A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Multiprotocol Label Switching Working Group of the
IETF.
Title : Encoding of Attributes for Multiprotocol Label
Switching (MPLS) Label Switched Path (LSP)
Establishment Using RSVP-TE
Author(s) : A. Farrel, D. Papadimitriou, J. Vasseur
Filename : draft-ietf-mpls-rsvpte-attributes-02.txt
Pages : 15
Date : 2004-1-23
Multiprotocol Label Switching (MPLS) Label Switched Paths (LSPs) may
be established using the Resource Reservation Protocol Traffic
Engineering extensions (RSVP-TE). This protocol includes an object
(the SESSION_ATTRIBUTE object) which carries a flags field used to
indicate options and attributes of the LSP. That flags field has
eight bits allowing for eight options to be set. Recent proposals in
many documents that extend RSVP-TE have suggested uses for each of
the previously unused bits.
This document defines a new object for RSVP-TE messages that allows
the signaling of further attribute bits and also the carriage of
arbitrary attribute parameters to make RSVP-TE easily extensible to
support new requirements. Additionally, this document defines a way
to record the attributes applied to the LSP on a hop-by-hop basis.
The object mechanisms defined in this document are equally applicable
to Generalized MPLS (GMPLS) Packet Switch Capable (PSC) LSPs and to
GMPLS non-PSC LSPs.
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