ADTRAN Network Router 1200263L1 12A User Manual

ATLAS Router  
User Manual  
Part Number 1200263L1-1.2A  
61200263L1-1.2A  
September 1998  
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Table of Contents  
List of Figures ..................................................................................................................................................... v  
Chapter 1. Router ........................................................................................................................................... 1-1  
Router Overview .............................................................................................................................................. 1-1  
Features ............................................................................................................................................................. 1-2  
Specifications .................................................................................................................................................... 1-2  
Chapter 2. Technology Overview ............................................................................................................... 2-1  
IP Routing ......................................................................................................................................................... 2-1  
Chapter 3. Operation ..................................................................................................................................... 3-1  
Overview ........................................................................................................................................................... 3-1  
Terminal Menu Structure ................................................................................................................................ 3-1  
Router Menu ..................................................................................................................................................... 3-2  
IP Menu ............................................................................................................................................................. 3-3  
Static Routes .............................................................................................................................................. 3-3  
ARP Cache ................................................................................................................................................. 3-4  
Routes ......................................................................................................................................................... 3-5  
Interfaces .................................................................................................................................................... 3-7  
Chapter 4. Configuration Overview and Examples ................................................................................ 4-1  
Example 1: IP Routing Network—ATLAS as the Central-Site Router ............................................ 4-2  
Appendix A. Glossary .................................................................................................................................. A-1  
Index ..........................................................................................................................................................Index-1  
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Table of Contents  
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List of Figures  
Figure 1-1. External Routers ........................................................................................................................... 1-1  
Figure 1-2. Internal Routers............................................................................................................................ 1-2  
Figure 3-1. Router Added to the Main Terminal Menu ............................................................................. 3-1  
Figure 3-2. Router Menu Tree ........................................................................................................................ 3-2  
Figure 3-3. IP Routes Menu ............................................................................................................................ 3-3  
Figure 3-4. Static Routes Menu ...................................................................................................................... 3-3  
Figure 3-5. ARP Cache Menu ......................................................................................................................... 3-4  
Figure 3-6. Routes Menu ................................................................................................................................. 3-5  
Figure 3-7. Interfaces Menu ............................................................................................................................ 3-7  
Figure 4-1. ATLAS Configured for the Router Option ............................................................................... 4-1  
Figure 4-2. IP Routing Network with ATLAS as the Central-Site Router ............................................... 4-2  
Figure 4-3. Panel for Creating Packet Endpoint .......................................................................................... 4-2  
Figure 4-4. Panel for Creating Sublinks ........................................................................................................ 4-3  
Figure 4-5. Panel for Connecting IP Traffic to Internal Router ................................................................. 4-3  
Figure 4-6. Panel for Connecting Endpoints to Physical Interface ........................................................... 4-4  
Figure 4-7. Panel for Enabling Routing......................................................................................................... 4-4  
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Chapter 1  
Router  
ROUTER OVERVIEW  
The ATLAS router uses the integral 10BaseT Ethernet port to transmit local area  
network (LAN) traffic over the wide area network (WAN) to a remote LAN. By  
integrating the router into the network access device, you benefit from the cost  
savings of not requiring an external router. Figure 1-1 and Figure 1-2 illustrate a  
conversion from an application with external routers to one using integral routers  
within ADTRAN products.  
Router  
F-T1  
TSU 100e  
ATLAS  
Frame  
Relay  
Router  
T1  
F-T1  
TSU 100e  
Router  
Router  
F-T1  
TSU 100e  
Figure 1-1. External Routers  
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Chapter 1. Router  
L
A
N
F-T1  
PC  
TSU 100e  
with router module  
ATLAS 800PLUS  
with router firmware  
L
A
N
Frame  
Relay  
T1  
F-T1  
PC  
TSU 100e  
with router module  
L
A
N
L
A
N
F-T1  
PC  
PC  
TSU 100e  
with router module  
Figure 1-2. Internal Routers  
The Frame Relay/ Router option lets the ATLAS series of Integrated Access  
Devices act as a voice/ data FRAD, a frame relay switch, and an IP router—in  
addition to the currently available bandwidth management and switch applica-  
tions.  
FEATURES  
The Router option provides the following features:  
Routes IP traffic between a public or private frame relay network and the inte-  
gral 10BaseT Ethernet port.  
