestID  
(ifTestEntry 1)  
Provides a unique identifier Set by an SNMP Manager before the  
for the current request of test is started. The unit then increments  
the interface’s test. Ensures the previous value. The value is then  
that the results of the test  
are for that request. This  
handles the rare condition  
where another SNMP  
Manager starts a test  
immediately after  
checked after the test has completed.  
completion of a previous  
test, but before the  
previous test results are  
received by the first SNMP  
manager.  
November 1997  
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C-8  
MIB Descriptions  
Table C-5. Interface Test Group Objects (2 of 2)  
Object  
Description  
Setting/Contents  
ifTestStatus  
(ifTestEntry2)  
Indicates the test status of  
the interface.  
Set to inUse(2) by an SNMP  
Manager before a test is started.  
Set to notInUse(1) by the unit when  
the test has completed. Also set to  
notInUse(1) by the unit if the SNMP  
Manager fails to set an ifTestType  
within 5 minutes.  
ifTestType  
(ifTestEntry 3)  
A control variable used to  
start/stop user-initiated  
tests on the interface.  
Provides the following  
capabilities:  
The following objects use identifiers to  
control tests on the User Data port  
interface:  
noTest (0 0) – Stops the test in  
progress on the interface.  
Start/stop user data port  
loopback  
testLoopDTE (ifTestType 2) – Starts  
a Local Loopback (DTE) on the  
interface.  
Start/stop send pattern  
on the user data port  
testMon511 (ifTestType4) – Starts a  
Start/stop the monitor  
test pattern on the user  
data port  
Monitor 511 test on the interface.  
testSend511 (ifTestType6) – Starts a  
Send 511 test on the interface.  
ifTestCode  
(ifTestEntry 5)  
Contains a code which is  
more specific about the test  
results.  
Supports the following values:  
none (ifTestCode 1) – No further  
information is available. Used for  
send pattern/code and loopback tests.  
inSyncNoBitErrors (ifTestCode 2) –  
A 511 monitor pattern test has  
synchronized on the pattern and has  
not detected any bit errors.  
inSyncWithBitErrors  
(ifTestCode 3) – A 511 monitor pattern  
test has synchronized on the pattern  
and has detected bit errors.  
notInSync (ifTestCode 4) – A 511  
monitor test pattern has not  
synchronized on the requested  
pattern.  
ifTestOwner  
(ifTestEntry 6)  
Used by an SNMP  
Manager to identify the  
The SNMP Manager sets the object to  
its IP address when setting ifTestID and  
current owner of the test for ifTestStatus.  
the interface.  
7610-A2-GB20-10  
November 1997  
C-9  
MIB Descriptions  
Generic Receive Address Table  
Not supported by the unit.  
IP Group  
The Internet Protocol Group objects are supported by the unit for all data paths  
that are currently configured to carry IP data to/from the unit. All of the objects in  
the IP Group, except for the IP Address Translation table, are fully supported.  
The following table provides clarification for objects contained in the IP group  
when it is not clear how the object definition in MIB II is supported by the unit.  
Table C-6. IP Group Objects (1 of 2)  
Object  
Description  
Setting/Contents  
ipForwarding  
(ip1)  
Specifies whether the unit  
is acting as an IP gateway  
for forwarding of datagram  
received by, but not  
Supports only the following value:  
forwarding(1) – The unit is acting as  
a gateway.  
addressed to, the unit.  
ipAddrTable  
(ip20)  
The address table.  
Supported.  
ipAdEntAddr  
An IP address supported by Indexes for tables must be unique.  
(ipAddrEntry 1) the unit which serves as an Therefore, only one ifIndex can be  
index to the address table.  
displayed for each IP address supported  
by the device. If the same IP address is  
configured for multiple interfaces, or for  
default IP addresses, the ipAddrTable  
will not display all of the interfaces that  
support a particular IP address.  
ipAdEntIfIndex If this object has a greater  
(ipAddrEntry 2) value than the ifNumber,  
then it refers to a  
None  
proprietary interface not  
currently implemented by  
the MIB II Interface Group.  
ipRouteTable  
(ip21)  
Supported as read/write.  
However, use caution when  
adding or modifying routes.  
To delete a route, set object to invalid.  
To modify a route, change fields in the  
desired entry of the routing table  
If it is absolutely necessary (indexed by ipRouteDest).  
to add a route, the route  
To add a route, specify values for a table  
should only be added to the  
connected device (device  
closest to the destination).  
Internal routing will continue  
the route to the other  
devices.  
entry for which the index (ipRouteDest)  
does not already exist. The following  
objects must be specified:  
ipRouteDest – Serves as an index to  
the routing table. Only one route per  
destination can appear in the table. To  
ensure that no duplicate destinations  
appear in the routing table, the  
ipRouteDest object will be treated as  
described in the IP Forwarding Table  
MIB (RFC 1354).  
November 1997  
7610-A2-GB20-10  
C-10  
MIB Descriptions  
Table C-6. IP Group Objects (2 of 2)  
Object  
Description  
Setting/Contents  
ipRouteTable  
(ip21)  
(Continued)  
ipRouteIfIndex – If this object has a  
greater value than the ifNumber, then  
it refers to a proprietary interface not  
currently implemented by the MIB II  
Interface Group. Do not delete route  
entries with an unrecognized  
ipRouteIfIndex. When setting this  
object via SNMP, the ipRouteIfIndex  
value can only assume an appropriate  
value of IfIndex defined for a  
particular device type.  
