RFC 3147 (rfc3147) - Page 1 of 8

Generic Routing Encapsulation over CLNS Networks

Alternative Format: Original Text Document

Network Working Group                                       P. Christian
Request for Comments: 3147                               Nortel Networks
Category: Informational                                        July 2001


           Generic Routing Encapsulation over CLNS Networks

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 document proposes a method for transporting an arbitrary
   protocol over a CLNS (Connectionless Network Service) network using
   GRE (Generic Routing Encapsulation).  This may then be used as a
   method to tunnel IPv4 or IPv6 over CLNS.

1. Introduction

   RFC 2784 Generic Routing Encapsulation (GRE) [1] provides a standard
   method for transporting one arbitrary network layer protocol over
   another arbitrary network layer protocol.

   RFC 1702 Generic Routing Encapsulation over IPv4 networks [2]
   provides a standard method for transporting an arbitrary network
   layer protocol over IPv4 using GRE.

   However no standard method exists for transporting other network
   layer protocols over CLNS.  This causes lack of interoperability
   between different vendors' products as they provide solutions to
   migrate from CLNS networks to IP networks.  This is a problem
   specifically in, but not limited to, the context of management
   networks for SONET and SDH networks elements.

   Large networks exist for the purpose of providing management
   communications for SONET and SDH network elements.  Standards
   Bellcore GR-253-CORE [3] and ITU-T G.784 [4] mandate that these
   networks are based on CLNS.






Christian                    Informational

Web Standards & Support: