topology (Protocols BGP)
Statement introduced in Junos OS Release 9.0.
Statement introduced in Junos OS Release 11.3 for the QFX Series.
Enable a topology for BGP multitopology routing. You must first configure one or more topologies under the [edit routing-options] hierarchy level.
Apply the community tags to identify the application topologies by configuring a routing topology name and BGP community value.
In Junos OS, multitopology support for BGP is based on the community value in a BGP route. This configuration determines the association between a topology and one or more community values and populates the topology routing tables. Arriving BGP updates that have a matching community value are replicated in the associated topology routing table. You decide which BGP community values are associated with a given topology.
For example, you can create a configuration that causes BGP updates that are received with community value target:40:40 to be added into topology routing table voice.inet.0 (in addition to the default routing table inet.0). Likewise, you configuration can specify that updates that are received with community value target:50:50 are added into topology routing table video.inet.0 (in addition to the default routing table inet.0).
Syntax: target identifier—Configure the destination to which the route is going.
Required Privilege Level
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.