Routes IP traffic between virtual circuits in a frame relay network.  
SPECIFICATIONS  
IP Routing  
Route Discovery  
RIP V1  
RIP V2  
ICMP  
DHCP  
ARP  
IARP  
UDP Relay  
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Chapter 2  
Technology Overview  
IP ROUTING  
Internet Protocol (IP) routing is performed at layer 3 of the Open System Intercon-  
nection (OSI) model. (Refer to the Frame Relay User Manual for a description of the  
OSI model.) The routing process determines the optimal path for data packets to  
travel and then moves the data packets along that path. Routers exchange infor-  
mation about paths or routes that reach additional LAN segments. This exchange  
of routing information allows a router to build a detailed knowledge of the net-  
work topology. Criteria for selecting the best path can include such items as dis-  
tance, number of hops (servers or routers), and cost of the transportation media.  
ATLAS supports Routing Information Protocol (RIP), a protocol based on hops.  
Each route has a set number of hops (routers or servers) that it must travel  
through to reach a final destination. If a new route to a host address that has a  
fewer number of hops is learned, it becomes the preferred route. When a new  
route is learned, the router increments the hop count by one and immediately  
broadcasts the new route over the other interfaces. To prevent routing loops, RIP  
defines a hop count of 16 as an infinite or unreachable route.  
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Chapter 2. Technology Overview  
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Chapter 3  
Operation  
OVERVIEW  
The Router Upgrade provides remote connectivity of LANs within an ATLAS—  
from LAN-to-WAN connection or from WAN-to-WAN connection. The Router  
Upgrade is included as part of the frame relay upgrade and includes an IP Router.  
TERMINAL MENU STRUCTURE  
The ATLAS uses hierarchical menus to access all of its features. The top-most  
menu level leads to submenus which are grouped by functionality. All menu  
items display in the terminal window.  
Refer to the ATLAS User Manual for detailed instructions on how to navigate  
through the terminal menu.  
When the Router Option is enabled, the Router Menu is added to the main termi-  
nal menu (see Figure 3-1). All routing functions within ATLAS are configured  
and monitored from the Router Menu.  
Figure 3-1. Router Added to the Main Terminal Menu  
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Chapter 3. Operation  
ROUTER MENU  
The Router Menu defines, configures, and monitors all ATLAS Router options. Fig-  
ure 3-2 displays the IP Router menu tree.  
IP Address  
Netmask  
Static Routes  
ARP Cache  
Gateway  
Interface  
Hops  
IP Address  
MAC Address  
Time  
Type  
IP  
Interface  
TX Pending  
IP Address  
Netmask  
Gateway  
Interface  
Used  
Routes  
Flags  
Hops  
TTL  
Network Name  
Address  
Subnet Mask  
IARP  
Interfaces  
Mode  
Far-End Address  
MTU  
Protocol  
Method  
Updates  
V2 Secret  
RIP  
Figure 3-2. Router Menu Tree  
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Chapter 3. Operation  
IP MENU  
The IP Menu defines and monitors IP routes (see Figure 3-3).  
Figure 3-3. IP Routes Menu  
Static Routes  
The Static Routes Menu manages static IP routes. You can create, modify, and  
delete routes using this menu (see Figure 3-4).  
Figure 3-4. Static Routes Menu  
IP Address  
Write Security: 3; Read Security: 5  
Defines the IP address of the host or network device being routed to.  
Netmask  
Write Security: 3; Read Security: 5  
Determines for routing the number of bits used in the above-defined IP address.  
If a host address is desired for the IP address, this field must be set to  
255.255.255.255.  
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Chapter 3. Operation  
Gateway  
Write Security: 3; Read Security: 5  
Defines the IP address of the router to receive the forwarded IP packet.  
Interface  
Write Security: 3; Read Security: 5  
Defines the interface to which IP packets with this address will be routed. These  
are either Ethernet or frame relay DLCIs.  
Hops  
Write Security: 3; Read Security: 5  
Defines the number of router hops required to get to the network or host. Maxi-  
mum distance is 15 hops.  
ARP Cache  
The ARP Cache Menu displays the contents of the ATLAS Address Resolution Pro-  
tocol (ARP) cache (see Figure 3-5). All resolved cache entries time out after 20  
minutes. Unresolved entries time out in 3 minutes.  
