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topology (Filter-Based Forwarding)


Hierarchy Level


Configure a topology for filter-based forwarding for multitopology routing. The firewall filter you apply to the ingress interface is used to look up traffic against the configured topology, and, if a route matches the conditions you configure for the term, the route is accepted and added to the routing table for the specific topology.

There are multiple ways to configure a topology for filter-based forwarding, depending on the type of instance or logical system you want to specify for the forwarding class.


The options for logical system and routing instance precede the topology statement with the then statement.


topology-name—Name of a topology against which you want to match traffic.

Required Privilege Level

routing—To view this statement in the configuration.

routing-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 9.0.