Name: draft-ietf-mpls-rsvpte-attributes-04
Title: Encoding of Attributes for Multiprotocol Label Switching (MPLS) Label Switched Path (LSP) Establishment Using RSVP-TE
State: Pending
Authors: Adrian Farrel, Dimitri Papadimitriou, Jean Vasseur
Group: Multiprotocol Label Switching (mpls)
Date: 2004-07-19
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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