Objects that will be set to the default  
value if not specified in the Set PDU  
used to add a route:  
ipRouteMetric1 – Defaults to 1 hop.  
ipRouteType – Defaults to indirect.  
ipRouteMask – Defaults to what is  
specified in the MIB description.  
Objects that are not used by this unit:  
ipRouteMetric2, ipRouteMetric3,  
ipRoutemetric4, ipRoutemetric5 –  
Default to –1.  
ipRouteNextHop – Defaults to 0.0.0.0.  
Do not specify the following read-only  
objects in the Set PDU used to add a  
route:  
ipRouteProto – Set to netmgmt(3) by  
the software. May have the following  
values:  
other(1) Temporary route added  
by IP.  
local(2) – Route added or changed  
due to User configuration.  
netmgmt(3) – Route added or  
changed by SNMP set.  
icmp(4) – Route added or changed  
by ICMP.  
rip(8) – Route added or changed  
by RIP (or similar proprietary  
protocol).  
ipRouteAge – Reflects the value of  
the time-to-live for the route (in  
seconds). Defaults to 999 (permanent  
route).  
ipRouteInfo – Unused; set to {0, 0}.  
7610-A2-GB20-10  
November 1997  
C-11  
MIB Descriptions  
ICMP Group  
The ICMP (Internet Control Management Protocol) Group objects are fully  
supported.  
TCP Group  
The TCP Group objects are fully supported, with the exception of tcpConnState  
object, which will be read-only, since deleteTCB (12) is not supported and is the  
only value which can be set.  
UDP Group  
The UDP Group objects are fully supported.  
Transmission Group  
Objects in the Transmission Group are supported on the DDS network interface,  
User Data port, Management port, and Terminal port. These objects are defined  
through other Internet-standard MIB definitions rather than within MIB II.  
Table C-7. Transmission Group Objects  
Object  
Description  
rs232  
(transmission 33)  
Supported on the User Data port, Management port, and  
Terminal port. Defined by the RS-232-like MIB (RFC 1659).  
enterprise  
(transmission 22)  
Supported on the DDS network interface by Paradyne  
Enterprise MIB.  
SNMP Group  
The SNMP Group objects that apply to a management agent are fully supported.  
The following objects apply only to an NMS and return a zero value if accessed.  
snmpInTooBig (snmp 8)  
snmpInNoSuchNames (snmp 9)  
snmpInBadValues (snmp 10)  
snmpInReadOnlys (snmp 11)  
snmpInGenErrs (snmp 12)  
snmpInGetResponses (snmp 18)  
snmpInTraps (snmp 19)  
snmpOutGetRequests (snmp 25)  
snmpOutGetNexts (snmp 26)  
snmpOutSetRequests (snmp 27)  
November 1997  
7610-A2-GB20-10  
C-12  
MIB Descriptions  
RS-232-Like MIB, RFC 1659  
Supported for the User Data port, the Management port, and the Terminal port.  
RFC 1659 is an SNMPv2 MIB, but is converted to an SNMPv1 MIB to support  
this unit. This MIB consists of one object and five tables.  
Number of RS-232-Like Ports Object  
Supported as documented in the RFC.  
General Port Table Objects  
The General Port Table Objects contains configuration options for the  
RS-232-Like interfaces. Clarification for objects contained in this table as it  
applies to the unit is provided below.  
Table C-8. General Port Table Objects (1 of 2)  
Object  
Description  
Setting/Contents  
rs232PortType  
Identifies the port hardware Supports only the following values:  
(rs232PortEntry 2) type.  
rs232(2) – Identifies the  
Management port and Terminal port.  
v35(5) – Identifies the synchronous  
User Data port which is compatible  
with the V.35 standard.  
rs232PortInSig  
Number  
(rs232PortEntry 3) signal table) that can be  
detected.  
Contains the number of  
input signals (in the input  
The value is 2 for synchronous user  
data port and 0 for both the  
Management port and Terminal port.  
rs232PortOutSig  
Number  
(rs232PortEntry 4) signal table) that can be  
asserted.  
Contains the number of  
output signals (in the output Data port and 0 for both the  
The value is 3 for synchronous User  
Management port and Terminal port.  
rs232PortInSpeed Contains the port’s input  
(rs232PortEntry 5) speed in bits per second.  
Supports the following speeds for  
the:  
User data port: 64,000, 62,400,  
60,000, 56,000, 54,400, 52,000,  
1
48,000.  
2
2
Management port: 2400 , 4800 ,  
9600, 14,400, 19,200, 28,800,  
38,400.  
Terminal port: 2400, 4800,  
9600,14,400, 19,200, 28,800,  
38,400.  
1
The User Data port speed is a read-only value that can only differ from the DDS  
network speed if the In-band Management Channel is enabled.  
2
This speed is only valid when the port is configured for asynchronous operation.  
7610-A2-GB20-10  
November 1997  
C-13  
MIB Descriptions  
Table C-8. General Port Table Objects (2 of 2)  
Object  
Description  
Setting/Contents  
rs232PortOut  
Speed  
Contains the port’s output  
speed in bits per second.  
Supports the following speeds for  
the:  
(rs232PortEntry 6)  
The rs232PortOutSpeed  
object has the same values  
as the rs232PortInSpeed  
object.  
User data port: 64,000, 62,400,  
60,000, 56,000, 54,400, 52,000,  
48,000.  
1
2
2
Management port: 2400 , 4800,  
9600, 14,400, 19,200, 28,800,  
38,400.  
