The IESG has approved the following document: - 'Resource ReserVation Protocol-Traffic Engineering (RSVP-TE) Path Diversity using Exclude Route' (draft-ietf-teas-lsp-diversity-10.txt) as Proposed Standard This document is the product of the Traffic Engineering Architecture and Signaling Working Group. The IESG contact persons are Alvaro Retana, Alia Atlas and Deborah Brungard. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-teas-lsp-diversity/ Technical Summary Resource ReSerVation Protocol-Traffic Engineering provides support for the communication of exclusion information during label switched path (LSP) setup. A typical LSP diversity use case is for protection, where two LSPs should follow different paths through the network in order to avoid single points of failure, thus greatly improving service availability. This document specifies an approach which can be used for network scenarios where full knowledge of the path(s) is not necessarily known by use of an abstract identifier for the path. Three types of abstract identifiers are specified: client-based, Path Computation Engine (PCE)-based, network-based. This document specifies two new diversity subobjects for the RSVP eXclude Route Object (XRO) and the Explicit Exclusion Route Subobject (EXRS). Working Group Summary An earlier version of this document failed WG last call. This version represents a substantial rework, with additional input from the WG. It now has reasonable support, and no objections. Document Quality The base RSVP-TE mechanisms have been implemented. The extensions defined in this document can coexist with earlier implementations. Multiple implementors and vendors contributed to this document and are expected to implement the defined mechanisms. Personnel Who is the Document Shepherd for this document? Lou Berger Who is the Responsible Area Director? Deborah Brungard
