OSPF Extensions in Support of Inter-Autonomous System (AS) MPLS and GMPLS Traffic Engineering
multiprotocol label switching
generalized mpls
gmpls-te
mpls-te
isis-te
open shortest path first
ospf-te
This document describes extensions to the OSPF version 2 and 3 protocols to support Multiprotocol Label Switching (MPLS) and Generalized MPLS (GMPLS) Traffic Engineering (TE) for multiple Autonomous Systems (ASes). OSPF-TE v2 and v3 extensions are defined for the flooding of TE information about inter-AS links that can be used to perform inter-AS TE path computation. No support for flooding information from within one AS to another AS is proposed or defined in this document. [STANDARDS-TRACK]