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Extensions to Resource Reservation Protocol - Traffic Engineering (RSVP-TE) for Bi-directional Label Switched Paths (LSPs)

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Manav Bhatia , Lizhong Jin , Frederic JOUNAY
Last updated 2011-05-18
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


There are several applications that require symmetric Multiprotocol Label Switching (MPLS) path between two points. This cannot be achieved with regular MPLS as the LSPs are unidirectional. If symmetry is required, a separate LSP in each direction is required for bidirectional traffic flow. Generalized MPLS on the other hand, has provisions for setting up a bidirectional LSP. This document uses the extensions introduced for GMPLS and applies it to regular MPLS for establishing bidirectional LSPs. Additionally, it also describes how bi-directional symmetrical Fast Reroute using both one- to-one and facility backup can be achieved.


Manav Bhatia
Lizhong Jin
Frederic JOUNAY

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)