The IESG has approved the following document: - 'Definition of an RRO node-id subobject ' <draft-ietf-mpls-nodeid-subobject-07.txt> as a Proposed Standard This document is the product of the Multiprotocol Label Switching Working Group. The IESG contact persons are Alex Zinin and Bill Fenner. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-mpls-nodeid-subobject-07.txt Technical Summary In the context of MPLS TE Fast Reroute, the Merge Point (MP) address is required at the Point of Local Repair (PLR) in order to select a backup tunnel intersecting a fast reroutable Traffic Engineering Label Switched Path (TE LSP) on a downstream Label Switching Router (LSR). However, existing protocol mechanisms are not sufficient to find an MP address in multi-domain routing networks where a domain is defined as an IGP area or an Autonomous System. Hence, the current MPLS Fast Reroute mechanism cannot be used in order to protect inter-domain TE LSPs from a failure of an ABR (Area Border Router) or ASBR (Autonomous System Border Router) respectively. This document specifies the use of existing Route Record Object (RRO) IPv4 and IPv6 sub-objects (with a new flag defined) thus defining the node-id subobject in order to solve this issue. The MPLS Fast reroute mechanism mentioned in this document refers to the "Facility backup" MPLS TE Fast Reroute method. Working Group Summary There was consensus within the WG to progress this document. Protocol Quality Alex Zinin reviewed this document for the IESG. There is at least one implementation of this specification. _______________________________________________ IETF-Announce@ietf.org https://www1.ietf.org/mailman/listinfo/ietf-announce
