database logo graphic

RFC 5420

"Encoding of Attributes for MPLS LSP Establishment Using Resource Reservation Protocol Traffic Engineering (RSVP-TE)", February 2009

Canonical URL:
http://www.rfc-editor.org/rfc/rfc5420.txt
This document is also available in this non-normative format: PDF.
Status:
PROPOSED STANDARD
Obsoletes:
RFC 4420
Updates:
RFC 3209, RFC 3473
Updated by:
RFC 6510
Authors:
A. Farrel, Ed.
D. Papadimitriou
JP. Vasseur
A. Ayyangarps
Stream:
IETF
Source:
ccamp (rtg)

Cite this RFC: TXT  |  XML

Other actions: Find Errata (if any)  |  Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

Multiprotocol Label Switching (MPLS) Label Switched Paths (LSPs) may be established using the Resource Reservation Protocol Traffic Engineering (RSVP-TE) extensions. This protocol includes an object (the SESSION_ATTRIBUTE object) that 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. This document replaces and obsoletes the previous version of this work, published as RFC 4420. The only change is in the encoding of the Type-Length-Variable (TLV) data structures. [STANDARDS-TRACK]


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


Go to the RFC Editor Homepage.