Terminal port: 2400, 4800,  
9600,14,400, 19,200, 28,800,  
38,400.  
1
The User Data port speed is a read-only value that can only differ from the DDS  
network speed if the In-band Management Channel is enabled.  
2
This speed is only valid when the port is configured for asynchronous operation.  
The following are not supported:  
rs232PortInFlowType (rs232PortEntry 7)  
rs232PortOutFlowType (rs232PortEntry 8)  
Asynchronous Port Table Objects  
The Asynchronous Port Table Objects contains an entry for the Management port  
when the port is configured for asynchronous operation and for the Terminal port.  
For this unit, entries in the table that are counters (rs232AsyncPortEntry 6–8) are  
used to collect statistics only and are not supported.  
Table C-9. Asynchronous Port Table Objects (1 of 2)  
Object  
Description  
Setting/Contents  
rs232AsyncPort Specifies the number of bits Supports only the following values:  
Bits  
(rs232Async  
PortEntry 2)  
in a character.  
7 – 7-bit characters  
8 – 8-bit characters  
rs232AsyncPort Specifies the number of  
Supports only the following values:  
one(1) – One stop bit  
StopBits  
stop bits supported.  
(rs232Async  
PortEntry 3)  
two(2) – Two stop bits  
one-and-half(3) – One and a half stop  
bits  
November 1997  
7610-A2-GB20-10  
C-14  
MIB Descriptions  
Table C-9. Asynchronous Port Table Objects (2 of 2)  
Object Description Setting/Contents  
rs232AsyncPort Specifies the type of parity  
Supports only the following values:  
none(1) – No parity bit  
odd(2) – Odd parity  
Parity  
used by the port.  
(rs232Async  
PortEntry 4)  
even(3) – Even parity  
rs232AsyncPort Specifies the ability to  
Supports only the following values:  
AutoBaud  
(rs232Async  
PortEntry 5)  
automatically sense the  
input speed of the port.  
disabled(2) – Does not support  
Autobaud.  
Synchronous Port Table Objects  
The Synchronous Port Table Objects contains an entry for the synchronous user  
data port and the Management port when this port is configured for synchronous  
operation. For this unit, entries in the table that are counters (rs232SyncPortEntry  
3–7) are used to collect statistics only and are not supported. Clarification for  
objects contained in this table as it applies to the unit is provided below.  
Table C-10. Synchronous Port Table Objects (1 of 2)  
Object  
Description  
Setting/Contents  
rs232SyncPort Specifies the clock source  
Supports only the following values:  
ClockSource  
(rs232Sync  
PortEntry 2)  
for the port.  
internal(1) – The port uses an internal  
clock.  
split(3) – The port uses an external  
transmit clock and internal receive clock.  
rs232SyncPort Specifies whether this  
Supports only the following value:  
Role  
(rs232Sync  
PortEntry 8)  
device interface is a DTE or  
DCE.  
dce(2) – The port acts as a DCE.  
rs232SyncPort Specifies the bit encoding  
Supports only the following value:  
Encoding  
(rs232Sync  
PortEntry 9)  
technique that this port  
uses.  
nrz(1) – The port uses non-return to  
zero encoding.  
rs232SyncPort Specifies the method used  
Supports only the following values:  
RTSControl  
(rs232Sync  
PortEntry 10)  
to control the RTS signal.  
Refer to Data Port Options,  
Table A-3.  
controlled(1) – For User Data port, this  
value is used when the Data Port option  
Carrier Control by RTS is set to  
Switched.  
constant(2) – For User Data port, this  
value is used when the Data Port option  
Carrier Control by RTS is set to  
Constant. This is the only valid value for  
the Management port.  
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November 1997  
C-15  
MIB Descriptions  
Table C-10. Synchronous Port Table Objects (2 of 2)  
Object  
Description  
Setting/Contents  
rs232SyncPort Reports the interval (in  
RTSCTSDelay milliseconds) that the port  
Supports only the following read-only  
values:  
(rs232Sync  
PortEntry 11)  
waits after RTS is asserted  
before asserting CTS.  
0 – The port does not have to wait. Only  
valid for Management port.  
integer number – represents  
milliseconds. It is only valid for the user  
data port, when Carrier Control by RTS  
is set to Switched and corresponds to  
approximately 21 bit time intervals at the  
operating DDS rate.  
rs232SyncPort Specifies the port’s mode of Supports only the following value:  
Mode  
(rs232Sync  
PortEntry 12)  
data transfer.  
fdx(1) – Full-duplex  
The following are not supported:  
rs232SyncPortIdle Pattern (rs232SyncPortEntry 13)  
rs232SyncPortMinFlags (rs232SyncPortEntry 14)  
Input Signal Table Objects  
The Input Signal Table Objects contains entries for the input signals that can be  
detected by the unit for the synchronous user data port. Clarification for objects  
contained in this table as it applies to the unit is provided below.  
Table C-11. Input Signal Table Objects  
Object  
Description  
Setting/Contents  
rs232InSigName  
(rs232InSigEntry 2) of a hardware input signal.  
Contains the identification  
Supports only the following values:  
rts(1) – Request To Send  
dtr(4) – Data Terminal Ready  
rs232InSigState  
Contains the current signal Supports only the following values:  
(rs232InSigEntry 3) state.  
on(2) – The signal is asserted  
off(3) – The signal is deasserted  
rs232InSigChanges Indicates the number of  
(rs232InSigEntry 4) times that a signal has  
changed from on to off, or  
The object is incremented each  
time that the signal is sampled  
(every 100 ms) and the signal state  
is different from the previous state.  
off to on.  