Figure 3-5. ARP Cache Menu  
IP Address  
Read Security: 5  
Displays the IP address used for resolving MAC address.  
MAC Address  
Read Security: 5  
Resolves Ethernet address. If set to all zeros, there is no resolution for that  
address.  
Time  
Read Security: 5  
Displays the minutes since the entry was last referenced.  
Type  
Write Security: 3; Read Security: 5  
Defines this entry as dynamic or static.  
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Interface  
Read Security: 5  
Displays the interface upon which this entry was found.  
Tx Pending  
Read Security: 5  
Displays the number of transmit packets pending a reply.  
Routes  
The Routes Menu displays the contents of the ATLAS route table. All static and  
discovered routes are displayed from this menu (see Figure 3-6).  
Figure 3-6. Routes Menu  
IP Address  
Read Security: 5  
Displays the IP address of the network or host destination address.  
Netmask  
Write Security: 3; Read Security: 5  
Displays the netmask applied to the destination address.  
Gateway  
Read Security: 5  
Displays the IP address of the host or router receiving the forwarded IP packet.  
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Chapter 3. Operation  
Interface  
Read Security: 5  
Displays the interface to which IP packets with this address will be routed.  
Options  
Local  
EN0 IP  
Sent directly to the ATLAS router  
ATLAS Ethernet port  
Endpoint Name (DLCI #)  
Used  
Read Security: 5  
Displays the number of times the router has referenced this route.  
Flags  
Read Security: 5  
Indicates the properties of this routing table entry, composed of the following let-  
ters:  
- route is a host route  
H
- route is a gateway route  
G
- route learned dynamically from RIP  
D
- route learned from an ICMP redirect  
I
- route is private and is not advertised with RIP  
P
- route is to a triggered port (updated only when table changes)  
T
Hops  
Read Security: 5  
Displays the number of router hops required to get to the network or host.  
Ranges from 0 to 16. If set to 16, it is defined as infinite and cannot be routed.  
TTL  
Read Security: 5  
Displays the number of seconds until the address is removed from table. Value of  
999 means the route is static.  
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Chapter 3. Operation  
Interfaces  
The Interfaces Menu (see Figure 3-7) configures and monitors all interfaces con-  
nected to the ATLAS router. These include the Ethernet and frame relay DLCIs  
connected in the Packet Manager/ Packet Cncts.  
Figure 3-7. Interfaces Menu  
Network Name  
Read Security: 5  
Displays the name of the interface connected to the ATLAS router. The options are  
listed below:  
EN0 IP  
ATLAS Ethernet port  
Endpoint Name (DLCI #)  
Address  
Write Security: 3; Read Security: 5  
Defines the individual interface IP address. If this field is left as 0.0.0.0, it is  
treated as an unnumbered interface.  
Subnet Mask  
Write Security: 3;Read Security: 5  
Defines the subnet mask applied to the address defined for this link. If the subnet  
mask is unnumbered, leave as 0.0.0.0.  
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Chapter 3. Operation  
IARP (Inverse ARP)  
Write Security: 3; Read Security: 5  
The Inverse ARP (IARP) field is only present when this is a frame-relay network  
interface. ATLAS always responds to Inverse ARP requests with its IP address for  
the requested DLCI.  
Enable  
Atlas sends Inverse ARP packets in order to determine the IP address on  
the other end of the virtual circuit. If the Inverse ARP packet is  
responded to, a route is placed in the IP route table.When this field is  
set to ENABLE, ATLAS dynamically sends Inverse ARP packets to deter-  
mine the IP address on the other end of the virtual circuit. When an  
Inverse ARP packet is not responded to, a route is placed in the IP route  
table.  
Disable ATLAS responds to Inverse ARP requests with its IP address for the  
requested DLCI. If set to DISABLE, ATLAS does not generate Inverse ARP  
request packets. In this case, the Far-End Address parameter may be  
used to statically assign a route address (see Far-End Address on page  
3-8).  
