How does SR policy operate in Segment Routing Traffic Engineering?

An SR policy for color and endpoint is deactivated at the headend as soon as the headend learns a valid candidate path for the policy.

When "invalidation drop" behavior occurs, the SR policy forwarding entry is removed and the router drops all traffic that is steered into the SR policy.

When a set of SID lists is associated with the SR policy designated path, traffic steering is ECMP-based according to the qualified cost of each SID-list.

An active SR policy installs a BSID-keyed entry in the forwarding table to steer the packets that match the entry to the SR policy SID-list.