November 1997  
7610-A2-GB20-10  
C-16  
MIB Descriptions  
Output Signal Table Objects  
The Output Signal Table Objects contains entries for the output signals that can  
be asserted by the unit, for the synchronous User Data port. Clarification for  
objects contained in this table as it applies to the unit is provided below.  
Table C-12. Output Signal Table Objects  
Object  
Description  
Setting/Contents  
rs232OutSigName  
Contains the identification  
Supports only the following  
(rs232OutSigEntry 2) of a hardware output signal. values:  
cts(2) – Clear To Send  
dsr(3) – Data Set Ready  
dcd(6) – Received Line Signal  
Detector  
rs232OutSigState  
(rs232OutSigEntry 3) state.  
Contains the current signal Supports only the following  
values:  
on(2) – The signal is asserted  
off(3) – The signal is deasserted  
rs232OutSigChanges Indicates the number of  
(rs232OutSigEntry 4) times that a signal has  
changed from on to off, or  
Increments the object each time  
that the signal is sampled (every  
100 ms) and the signal state is  
different from the previous state.  
off to on.  
7610-A2-GB20-10  
November 1997  
C-17  
 
MIB Descriptions  
Enterprise MIB Objects  
The following lists the Paradyne Enterprise specific MIB Objects supported by the  
unit.  
Device Configuration Variable (pdn-common 7)  
The variable devConfigAreaCopy in the devConfigArea group is supported. This  
variable allows the entire contents of one configuration area to be copied into  
another configuration area. The unit only supports the following values.  
Table C-13. Device Configuration Variable  
Object  
Description  
Setting/Contents  
devConfig A “get” of this object will always return noOp. noOp(1)  
AreaCopy  
Copy from active area to customer 1 area.  
Copy from active area to customer 2 area.  
Copy from customer 1 area to active area.  
active-to-customer1(2)  
active-to-customer2(3)  
customer1-to-active(4)  
customer1-to-customer2(5)  
Copy from customer 1 area to customer 2  
area.  
Copy from customer 2 area to active area.  
customer2-to-active(6)  
Copy from customer 2 area to customer 1  
area.  
customer2-to-customer1(7)  
Copy from factory area to active area. There factory1-to-active(8)  
is only one factory area for the unit.  
Copy from factory area to customer 1 area.  
Copy from factory area to customer 2 area.  
factory1-to-customer1(9)  
factory1-to-customer2(10)  
Port Usage Table, pdn-devPortUsage (pdn-interfaces 3)  
The Port Usage Table specifies whether the Management port is configured for  
ASCII alarms, as an SNMP management link, or is disabled. Supports the values  
alarm(1), netLink(3), and none(5).  
DDS Interface Specific Definitions, pdn-dds (pdn-interfaces 2)  
The DDS Interface Specific Definitions contain objects that are used to manage  
the DDS Network Interface. Fully supported by the unit.  
Device Security, pdn-security (pdn-common 8)  
Use the Device Security table to control the number of SNMP managers that may  
access the unit, as well as the unit access level (read or read/write). Fully  
supported by the unit.  
Device Traps, pdn-traps (pdn-common 9)  
Controls the SNMP managers to which the unit reports traps. Fully supported by  
the unit.  
Device Control, pdn-control (pdn-common 10)  
Uses the devControlReset object to reset the unit. Fully supported by the unit.  
November 1997  
7610-A2-GB20-10  
C-18  
 
Standards Compliance for  
SNMP Traps  
D
SNMP Traps Overview  
This section describes the unit’s compliance with SNMP standards and any  
special operational features for the SNMP traps supported. The unit supports the  
following user interface traps, along with several enterprise-specific traps:  
authenticationFailure  
warmStart  
linkUp  
linkDown  
Trap: authentificationFailure  
SNMP Trap  
Description  
Possible Cause  
authenticationFailure  
Failed attempts to access  
the unit.  
SNMP message not properly  
authenticated.  
Three unsuccessful attempts  
were made to enter a correct  
login/password combination.  
IP address security is  
enabled, and a message was  
received from SNMP manager  
whose address was not on the  
list of approved managers.  
There are no variable-bindings.  
7610-A2-GB20-10  
November 1997  
D-1  
Standards Compliance for SNMP Traps  
Trap: warmStart  
SNMP Trap  
Description  
Possible Cause  
warmStart  
The unit has reinitialized  
itself.  
Reset command.  
Power disruption.  
The trap is sent after the  
unit resets and stabilizes.  
There are no  
variable-bindings.  
Traps: linkUp and linkDown  
The link SNMP traps are:  
linkUp – The unit recognizes that one of the failed communication interfaces  
is operational (up).  
linkDown – The unit recognizes a failure in one of the communication  
interfaces.  
The following table describes the conditions that define linkUp and linkDown for  
each interface:  
linkUp/Down  
Variable-Bindings  
Interface  
Possible Cause  
Physical Sublayer – Represented by the entry in the MIB II Interfaces Table.  
DDS network  
ifIndex (RFC 1573)  
linkDown – One or more  
alarm conditions are active on  
the interface.  
(Supported by the  
media-specific DDS  
Enterprise MIB.)  
ifAdminStatus  
(RFC 1573)  
Alarm conditions include:  
– No Signal  
ifOperStatus (RFC 1573)  
ifType (RFC 1573)  
– Out of Service  
– Out of Frame  
ddsStatus (DDS  
Enterprise MIB)  
– Crossed Pair Detected  
– In-band Framing Error  
– Excessive Bipolar Violations  
(BPVs)  
linkUp – No alarms on the  
interface.  