Far-End Address  
Read Security: 3; Write Security: 5  
The Far-End IP Address field is only present for frame-relay network interfaces,  
and it is only selectable when Inverse ARP is disabled. The IP address of the  
device on the other end of the virtual circuit may be specified. A static route to  
the far-end network will be added using the interface Subnet-Mask if nonzero. If  
0.0.0.0 has been specified for the Subnet-Mask, a default subnet mask is used based  
on the class of the Far-End Address. (See also Subnet Mask on page 3-7.)  
MTU (Maximum Transmit Unit)  
Read Security: 5  
Defines maximum number of bytes in a datagram transmitted over this interface.  
RIP (Routing Information Protocol)  
Configures RIP on this interface.  
Mode  
Write Security: 3; Read Security: 5  
Allows RIP to be enabled or disabled on a per-interface basis.  
Tx Only  
Rx Only  
RIP advertisements are periodically transmitted, but are not lis-  
tened to on this virtual circuit.  
RIP advertisements are not transmitted on this virtual circuit, but  
they are listened to.  
Tx and Rx RIP advertisements are periodically transmitted and are lis-  
tened to on this virtual circuit.  
If mode is Off, the following menus will not be visible.  
Protocol  
Write Security: 3; Read Security: 5  
Sets the version of RIP being used on this interface. The options are RIP V1  
and RIP V2.  
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Chapter 3. Operation  
If RIP V2 is used, a user-defined secret will have to be created.  
Method  
Write Security: 3; Read Security: 5  
Defines the method used to send RIP route advertisements. The options are  
listed below:  
None  
All routes in the router table are advertised through this  
interface with no modification of the routing metric.  
Only advertises routes not learned through this interface.  
Split Horizon  
Poison Reverse All routes are advertised, but the routes learned through  
this interface are “poisoned” with an infinite route metric.  
Updates  
Write Security: 3; Read Security: 5  
Defines when RIP advertisements are transmitted.  
Periodic  
RIP advertisements are periodically transmitted.  
Triggered  
RIP advertisements are transmitted only when new routes are  
learned, and learned routes do not age.  
V2 Secret  
Write Security: 3; Read Security: 5  
Defines the secret used to advertise routes when using RIP V2.  
This menu item is visible only if RIP V2 is used.  
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Chapter 4 Configuration Overview and  
Examples  
This chapter provides several step-by-step examples to help you configure your  
ATLAS. Figure 4-1 illustrates an ATLAS configured for the Router option.  
10.100.20.0  
10BaseT  
Router  
IP  
Pkt  
Endpoint 1  
T1  
Port  
Frame Relay  
Network  
Figure 4-1. ATLAS Configured for the Router Option  
The general procedure for configuring the ATLAS depicted in Figure 4-1 is as fol-  
lows:  
1. From Packet Manager/Packet Endpnts/Config, create the frame relay packet  
endpoint. Refer to the Frame Relay User Manual for more information.  
2. From Packet Manager/Packet Endpnts/Config/Sublinks, create the necessary  
PVCs.  
3. From Packet Manager/Packet Cncts, connect the frame relay endpoint to the  
Router.  
4. From Dedicated Map, connect the frame relay packet endpoint to the appropri-  
ate physical interface.  
5. From Router/IP/Interfaces, enable routing on the interface.  
6. (Optional) Configure any static routes that might be required.  
Specific configuration examples included in this chapter are as follows:  
IP Routing Network—ATLAS as the Central-Site Router . . . . . . . . . . . . pg. 4-2  
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Chapter 4. Configuration Overview and Examples  
Example 1: IP Routing Network—ATLAS as the Central-Site Router  
Example 1 (see Figure 4-2) depicts a typical IP routing network using an ATLAS  
as the central-site router. (This ATLAS unit is the ATLAS 800PLUS with a frame  
relay upgrade.) The central-site ATLAS terminates a full T1 (F-T1) frame relay  
connection from the XYZ service provider, and the internal router terminates the  
IP traffic. A TSU 100e with a router module is located at each of the two remote  
sites. To re-create this example, follow the five-step process discussed below.  
10.100.112.0  
Chicago  
L
A
F-T1  
N
TSU 100e  
with router module  
Atlanta  
ATLAS 800PLUS  
with frame relay upgrade  
XYZ Public  
Frame Relay  
T1  
L
10.100.113.0  
A
NewYork  
L
A
N
N
10.100.111.0  
F-T1  
TSU 100e  
with router module  
Figure 4-2. IP Routing Network with ATLAS as the Central-Site Router  
Step 1: Create the packet endpoint.  
