https://app.knowbase.one/vault/rfc/docid/7090
RFC6511: Non-Penultimate Hop Popping Behavior and Out-of-Band Mapping for RSVP-TE Label Switched Paths
Internet Engineering Task Force (IETF) Z. Ali Request for Comments: 6511 G. Swallow Category: Standards Track Cisco Systems ISSN: 2070-1721 R. Aggarwal ...