Synchronous User  
Data Port  
ifIndex (RFC 1573)  
linkDown – The Alarm  
condition active on the  
interface is DTR Off. The DTR  
alarm condition only generates  
a linkUp/linkDown trap if the  
DTE supports the DTR lead.  
ifAdminStatus  
(RFC 1573)  
(Supported by the  
media-specific  
RS232-Like MIB.)  
ifOperStatus (RFC 1573)  
ifType (RFC 1573)  
linkUp – No alarm on the  
interface.  
November 1997  
7610-A2-GB20-10  
D-2  
Standards Compliance for SNMP Traps  
Traps: Enterprise Specific  
The enterpriseSpecific trap indicates that an enterprise-specific event has  
occurred. The Specific-trap field in the Trap PDU identifies the particular trap that  
occurred. The following table lists the enterprise specific traps supported by the  
unit:  
Trap  
What It Indicates  
Possible Cause  
enterpriseSelfTestFail(2)  
A hardware failure of the  
unit is detected during the  
unit’s self-test. The trap is  
generated after the unit  
completes initialization.  
Failure of one or more of the  
unit’s hardware components.  
enterpriseDeviceFail(3)  
enterpriseTestStart(5)  
An internal device failure.  
Operating software has  
detected an internal device  
failure.  
A test is running.  
At least one test has been  
started on an interface.  
enterpriseConfigChange(6) The configuration changed Configuration has been  
via the user interface or an changed via the user  
SNMP manager. The trap is interface or an SNMP  
sent after 60 seconds have manager.  
elapsed without another  
change. This suppresses  
the sending of numerous  
traps when multiple  
changes are made in a  
short period of time, as is  
typically the case when  
changing configuration  
options.  
enterpriseTestStop(105)  
All tests have been halted.  
All tests have been halted  
on an interface.  
There are no variable-bindings for enterpriseSelfTestFail, enterpriseDeviceFail,  
and enterpriseConfigChange.  
7610-A2-GB20-10  
November 1997  
D-3  
Standards Compliance for SNMP Traps  
The tests that affect the enterpriseTestStart, enterpriseTestStop, and the  
variable-binding are different for each particular interface. Diagnostic tests are  
only supported on the physical DDS network and user data port interfaces. The  
specific tests and variable-bindings are described in the following table:  
enterpriseTestStart/Stop  
Variable-Bindings  
Interface  
Possible Cause  
Physical Sublayer  
DDS network  
ifIndex (RFC 1573)  
enterpriseTest Start – Any one  
of the following tests is active  
on the interface:  
ifAdminStatus  
(RFC 1573)  
– DSU Loopback  
– CSU Loopback  
– Send 511 pattern  
– Monitor 511 pattern  
ifOperStatus (RFC 1573)  
ifType (RFC 1573)  
ddsTestType (DDS  
Enterprise MIB)  
enterpriseTest Stop – No  
longer has any tests running  
on the interface.  
Synchronous User  
Data Ports  
ifIndex (RFC 1573)  
enterpriseTest Start – Any one  
of the following tests is active  
on the port:  
ifAdminStatus  
(RFC 1573)  
– Local Loopback (DTE)  
– Send 511 pattern  
ifOperStatus (RFC 1573)  
ifType (RFC 1573)  
– Monitor 511 pattern  
ifTestType (RFC 1573)  
enterpriseTest Stop – No  
longer has any tests running  
on the port.  
November 1997  
7610-A2-GB20-10  
D-4  
 
Cables and Pin Assignments  
E
Cabling Overview  
The following sections provide pin assignments:  
Terminal Port EIA-232 Connector  
Management Port EIA-232 Connector  
V.35 User Data Port Connector  
Standard EIA-232-D Crossover Cable  
LAN Adapter Converter and Cable  
Modular RJ48S DDS Network Interface Cable  
7610-A2-GB20-10  
November 1997  
E-1  
Cables and Pin Assignments  
Terminal Port EIA-232 Connector  
The Terminal port connects to a PC or VT100-compatible terminal.  
Signal  
Direction  
Pin #  
Transmit Data (TXD)  
Received Data (RXD)  
Request to Send (RTS)  
Clear to Send (CTS)  
Data Set Ready (DSR)  
Signal Ground (SG)  
Carrier Detect (CD)  
To DSU (In)  
From DSU (Out)  
To DSU (In)  
From DSU (Out)  
From DSU (Out)  
2
3
4
5
6
7
From DSU (Out)  
8
Data Terminal Ready (DTR) To DSU (In)  
20  
Management Port EIA-232 Connector  
The following table shows the signals and pin assignments for the Management  
port connector.  
Signal  
Direction  
Pin #  
2
Transmit Data (TXD)  
Received Data (RXD)  
Request to Send (RTS)  
Clear to Send (CTS)  
Data Set Ready (DSR)  
Signal Ground (SG)  
Carrier Detect (CD)  
Transmit Clock (TXC)  
Received Clock (RXC)  
To DSU (In)  
From DSU (Out)  
To DSU (In)  
3
4
From DSU (Out)  
From DSU (Out)  
5
6
7
From DSU (Out)  
From DSU (Out)  
From DSU (Out)  
8
15  
17  
20  
24  
Data Terminal Ready (DTR) To DSU (In)  
External Tx Clock (XTXC) To DSU (In)  
November 1997  
7610-A2-GB20-10  
E-2  
Cables and Pin Assignments  
V.35 User Data Port Connector  
The following table provides the pin assignments for the 34-position  
V.35 connector to the User Data terminal equipment.  
