Paradyne Computer Hardware 7610 User Manual

MODEL 7610 SNMP DSU

USER’S GUIDE

Document No. 7610-A2-GB20-10

November 1997

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Contents

About This Guide

Document Purpose and Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . vii

Document Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Product-Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

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

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

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

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

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

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

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

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)

ALARM TEST

OOS

OOF

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

Data

Router

Network

SNMP

DSU

SNMP

DSU

497-15274

The SNMP DSU can also be used in a frame relay network.

Frame

DDS

Relay

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:

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.

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

Terminal

NETWORK

TERMINAL MANAGEMENT

POWER

Power

Router,

LAN Adapter,

or Modem

Network

NMS Host

ASCII Terminal

or Printer

496-15085

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Using the ATI

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

• System and Test Status

• Network Interface Status

• Performance Statistics

• Display LEDs

• Call Setup

• Call Directories

• Device Name

• Administer Logins

• Reset Device

• Network

• Data Port

• Abort All Tests

• 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

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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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Using the ATI

Screen Work Areas

There are two user work areas:

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

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

None

Stop Bits:

Monitor DTR:

Enable

Input Fields

Enable

Level 1

Enable

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

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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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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.

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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.

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Customizing the SNMP DSU

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

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.

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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

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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.

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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

The Save Configuration To screen appears.

The Main Menu appears and changes are not saved.

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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

Ctrl-a to access these functions, ESC for previous menu

Save

MainMenu

Exit

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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

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

, (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

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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.

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Security

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.

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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 . . .

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.

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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.

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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

Access Level of 2, the effective access level to the ATI is 2.

Table 4-1. Effective Access Levels

Effective

ATI Access to Menu Functions

Access Level 1 Access Level 2 Access Level 3

Status

Read-Only

Full Access

Read-Only

Full Access

Read-Only

No Access

Read-Only

No Access

Read-Only

No Access

Test

Configuration

Control

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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

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.

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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.

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IP Addressing

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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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

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

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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.

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Monitoring the DSU

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

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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

DM OOS OOF NS

TXD

RXD RTS CTS DTR

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.

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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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Monitoring the DSU

Port LEDs

TXD – Transmitted Data:

OFF

– Receiving all 0s from the DTE.

– Receiving all 1s from the DTE.

Blinking – User data is being transferred.

RXD – Received Data:

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.

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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.

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.

2. Contact network provider.

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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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.

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.

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.

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.

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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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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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:

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.

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Testing

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

No Signal (NS)

Out of Service (OOS)

Out of Frame (OOF)

Excessive Bipolar

Violations (BPV)

Inband Framing Error

DTR Off

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.

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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

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.

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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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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.

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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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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

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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.

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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.

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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.

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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.

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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.

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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.

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

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

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.

x is the character not being accepted.

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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.

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.

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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.

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Configuration Option Tables

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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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.

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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.

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

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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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.

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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.

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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.

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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.

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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.

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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.

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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

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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

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

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

^J or ^j

LF or NL 0x0A

VT 0x0B

FF or NP 0x0C

SUB

ESC

^K or ^k

^L or ^l

^M or ^m CR

0x0D

0x0E

0x0F

0x10

^N or ^n

^O or ^o

^P or ^p

DLE

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Worksheets

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

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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]

[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

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

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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]

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

ASCII Text

[None], 0.2, 0.4, 0.6, 0.8, 1.0

ASCII Text

Enable, [Disable]

[Level 1], Level 2, Level 3

Enable, [Disable]

range 1 – 60 [5]

Session Access Level

Inactivity Timeout

Disconnect Time (minutes)

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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]

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

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

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MIB Descriptions

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:

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

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.

SNMP Group

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MIB Descriptions

The following MIB II groups are not supported:

Address Translation Group

Exterior Gateway Protocol (EGP) Group

RS-232-Like MIB – RFC 1659

The unit supports RS-232-Like MIB, RFC 1659:

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.

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:

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)

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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.

sysName

(system 5)

Provides an

administratively-assigned

name for this managed unit.

