SR Path List - IP Address Support

The segment routing architecture enables ingress nodes in a core network to steer traffic through explicit paths through the network. The segment routing-traffic engineering (SR-TE) next hop is a list or lists of segment identifiers (SIDs). These segment lists represent paths in the network that incoming traffic should take. The incoming traffic may be labeled or IP traffic and the forwarding operation at the ingress node may be a label swap or a destination-based lookup to steer the traffic onto these SR-TE paths in the forwarding path. This feature introduces support for a segment list where IP addresses can be specified for all its hops along the path. Each IP address can be either loopback IP address of a node (router ID) or a link IP address. The configured IP addresses of the hops will be automatically translated to the corresponding labels (SIDs).