34-Pin  
Socket  
Connector  
ITU  
Signal  
Direction  
CT#  
102  
105  
106  
107  
109  
Signal Ground/Common  
Request to Send (RTS)  
Clear to Send (CTS)  
Data Set Ready (DSR)  
B
C
D
E
F
To DSU (In)  
From DSU (Out)  
From DSU (Out)  
From DSU (Out)  
Received Line Signal Detector  
(RLSD or LSD)  
Data Terminal Ready (DTR)  
Remote Loopback (RL)  
Local Loopback (LL)  
108/1, /2 To DSU (In)  
H
N
L
140  
141  
103  
To DSU (In)  
To DSU (In)  
To DSU (In)  
Transmitted Data (TXD)  
P (A)  
S (B)  
Received Data (RXD)  
104  
From DSU (Out)  
To DSU (In)  
R (A)  
T (B)  
Transmitter Signal Element Timing — 113  
DTE Source (XTXC or TT)  
U (A)  
W (B)  
Receiver Signal Element Timing —  
DCE Source (RXC)  
115  
From DSU (Out)  
From DSU (Out)  
From DSU (Out)  
V (A)  
X (B)  
Transmitter Signal Element Timing — 114  
DCE Source (TXC)  
Y (A)  
AA (B)  
Test Mode Indicator (TM)  
142  
NN  
7610-A2-GB20-10  
November 1997  
E-3  
 
Cables and Pin Assignments  
Standard EIA-232-D Crossover Cable  
A standard crossover cable can be used to connect either the Terminal port or the  
Management port to an external modem.  
Pin 14  
Pin 1  
P1  
Plug  
P2  
Plug  
Pin 14  
Pin 1  
Pin 25  
Pin 13  
Pin 25  
Pin 13  
P1  
Pin  
Pin  
P2  
Chassis Ground  
Chassis Ground  
1
2
1
TXD  
RXD  
RTS  
TXD  
RXD  
RTS  
2
3
3
4
4
5
5
DSR  
DSR  
Signal Ground  
CD (RLSD)  
6
6
Signal Ground  
CD (RLSD)  
7
7
8
8
9
9
10  
11  
12  
13  
14  
15  
16  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
RXC  
DTR  
RXC 17  
18  
19  
DTR 20  
21  
22  
23  
XTXC  
XTXC 24  
25  
496-15180  
November 1997  
7610-A2-GB20-10  
E-4  
 
Cables and Pin Assignments  
LAN Adapter Converter and Cable  
The following figure shows the:  
Pin assignments for the DB25 plug to modular jack converter between the  
Management port and the 8-conductor LAN Adapter cable and  
Pin assignments for the custom 8-conductor cable (with modular plugs on  
both ends) between the converter and the LAN Adapter.  
Plug-to-Modular  
Jack Converter  
Cable  
Management  
8-Position  
Plug to  
Plug to  
Port (DB25 Plug)  
Modular Jack  
Modular Jack  
LAN Adapter  
Tx Clock 15  
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Unused  
Rx Data  
Signal Ground  
Tx Data  
3
7
2
DTR  
Tx Data  
Signal Ground  
Rx Data  
CTS  
DTR 20  
CD  
8
4
RTS  
Frame Ground  
Unused  
Rx Clock 17  
496-15179  
Modular RJ48S DDS Network Interface Cable  
Network access is via a 14-foot modular cable with an RJ48S keyed plug  
connector on each end.  
RJ48S DDS Network  
Interface Cable Functions  
Circuit Pin #  
Transmitted data to the local loop  
Transmitted data to the local loop  
Received data from the local loop  
Received data from the local loop  
R
T
1
2
7
8
T1  
R1  
7610-A2-GB20-10  
November 1997  
E-5  
 
Glossary  
agent  
A software program housed within a device to provide SNMP functionality. Each SNMP  
agent stores management information and responds to the manager’s request.  
aggregate  
ASCII  
A single bit stream that combines two or more bit streams.  
American Standard Code for Information Interchange. A 7-bit code that establishes  
compatibility between data services. ASCII is the standard for data transmission over  
telephone lines.  
ASCII Terminal or  
Printer  
Devices that can be attached, either locally or remotely, to display or print the DSU’s alarm  
messages.  
asynchronous  
A data transmission that is synchronized by a transmission start bit at the beginning of  
a character (five to eight bits) and one or more stop bits at the end.  
AT Command Set  
Attention Command Set. A group of commands, issued from an asynchronous DTE, that  
allows control of the modem while in Command mode. All commands must begin with the  
characters AT and end with a carriage return.  
ATI  
Asynchronous terminal interface. This feature allows a device to be controlled from an  
async (asynchronous) terminal like an ASCII (VT100-compatible) terminal.  
autobaud mode  
An operational mode in which the DSU forces automatic setting of the DDS line rate/speed  
(56 or 64 kbps) as soon as a valid DDS network signal is detected.  
AUX port  
BPV  
The auxiliary communications port on a router.  
Bipolar Violation. A modified bipolar signaling method in which a control code is inserted.  
Circuit Card Assembly. A printed circuit board to which separate components are attached.  
Consultative Committee on International Telegraphy and Telephony. See ITU.  