See Figure 4-3.  
Figure 4-3. Panel for Creating Packet Endpoint  
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Chapter 4. Configuration Overview and Examples  
Step 2: Create the sublinks or DLCIs for frame relay.  
See Figure 4-4.  
Figure 4-4. Panel for Creating Sublinks  
Step 3: Connect the IP traffic to the internal router.  
See Figure 4-5.  
Figure 4-5. Panel for Connecting IP Traffic to Internal Router  
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Chapter 4. Configuration Overview and Examples  
Step 4: Connect packet endpoint to the appropriate physical inter-  
face.  
See Figure 4-6.  
Figure 4-6. Panel for Connecting Endpoints to Physical Interface  
Step 5: Enable routing on the two interfaces.  
See Figure 4-7.  
Figure 4-7. Panel for Enabling Routing  
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Appendix A  
Glossary  
A-Law  
PCM coding method as defined by the ITU-T. It is a companding standard for converting between  
analog and digital in a PCM system. A-Law is mainly used in Europe. MU-Law is the North Ameri-  
can equivalent.  
ANSI T1.617-D (Annex D)  
See Annex D.  
Annex D  
Standard for frame relay signaling as defined by the American National Standards Institute (ANSI) in  
publication T1.617-D.  
Annex A  
Standard for frame relay signaling as defined by the International Telecommunication Union Telecom-  
munication in publication Q.933-A.  
ARP  
Address Resolution Protocol. A protocol that maps an IP address to an ethernet MAC address.  
BECN  
Backward Explicit Congestion Notification. Sent to the device generating excessive frame relay traffic  
as a means to slow down the flow of data to the network. Compare with FECN.  
CIR  
Committed Information Rate. The guaranteed bandwidth available for customer data under normal  
circumstances.  
DHCP  
Dynamic Host Configuration Protocol. Allows dynamic IP address allocation.  
DID  
Direct Inward Dial. Digits received or transmitted that allow the attached equipment to further route a  
call.  
Discard Eligible (DE)  
A flag that can be set to indicate to the network that if excess traffic is received this frame can be dis-  
carded if necessary.  
DLCI  
Data Link Connection Identifier. Identifies each virtual circuit within a shared physical channel.  
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Appendix A. Glossary  
FECN  
Forward Explicit Congestion Notification. Sent to the device receiving data from the frame relay net-  
work to indicate that there is congestion in the receive direction. The receiving DTE device should  
take action to slow down traffic from the remote end. Compare with BECN.  
FRAD  
Frame Relay Access Device. Any equipment that provides a connection between a frame relay net-  
work and a LAN.  
Frame Relay  
A subset of the X.25 packet switching protocol that allows for efficient transmission of data by utiliz-  
ing many virtual circuits on a single physical interface.  
Full Status Poll  
A poll that occurs each N391 polls and reports the status of each PVC. During this poll the frame relay  
switch can also notify the user side of the UNI of any creation or deletion of frame relay PVCs.  
G.723.1  
ITU-specified voice compression algorithm.  
Group of Four  
The Frame Relay Consortium, composed of Cisco Systems, DEC, Nortel, and StrataCom, which  
defined an interface for the UNI.  
HDLC  
High Level Data Link Control. A generic link-level communications protocol developed by the Inter-  
national Organization for Standardization (ISO). HDLC manages synchronous code-transparent,  
serial information transfers over a link connection.  
IAD  
Integrated Access Device. A network access device that provides many services from a single plat-  
form. ATLAS is an IAD.  
IARP  
Inverse Address Resolution Protocol. Used for resolving the protocol address when the hardware  
address is known.  
ICMP  
Internet Control Message Protocol. Specified in RFC-292 to provide diagnostic functions.  
IP  
Internet Protocol. A protocol which provides for transmitting blocks of data between hosts identified  
by fixed-length addresses.  
ITU-T Q.933-A (Annex A)  
See Annex A.  
IXC  
IntereXchange Carrier. Phone companies that connect LECs.  
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Appendix A. Glossary  
LEC  
Local Exchange Carrier. Provides local access to public data and phone networks.  
Link Integrity Poll  
A poll that occurs each T391 seconds to determine the state of the connection to the frame relay switch.  