ASCII character string, as set by the

user.

sysLocation Provides the physical location ASCII character string, as set by the

(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.

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.

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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.

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].

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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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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)

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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.

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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.

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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).

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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}.

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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)

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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,

48,000.

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.

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.

This speed is only valid when the port is configured for asynchronous operation.

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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.

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.

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.

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

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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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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.

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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.

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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.

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Standards Compliance for

SNMP Traps

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

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.

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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.

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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.

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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.

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Cables and Pin Assignments

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

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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)

Data Terminal Ready (DTR) To DSU (In)

Management Port EIA-232 Connector

The following table shows the signals and pin assignments for the Management

port connector.

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)

Transmit Clock (TXC)

Received Clock (RXC)

To DSU (In)

From DSU (Out)

To DSU (In)

From DSU (Out)

—

From DSU (Out)

Data Terminal Ready (DTR) To DSU (In)

External Tx Clock (XTXC) To DSU (In)

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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)

—

To DSU (In)

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)

140

141

103

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)

V (A)

X (B)

Transmitter Signal Element Timing — 114

DCE Source (TXC)

Y (A)

AA (B)

Test Mode Indicator (TM)

142

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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

Plug

Pin 14

Pin 1

Pin 25

Pin 13

Pin 25

Pin 13

Chassis Ground

TXD

RXD

RTS

TXD

RXD

RTS

DSR

Signal Ground

CD (RLSD)

Signal Ground

CD (RLSD)

RXC

DTR

RXC 17

DTR 20

XTXC

XTXC 24

496-15180

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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

Port (DB25 Plug)

Modular Jack

LAN Adapter

Tx Clock 15

Unused

Rx Data

Signal Ground

Tx Data

DTR

Tx Data

Signal Ground

Rx Data

CTS

DTR 20

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

Received data from the local loop

7610-A2-GB20-10

November 1997

E-5

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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

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

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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

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

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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

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.

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

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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.

