TOI Author :: Zetang Lei

This feature introduces a way for IS-IS to advertise its IP reachability and SID for loopback interfaces only when routes matching an RCF function are present. One example use-case is to use IS-IS Segment Routing to attract traffic to a router only when routes towards the ultimate destination are present. The RCF function is matched against winning routes in the Unicast RIB (seen with 'show rib route …').

This feature introduces metric profiles to OSPF metric configurations. Metric profiles allow multiple metric configurations to be applied on the interface at the same time. When the interface speed drops below certain thresholds, the interface will automatically change the metric it uses based on the configurations in the metric profile.