LLC2  
Logical Link Control Type 2. Upper portion of the Data Link layer (layer 2) that handles flow control  
and error control.  
LMI  
Standard published by the Frame Relay Consortium in 1990 to create a defined interface on the UNI.  
The Consortium was composed of Cisco Systems, DEC, Nortel, and StrataCom, and is commonly  
referred to as the Group of Four. LMI has become a generic term to indicate the type of frame relay  
signaling used and could be used to mean Annex A or Annex D.  
MAC Address  
Data link address that is unique for every device that gets connected to a LAN. Devices on the LAN  
use these addresses to update routing tables.  
MU-Law  
A companding standard for converting between analog and digital in a PCM system. MU-Law is  
mainly used in North America. A-Law is the European equivalent.  
NNI  
A standard interface between two frame relay switches.  
N391  
Defines how many link integrity polls occur before a full status poll. One out of the number defined in  
N391 is a full status poll. Default is 6.  
N392  
Defines how many bad polls can occur within an N393 window before the link is declared down.  
N393  
Defines the number of polls that make up the window used by N392 to determine if a link is opera-  
tional.  
OSI  
Open System Interconnection. It is a standard defined by ISO and the ITU-T to allow interoperability  
between equipment of different vendors.  
Packet  
A transmission that contains both control information and data.  
Packet Endpoint  
A virtual port within ATLAS that a specified physical port terminates its data into for further routing  
by the system.  
Packet Switching  
A method of routing packets that avoids congestion and minimizes delivery time.  
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Appendix A. Glossary  
PCM  
Pulse Code Modulation. The most common method for encoding analog voice into a digital bit  
stream.  
PVC  
Permanent Virtual Circuit. Virtual circuit within the frame relay network that has all bandwidth  
parameters permanently defined upon ordering the circuit.  
QOS  
Quality of service. A means of guaranteeing available bandwidth under normal operating conditions.  
RIP  
Routing Information Protocol. A protocol used to exchange routing information among a set of com-  
puters connected by a LAN. RIP uses hop count as a routing metric.  
Router  
An interface which finds the best path between two networks. Routers forward packets from one net-  
work to another, based on network layer information.  
Routing Metric  
The method by which a routing algorithm determines that one route is better than another. This infor-  
mation is stored in routing tables. Such tables include reliability, delay bandwidth, load, MTUs, com-  
munication costs, and hop count.  
SNA  
Systems Network Architecture. Network architecture developed by IBM in the 1970s.  
SVC  
Switched Virtual Circuit. Virtual circuit within the frame relay network that is created only when  
needed. Bandwidth parameters are defined each time the circuit is created.  
T391  
Defines the time in seconds between frame relay link integrity polls.  
T392  
Defines the time in seconds the frame relay switch will wait for a poll from the user before declaring  
the poll bad.  
TBOP  
Transparent Bit Oriented Protocol. ADTRAN proprietary method for transmitting HDLC traffic  
across a frame relay network.  
Transparent BOP  
See TBOP  
TCP  
Transmission Control Protocol. Connection oriented protocol that provides error control of IP traffic.  
TIA 464A  
Telecommunication Industry Associations standard for DTMF detection and generation.  
A-4  
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Appendix A. Glossary  
UDP  
User Datagram Protocol. Connectionless protocol defined by RFC 768 for transmission of data without  
acknowledgment or error control.  
UNI  
User to Network Interface. Defines the interface between the CPE and the frame relay providers  
switch.  
Voice Compression  
A means of reducing the bandwidth required for transmission of voice traffic with minimal impact on  
the quality of the voice.  
