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Applicability Statement for Extensions to RSVP for LSP-Tunnels (RFC3210)

IP.com Disclosure Number: IPCOM000006182D
Original Publication Date: 2001-Dec-01
Included in the Prior Art Database: 2001-Dec-12
Document File: 9 page(s) / 18K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

D. Awduche: AUTHOR [+3]

Abstract

This memo discusses the applicability of "Extensions to RSVP (Resource ReSerVation Protocol) for LSP Tunnels". It highlights the protocol's principles of operation and describes the network context for which it was designed. Guidelines for deployment are offered and known protocol limitations are indicated. This document is intended to accompany the submission of "Extensions to RSVP for LSP Tunnels" onto the Internet standards track.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 19% of the total text.

Network Working Group                                         D. Awduche

Request for Comments: 3210                                Movaz Networks

Category: Informational                                       A.  Hannan

                                                             Routingloop

                                                                 X. Xiao

                                                                Photuris

                                                           December 2001

     Applicability Statement for Extensions to RSVP for LSP-Tunnels

Status of this Memo

   This memo provides information for the Internet community.  It does

   not specify an Internet standard of any kind.  Distribution of this

   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2001).  All Rights Reserved.

Abstract

   This memo discusses the applicability of "Extensions to RSVP

   (Resource ReSerVation Protocol) for LSP Tunnels".  It highlights the

   protocol's principles of operation and describes the network context

   for which it was designed.  Guidelines for deployment are offered and

   known protocol limitations are indicated.  This document is intended

   to accompany the submission of "Extensions to RSVP for LSP Tunnels"

   onto the Internet standards track.

1.0 Introduction

   Service providers and users have indicated that there is a great need

   for traffic engineering capabilities in IP networks.  These traffic

   engineering capabilities can be based on Multiprotocol Label

   Switching (MPLS) and can be implemented on label switching routers

   (LSRs) from different vendors that interoperate using a common

   signaling and label distribution protocol.  A description of the

   requirements for traffic engineering in MPLS based IP networks can be

   found in [2].  There is, therefore, a requirement for an open, non-

   proprietary, standards based signaling and label distribution

   protocol for the MPLS traffic engineering application that will allow

   label switching routers from different vendors to interoperate.

   The "Extensions to RSVP for LSP tunnels" (RSVP-TE) specification [1]

   was developed by the IETF MPLS working group to address this

   requirement.  RSVP-TE is a composition of several related proposals

Awduche, et. al.             Informational                      [Page 1]

RFC 3210        Applicability Statement for Extensions     December 2001

   submitted to the IETF MPLS working group.  It contains all the

   necessary objects, packet formats, and procedures required to

   establish and maintain explicit label switched paths (LSPs).

   Explicit LSPs are foundational to the traffic engineering application

   in MPLS based IP networks.  Besides the traffic engineering

   application, the RSVP-TE specification may have other uses within the

   Internet.

   This memo describes the applicability of the RSVP-TE specifications

   [1].  The protocol's principles of operation are highlighted, the

   network context for which it was developed is described, guidelines

   for deployment are offered, and known protocol limitations are

   indicated.

   This applicability statement concerns only the use of RSVP to set up

   unicast LSP-tunnels.  It is noted that not all of the features

   described in RFC2205 [3] are required to support the instantiation

   and maintenance of LSP-tunnels.  Aspects related to the support of

   other features and capabilities of RSVP by an implementation that

   also supports LSP-tunnels are beyond the...