ADTRAN 600R Spezifikationen PDF herunterladen (Seite 74)

Section 4 User Interface Guide Total Access 600R System Manual

L2 PROTOCOL (T1[0] - FRE)

Configure the L2 PROTOCOL parameters and view the status of the T1 interface using Frame Relay protocol

from this menu.

L2 PROTOCOL (T1[0] - FRE) > CONFIG

Configure the L2 PROTOCOL parameters for the T1 interface using the Frame Relay protocol.

L2 PROTOCOL (T1[0] - FRE) > CONFIG > MAINTENANCE PROTOCOL

The Frame Relay maintenance protocol is used on the WAN port. The maintenance protocol is used to send

link status and virtual circuit information between Frame Relay switches and other devices (such as

routers) that communicate with them. Possible choices are as follows:

The default value is

ANNEX D (ANSI).

L2 PROTOCOL (T1[0] - FRE) > CONFIG > POLLING FREQUENCY (5-30)

This parameter is the interval that the unit polls the Frame Relay switch using the maintenance protocol

selected. The unit is required to poll the Frame Relay switch periodically to determine whether the link is

active. The value is in seconds and ranges from

5 to 30 seconds with a default of 10 seconds.

L2 PROTOCOL (T1[0] - FRE) > CONFIG > DLCI MAPPING

This menu allows each DLCI to be mapped to a particular Frame Relay maintenance protocol. Each

protocol parameter can be individually configured for each DLCI. By factory default, the DLCI map is

empty.

When empty and a maintenance protocol other than static is used, the unit will poll the switch to determine

which DLCIs are active. These active DLCIs will attempt to determine the IP addresses on the other end of

the virtual circuit using Inverse ARP (IARP). If there is a response, the network learned will be added to

the router tables and the virtual circuit will be treated as an unnumbered interface. Bridge connections are

made using bridge group 1. When more than one DLCI mapping is listed, the unit will try to match the

DLCIs learned from the Frame Relay switch with the DLCI values in the map. If there is a match, the

protocols specified in the map are used. However, if an active DLCI is not in the list, the unit looks for an

ANNEX D (ANSI)

This is ANSI standard ANSI T1.617-D and is the most commonly used in the

United States.

ANNEX A (Q933A)

This is the CCITT European standard, ITU-T Q.933-A.

LMI

This was developed by a vendor consortium and is also known as the

“Consortium” management interface specification. It is still used by some

carriers in the United States.

STATIC (NO SIG)

This should be selected when there is no Frame Relay switch in the circuit. The

Data Link Connection Identifiers (DLCIs) are assigned in the DLCI Mapping

and must be the same for the device it will communicate with.

1 2 ... 69 70 71 72 73 74 75 76 77 78 79 ... 195 196

Keine Kommentare

ADTRAN 600R Spezifikationen Seite 74