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A-5  
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Appendix A. Glossary  
A-6  
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Index  
Numerics  
I
10BaseT Ethernet port 1-1  
individual interface IP address 3-7  
inverse ARP 3-8  
disabled 3-8  
enabled 3-8  
IP menu 3-3  
ARP cache 3-4  
interface 3-5  
IP address 3-4  
MAC address 3-4  
time 3-4  
A
address resolution protocol (ARP) cache 3-4  
ARP (address resolution protocol) cache 3-4  
C
configuration examples 4-1  
configuring router interfaces 3-7  
configuring router options 3-2  
configuring routing functions 3-1  
contents of route table 3-5  
creating routes 3-3  
Tx pending 3-5  
type 3-4  
interfaces 3-7  
address 3-7  
far-end address 3-8  
IARP 3-8  
MTU 3-8  
network name 3-7  
RIP 3-8  
D
defining gateway interface 3-4  
defining IP address 3-3  
defining IP address of receiving router 3-4  
defining method of sending RIP route  
advertisements 3-9  
method 3-9  
mode 3-8  
defining number of router hops 3-4  
defining periodic updates 3-9  
defining router options 3-2  
defining triggered updates 3-9  
deleting routes 3-3  
protocol 3-8  
updates 3-9  
V2 method 3-9  
subnet mask 3-7  
routes menu 3-5  
flags 3-6  
gateway 3-5  
hops 3-6  
interface 3-6  
IP address 3-5  
netmask 3-5  
TTL 3-6  
E
examples, configuration 4-1  
exchanging routing information 2-1  
F
far-end address 3-8  
flags 3-6  
used 3-6  
static routes 3-3  
gateway 3-4  
hops 3-4  
H
hop count 2-1  
hops, number of 2-1  
interface 3-4  
IP address 3-3  
netmask 3-3  
IP routing 2-1  
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Index  
route discovery 1-2  
O
OSI model, layer 3 2-1  
L
layer 3 of OSI model 2-1  
P
path, selecting criteria for 2-1  
poison reverse 3-9  
M
managing static IP routes 3-3  
menu tree 3-2  
menus, IP 3-3  
ARP cache 3-4  
interface 3-5  
IP address 3-4  
MAC address 3-4  
time 3-4  
R
remote connectivity, providing 3-1  
resolving ethernet address 3-4  
RIP (routing informatin protocol) 2-1  
route  
discovery 1-2  
unreachable 2-1  
route table, contents 3-5  
router  
Tx pending 3-5  
type 3-4  
interfaces 3-7  
address 3-7  
external to integral conversion 1-1  
features 1-2  
far-end address 3-8  
IARP 3-8  
MTU 3-8  
interface name 3-7  
menu 3-1  
menu tree 3-2  
network name 3-7  
RIP 3-8  
overview 1-1  
specifications 1-2  
routing  
method 3-9  
mode 3-8  
information protocol 2-1  
IP 2-1  
number of hops 2-1  
preferred route 2-1  
process 2-1  
protocol 3-8  
updates 3-9  
V2 secret 3-9  
subnet mask 3-7  
routes 3-5  
flags 3-6  
gateway 3-5  
hops 3-6  
S
setting protocol version of RIP 3-8  
split horizon 3-9  
static IP routes, managing 3-3  
subnet mask 3-7  
interface 3-6  
IP address 3-5  
netmask 3-5  
TTL 3-6  
T
used 3-6  
terminal menu structure 3-1  
static routes 3-3  
gateway 3-4  
hops 3-4  
U
interface 3-4  
IP address 3-3  
netmask 3-3  
modifying routes 3-3  
monitoring  
unreachable route 2-1  
updates 3-9  
using RIP V2 3-9  
using router menu to configure routing functions  
3-1  
IP routes 3-3  
router interfaces 3-7  
router options 3-2  
V
V2 secret 3-9  
N
number of bits used in address 3-3  
Index-2  
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Product Support Information  
Presales Inquiries and Applications Support  
Please contact your local distributor, ADTRAN Applications Engineering, or ADTRAN Sales:  
Applications Engineering  
Sales  
(800) 615-1176  
(800) 827-0807  
Post-Sale Support  
Please contact your local distributor first. If your local distributor cannot help, please contact ADT-  
RAN Technical Support and have the unit serial number available.  
Technical Support  
(888) 4ADTRAN  
Repair and Return  
If ADTRAN Technical Support determines that a repair is needed, Technical Support will coordi-  
nate with the Customer and Product Service (CAPS) department to issue an RMA number. For  
information regarding equipment currently in house or possible fees associated with repair, contact  
CAPS directly at the following number:  
CAPS Department  
(256) 963-8722  
Identify the RMA number clearly on the package (below address), and return to the following ad-  
dress:  
ADTRAN Customer and Product Service  
6767 Old Madison Pike  
Building #6 Suite 690  
Huntsville, Alabama 35807  
RMA # _____________________  
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