AIS AI2524 user manual Configure Frame Relay Switched Virtual Circuits

AI2524 Router Card User’s Manual

Configure Frame

Relay Switched

Virtual Circuits

Currently, access to Frame Relay networks is made through private leased lines at speeds ranging from 56 kbps to 45 Mbps. Frame Relay is a connection-oriented, packet-transfer mechanism that establishes virtual circuits between endpoints.

Switched virtual circuits (SVCs) allow access through a Frame Relay network by setting up a path to the destination endpoints only when th need arises and tearing down the path when it is no longer needed.

You must have these services before Frame Relay SVCs can operate:

zFrame Relay SVC support by the service provider—The service provider's switch must be capable of supporting SVC operation.

z Physical loop connection—A leased line or dedicated line must exist between the router (DTE) and the local Frame Relay switch.

You must enable SVC operation at the interface level. Once it is en- abled at the interface level, it is enabled on any subinterface on that in- terface. One signaling channel, DLCI 0, is set up for the interface, and all SVCs are controlled from the physical interface.

To enable Frame Relay SVC service and set up SVCs, complete these tasks. The subinterface tasks are not required, but offer additional flex- ibility for SVC configuration and operation. The LAPF tasks are not required and not recommended unless you understand thoroughly the impacts on your network.

zConfigure SVCs on a Physical Interface

zConfigure SVCs on a Subinterface (optional

zConfigure a Map Class

zConfigure a Map Group with E.164 or X.121 Addresses

zAssociate the Map Class with Static Protocol Address Maps

zConfigure LAPF Parameters

Configure SVCs on a Physical Interface

To enable SVC operation on a Frame Relay interface, perform these tasks beginning in global configuration mode:

1.Specify the physical interface. interface serial number

2.Specify the interface IP address, if needed. ip address ip-address mask

Page 13-8	August 1997
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