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topologies (Protocols IS-IS)

 

Syntax

Hierarchy Level

Release Information

Statement introduced before Junos OS Release 7.4.

Description

Configure alternate IS-IS multicast or unicast topologies.

The remaining statements are explained separately. See CLI Explorer.

Note

The IS-IS interface metrics for the IPv4 topology can be configured independently of the IPv6 metrics. You can also selectively disable interfaces from participating in the IPv6 topology while continuing to participate in the IPv4 topology. This lets you exercise control over the paths that unicast data takes through a network.

Default

By default, multicast and unicast topologies are disabled.

Options

ipv4-multicastConfigure alternate IPv4 multicast topologies.
ipv6-multicastConfigure alternate IPv6 multicast topologies.
ipv6-unicastConfigure alternate IPv6 unicast topologies. This statement causes IS-IS to calculate an alternate IPv6 unicast topology, in addition to the normal IPv4 unicast topology, and add the corresponding routes to inet6.0.

Required Privilege Level

routing—To view this statement in the configuration.

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