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.
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
Required Privilege Level
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.