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Configuring Multitopology Routing in BGP

Multitopology Routing in BGP enables you to configure a community target identifier for each type of traffic, or topology. The target community identifies the destination to which the route is going. BGP uses these community target identifiers to have routes imported into the routing tables for the specific topologies. The forwarding class then determines which table to use to forward traffic.

To configure Multitopology Routing in BGP, include the community target identifier statement at the [edit protocols family (inet | inet6) unicast topology name] hierarchy level:



[edit protocols bgp]
family (inet | inet6) {


unicast {


topology name {

community target identifier;
}


}


}

Multitopology Routing in BGP is also supported for BGP groups and BGP peers. To configure for a BGP group, include the family (inet | inet6) unicast topology name community target identifier statement at the [edit protocols bgp group group-name] hierarchy level. To configure for a BGP peer, include the family (inet | inet6) unicast topology name community target identifier statement at the [edit protocols bgp group group-name neighbor address] hierarchy level.

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