Bit,Description,Reference 0-4,Unassigned, 5,"SR-Algorithm Capability (TEMPORARY - registered 2023-09-13, publication requested 2025-05-22)",[draft-ietf-pce-sid-algo-12] 6,"Node or Adjacency Identifier (NAI) is supported (N)",[RFC8664] 7,Unlimited Maximum SID Depth (X),[RFC8664]