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topology (OSPF)


topology (default | ipv4-multicast | name) {topology-id number;spf-options {delay milliseconds;holddown milliseconds;rapid-runs number;}}

Hierarchy Level

[edit logical-systems logical-system-name protocols ospf],[edit logical-systems logical-system-name routing-instances routing-instance-name protocols ospf],[edit protocols ospf],[edit routing-instances routing-instance-name protocols ospf]

Release Information

Statement introduced in JUNOS Release 9.0.


Enable a topology for OSPF Multitopology Routing. You must first configure one or more topologies under the [edit routing-options] hierarchy level.


default—Name of the default topology. This topology is automatically created and all routes that correspond to it are automatically added to the inet.0 routing table. You can modify certain default parameters, such as for the shortest-path-first (SPF) algorithm.

ipv4-multicast—Name of the topology for IPv4 multicast traffic.

name—Name of a topology you configured under the [edit routing-options] hierarchy level to create a topology for a specific type of traffic, such as voice or video.

Required Privilege Level

routing—To view this statement in the configuration.

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

Published: 2010-04-14

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