https://app.knowbase.one/vault/rfc/docid/5090
RFC4667: Layer 2 Virtual Private Network (L2VPN) Extensions for Layer 2 Tunneling Protocol (L2TP)
Network Working Group W. Luo Request for Comments: 4667 Cisco Systems, Inc. Category: Standards Track September 2006 Layer 2 Virtual Private Network (L2VPN) Extensions ...
https://app.knowbase.one/vault/rfc/docid/7003
RFC6439: Routing Bridges (RBridges): Appointed Forwarders
Internet Engineering Task Force (IETF) R. Perlman Request for Comments: 6439 Intel Labs Updates: 6325 D. Eastlake 3rd Category: Standards Track Y. Li IS...