https://app.knowbase.one/vault/rfc/docid/8563
RFC7885: Seamless Bidirectional Forwarding Detection (S-BFD) for Virtual Circuit Connectivity Verification (VCCV)
Internet Engineering Task Force (IETF) V. Govindan Request for Comments: 7885 C. Pignataro Updates: 5885 Cisco Category: Standards Track July 2016 IS...