CCA  
CCITT  
CD  
Carrier Detect. A signal indicating that energy exists on the transmission circuit.  
Associated with Pin 8 on an EIA-232 interface.  
channel  
CMI  
An independent data path.  
Control Mode Idle. A control signal sent over the DDS line to indicate that no data is being  
sent.  
COM port  
Communications port. A computer’s serial communications port used to transmit to and  
receive data from a DCE. The DCE connects directly to this port.  
configuration option  
CPE  
Device software that sets specific operating parameters for the DSU.  
Customer Premises Equipment. Terminating equipment supplied by either the customer or  
some other supplier that is connected to the telecommunications network (e.g., DSUs,  
terminals, phones, routers, modems).  
CSU  
CTS  
Channel Service Unit. The function of the DSU that protects the T1 line from damage and  
regenerates the T1 signal.  
Clear to Send. An EIA-lead standard for V.24 circuit CT 106; an output signal  
(DCE-to-DTE).  
7610-A2-GB20-10  
November 1997  
GL-1  
Glossary  
DCE  
Data Communications Equipment. The equipment that provides the functions required to  
establish, maintain, and end a connection. It also provides the signal conversion required  
for communication between the DTE and the network.  
DDS  
DMI  
Digital Data Service. Provides digital communication circuits.  
Data Mode Idle. Refers to a sequence of ones transmitted or received on the DDS  
network.  
DSR  
DSU  
DTE  
DTR  
EIA  
Data Set Ready. An EIA-lead standard for V.24 circuit CT 107; an output signal  
(DCE-to-DTE).  
Data Service Unit. Data communications equipment that provides an interface between the  
DTE and the digital network.  
Data Terminal Equipment. The equipment, such as computers and printers, that provides  
or creates data.  
Data Terminal Ready. An EIA-lead standard for V.24 circuit CT 108; an input signal  
(DTE-to-DCE).  
Electronic Industries Association. This organization provides standards for the data  
communications industry to ensure uniformity of interface between DTEs and DCEs.  
EIA-232  
The EIA’s standards defining the 25-pin interface between the DTE and DCE.  
MIB objects unique to Paradyne devices.  
Enterprise MIB  
excessive BPV  
An excessive bipolar violation condition results when at least one invalid bipolar violation  
has occurred every 20 milliseconds for 2 seconds.  
factory defaults  
FCC  
A predetermined set of configuration options for general operation.  
Federal Communications Commission. Board of Commissioners that regulates all U.S.  
interstate, intrastate, and foreign electrical communication systems that originate from the  
United States.  
frame relay  
A switching interface that is designed to get frames from one part of the network to another  
as quickly as possible.  
full-duplex  
HDLC  
The capability to transmit in two directions simultaneously.  
High-Level Data Link Control. A communications protocol defined by the International  
Standards Organization (ISO).  
ICMP  
Internet Control Management Protocol. Internet protocol that allows for the generation of  
error messages, tests packets, and information messages related to IP.  
IMC  
In-band Management Channel. A proprietary TDM channel used for IP connectivity.  
A shared boundary between functional units.  
interface  
IP  
Internet Protocol. The TCP/IP standard protocol that defines the unit of information passed  
across an Internet and provides the basis for packet delivery service. IP includes the ICMP  
control and error message protocol as an integral part. The entire protocol suite is often  
referred to as TCP/IP because TCP and IP are the two most fundamental protocols.  
IP address  
The IP address has a host component and a network component. The address is assigned  
to hosts or workstations with direct Internet access to uniquely identify entities on the  
Internet.  
ITU  
International Telecommunication Union, formerly known as CCITT. An advisory committee  
established by the United Nations to recommend communications standards and policies.  
LADS  
Local Area Data Set is used to provide a point-to-point link between two devices (also  
called LDM – limited distance modem).  
November 1997  
7610-A2-GB20-10  
GL-2  
Glossary  
LAN  
Local Area Network. A network designed to connect devices over short distances, like  
within a building.  
latching loopback  
LED  
A latching loopback can only be initiated or terminated by the 64 kbps clear channel  
network service provider.  
Light Emitting Diode. A status indicator that responds to the presence of a certain  
conditions.  
link layer protocol  
LL  
The protocol that regulates the communication between two network nodes.  
Local Loopback. An EIA-lead standard for V.24 circuit CT 141; an input signal  
(DTE-to-DCE).  
loopback  
LSD  
Used to test various portions of a data link in order to isolate an equipment or data line  
problem. A diagnostic procedure that sends a test message back to its origination point.  
Line Signal Detect. An EIA-lead standard for V.24 circuit CT 109; an output signal  
(DCE-to-DTE).  
manager (SNMP)  
MIB  
The device that queries agents for management information, or receives unsolicited SNMP  
trap messages indicating the occurrence of specific events.  
Management Information Base. The set of variables a device running SNMP maintains.  
Standard, minimal MIBs have been defined, and vendors often have private enterprise  
MIBs. In theory, any SNMP manager can talk to any SNMP agent with a properly defined  
MIB. MIB-II refers to an extended management database that contains variables not  
defined in the original MIB I.  
multiplexing  
NMS  
A method for interleaving several access channels onto a single circuit for transmission  
over the network.  
Network Management System. A computer system used for monitoring and controlling  
network devices.  
node  
A connection or switching point on the network.  
non-latching  
loopback  
A non-latching loopback can only be initiated or terminated by the 56 kbps network service  
provider.  
NS  
No Signal. A network-reported condition.  
object (SNMP)  
OOF  
A specific item within the Management Information Base (MIB).  