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

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Index

configuration examples, 1-3

connectors, rear panel, E-1– E-5

control, menu, 2-2– 2-3

Numbers

511 test pattern, 7-4– 7-5

create login ID, 4-2

access

crossover EIA-232 cable, E-4

CTS, clear to send LED, 6-4

customer, configuration areas, 3-3

effective level, 4-4

SNMP, 1-4, 4-6

to the ATI, 4-1– 4-5

administer login, 4-2

alarm

data port. See DTE

data port options, A-1, A-9– A-1 1

defaults

alarms & traps, options, A-1, A-20– A-22

alternate directory, 3-5– 3-7

ASCII

configuration option, 3-3– 3-4

reload factory, 7-7

device

messages, 8-4– 8-5

name, 3-1

alarm, 7-1

alarm messages, 3-5, 8-1

characters, 3-1, A-29– A-30

async terminal interface. See ATI

ATI

reset, 7-7

dial-in

external device access, 4-1– 4-5

NMS management, 3-5

dialing out, SNMP traps, 8-3

directory, call, 3-5– 3-7

displaying, configuration options, 3-4

DM, data mode LED, 6-3

initiating, 2-1– 2-8

DTR, data terminal ready LED, 6-4

cables, rear panel, E-1– E-5

cables to order. See Start-Up Instructions

call, setup, 3-5– 3-7

effective access, to ATI, 2-3, 4-4

EIA-232 pin assignments, E-2– E-4

enterprise

communication protocol options, A-1, A-22

community names, for SNMP, 4-6

configuration

MIB objects, C-2, C-18– C-19

SNMP traps, D-3– D-4

external device

menu, 2-2– 2-3

option areas, 3-3– 3-4

option tables, A-1– A-26

access, 4-1– 4-5

option worksheets, B-1– B-4

options, A-1, A-15

7610-A2-GB20-10

November 1997

IN-1

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Index

factory defaults, for configuration options, 3-3– 3-4

main menu, 2-2– 2-3, A-1– A-2

management

of SNMP DSU, 1-1

port access, 4-1– 4-5

port options, A-1, A-13– A-17

messages

glossary, GL-1–GL-4

alarm and device, 8-1– 8-6

health and status, 6-5– 6-6

self-test results, 6-7

test status, 7-5

health and status, messages, 6-5– 6-6

MIB

descriptions, C-1– C-18

support, 1-2

identity, 3-1– 3-2

IMC

access, 4-1– 4-5

remote management, 1-1

subnet connection, 5-2

in-band management channel. See IMC

installing rear connectors. See Start-Up Instructions

interface

navigating the screens, 2-5

network

default destination, 5-4

interface cable, E-5

interface LEDs, 6-3

interface options, A-1, A-5– A-8

interface status, 6-7– 6-8

loopbacks, 7-3

connections, 1-4

network status, 6-7– 6-8

IP addresses, 5-1– 5-4

for SNMP managers, 4-6

IP interfaces, 4-1– 4-6, 5-2

performance statistics, 6-8

tests, 7-2

NMS

dial-in management, 3-5

SNMP access, 4-6

keyboard functions, 2-5

SNMP connectivity, 5-1– 5-4

SNMP security options, A-25

NS, no signal LED, 6-3

LADS connection distances. See Start-Up Instructions

lamp test, 7-4

LAN

adapter, 5-1– 5-4

objects for MIBs, C-1– C-18

OK, LED, 6-2

adapter and cable, E-5

LEDs, 6-1– 6-4

OOF, out of frame LED, 6-3

OOS, out of service LED, 6-3

options

link-layer protocols, 1-3, 5-1– 5-4

loopbacks, 7-3– 7-7

configuration areas, 3-3

configuration tables, A-1– A-26

configuration worksheets, B-1– B-4

November 1997

7610-A2-GB20-10

IN-2

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Index

subnet, IP addresses, 5-1– 5-4

system

package checklist. See Start-Up Instructions

performance, network statistics, 6-8

phone number, for call directory, 3-6– 3-7

pin assignments, E-1– E-5

port

device name fields, 3-1

technical specifications. See Start-Up Instructions

telnet session

primary directory, 3-5– 3-7

protocols, link-layer, 1-3

access, 4-1– 4-5

options, A-1, A-18

to initiate ATI, 2-1

terminal port

rear panel, connections, 1-4

reset device, 7-7

access, 4-1– 4-3

direct connection, 2-1

options, A-1, A-1 1– A-13

reset, 7-7

RFCs, MIB descriptions, C-1– C-17

RIP option, 5-1– 5-4

RJ48S network interface cable, E-5

router, management data, 5-3

routing information protocol. See RIP

RS-232-Like MIB, C-2

test

DTE, 7-4

LED, 6-2

menu, 2-2– 2-3

RTS, request to send LED, 6-4

RXD, received data LED, 6-4

network, 7-2

status messages, 7-5

testing, 7-1– 7-8

traps, SNMP, 8-3, D-1– D-4

troubleshooting, 8-5

TXD, transmitted data LED, 6-4

safety instructions. See Start-Up Instructions

saving option changes, 3-4– 3-5

screens, for user interface, 2-1– 2-6

security, 4-1– 4-6

self-test results, 6-7

user interface, 1-4

access, 2-1

session, telnet access, 4-1– 4-5

SNMP

async terminal, 2-1

configuration options, A-1

access, 4-6

features, 1-4– 1-6

setup traps, 8-3

system entries, 3-1

traps, 3-5, 7-1, D-1– D-4

SNMP & communication, options, A-1, A-22

start-up

V.35 connector, E-3

V.54 sequences, 7-3

VT100 compatible terminal. See async terminal

ATI, 2-1

instructions. See Document 7610-A2-GN10

statistics, of network performance, 6-8

status

worksheets, option configuration, B-1– B-4

menu, 2-2– 2-3

network interface, 6-7– 6-8

of DSU, 6-5– 6-6

test messages, 7-5

7610-A2-GB20-10

November 1997

IN-3

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