topology (Filter-Based Forwarding)
Syntax
Hierarchy Level
Release Information
Statement introduced in Junos OS Release 9.0.
Description
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 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. See Options for more information.
![]() | Note: The options for logical system and routing instance precede the topology statement with the then statement. |
Options
topology-name—Name of a topology against which you want to match traffic.
logical-system logical-system-name topology topology-name—For a nonmaster logical system, specify the name of the logical system and a topology name configured for a nonmaster logical system.
routing-instance routing-instance-name topology topology-name—For a nonmaster routing instance, specify the name of the routing instance and a topology name configured for a nonmaster routing instance.
logical-system logical-system-name routing-instance routing-instance-name topology topology-name—For a nonmaster routing instance configured within a nonmaster logical system, specify the name of the logical system, the name of the routing instance, and a topology name configured for a nonmaster routing instance within a nonmaster logical system.
Required Privilege Level
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
Related Topics
- Configuring Filter-Based Forwarding for Multitopology Routing
- Junos Policy Framework Configuration Guide