Out Of Frame. An error condition in which frame synchronization bits are in error. A  
network-reported condition.  
OOS  
Out of Service. A digital network trouble signal.  
Packet Assembler/Diassembler.  
PAD  
point-to-point circuit  
PPP  
A data network circuit with one control and one tributary device.  
Point-to-Point Protocol. A link-layer protocol used by SNMP.  
protocol  
The rules that govern how devices exchange information on a network. It covers timing,  
format, error control, and flow control during data transmission.  
PSTN  
Public Switched Telephone Network. A network shared among many users who can use  
telephones to establish connections between two points.  
reset  
RFC  
A reinitialization of the device that occurs at power-up or in response to a reset command.  
Request for Comments. The set of documents that describes the standard specifications  
for the TCP/IP protocol suite.  
7610-A2-GB20-10  
November 1997  
GL-3  
Glossary  
RIP  
Routing Information Protocol. Specifies the routing protocol used between DSUs.  
Receive Line Signal Detect. See CD.  
RLSD  
router  
A device that makes decisions about the paths network traffic should take and forwards  
that traffic to its destination. A router helps achieve interoperability and connectivity  
between different vendor’s equipment, regardless of protocols used.  
RS-232  
RTS  
An EIA standard for the 25-pin DCE/DTE interface. Same as EIA-232.  
Request to Send. An EIA-lead standard for V.24 circuit CT 105; an input signal  
(DTE-to-DCE).  
RXC  
RXD  
Received Clock. An EIA-lead standard for V.24 circuit CT 115; an output signal  
(DCE-to-DTE).  
Received Data. An EIA-lead standard for V.24 circuit CT 104; an output signal  
(DCE-to-DTE).  
SDLC  
SLIP  
Synchronous Data Link Control. A standard data link protocol.  
Serial Line Internet Protocol. A link layer protocol being used over serial lines by IP.  
SNMP  
Simple Network Management Protocol. A generic internet network management protocol  
that allows the device to be managed by any industry-standard SNMP manager.  
subnet  
An IP addressing standard in which a portion of the host address can be used to create  
multiple network addresses that are logically a subdivision of the network address.  
subnet address  
The subnet portion of an IP address. In a subnetted network, the host portion of an IP  
address is split into a subnet portion and a host portion using a subnet address mask. This  
allows a site to use a single IP network address for multiple physical networks.  
subnet mask  
synchronous  
An integer used with the IP address of the host to determine which bits in the host address  
are used in the subnet address.  
Data transmission that is synchronized by timing signals. Characters are sent at a fixed  
rate.  
TCP/IP  
TDM  
Transmission Control Protocol/Internet Protocol. Refer to IP.  
Time Division Multiplexer. A device that enables the simultaneous transmission of multiple  
independent data streams into a single high-speed data stream.  
Telnet  
Virtual terminal protocol in the Internet suite of protocols. Allows the user of one host  
computer to log into a remote host computer and interact as the user for that host.  
TM  
Test Mode. An EIA-lead standard for V.24 circuit CT 142; an output signal (DCE-to-DTE).  
TXC  
Transmit Clock. An EIA-lead standard for V.24 circuit CT 114; an output signal  
(DCE-to-DTE).  
TXD  
Transmit Data. An EIA-lead standard for V.24 circuit CT 103; an input signal  
(DTE-to-DCE).  
UDP  
V.35  
User Datagram Protocol. An Internet protocol.  
ITU-T standard for a high-speed, 34-pin, DCE/DTE interface.  
WAN  
Wide Area Network. A network that operates over long distances and spans a relatively  
large geographic area (e.g., a country).  
November 1997  
7610-A2-GB20-10  
GL-4  
 
Index  
Numbers  
A
access  
alarm  
D
data port. See DTE  
defaults  
alternate directory, 3-5– 3-7  
ASCII  
reload factory, 7-7  
device  
async terminal interface. See ATI  
ATI  
dial-in  
initiating, 2-1– 2-8  
C
cables to order. See Start-Up Instructions  
E
effective access, to ATI, 2-3, 4-4  
enterprise  
community names, for SNMP, 4-6  
configuration  
MIB objects, C-2, C-18– C-19  
external device  
7610-A2-GB20-10  
November 1997  
IN-1  
Index  
F
M
management  
messages  
G
H
I
MIB  
IMC  
in-band management channel. See IMC  
installing rear connectors. See Start-Up Instructions  
interface  
N
network  
connections, 1-4  
K
NMS  
SNMP connectivity, 5-1– 5-4  
L
LADS connection distances. See Start-Up Instructions  
LAN  
O
options  
November 1997  
7610-A2-GB20-10  
IN-2  
Index  
system  
P
package checklist. See Start-Up Instructions  
phone number, for call directory, 3-6– 3-7  
port  
T
technical specifications. See Start-Up Instructions  
telnet session  
primary directory, 3-5– 3-7  
protocols, link-layer, 1-3  
to initiate ATI, 2-1  
terminal port  
R
rear panel, connections, 1-4  
routing information protocol. See RIP  
RS-232-Like MIB, C-2  
test  
S
safety instructions. See Start-Up Instructions  
U
user interface, 1-4  
SNMP  
features, 1-4– 1-6  
V
start-up  
V.35 connector, E-3  
VT100 compatible terminal. See async terminal  
instructions. See Document 7610-A2-GN10  
status  
W
7610-A2-GB20-10  
November 1997  
IN-3  

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