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Configuring a Link Services Multicast-Capable DLCI

For link services interfaces only, you can configure multiple multicast-capable DLCIs for each MLFR FRF.16 bundle. A channelized interface, such as ls-1/1/1:0, denotes a single MLFR FRF.16 bundle. By default, Frame Relay connections assume unicast traffic. If your Frame Relay switch performs multicast replication, you can configure the link services connection to support multicast traffic by including the multicast-dlci statement:




multicast-dlci dlci-identifier;

You can include this statement at the following hierarchy levels:

[edit interfaces interface-name unit logical-unit-number]
[edit logical-systems logical-system-name interfaces interface-name unit logical-unit-number]

The DLCI identifier is a value from 16 through 1022 that defines the Frame Relay DLCI over which the switch expects to receive multicast packets for replication.

You can configure multicast support only on point-to-multipoint link services connections. Multicast-capable DLCIs are not supported on multilink interfaces.

If keepalives are enabled, causing the interface to send Local Management Interface (LMI) messages during idle times, the number of possible DLCI configurations is limited by the MTU selected for the interface. For more information, see Configuring Link Services Keepalive Settings on Frame Relay LMI.

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