Advertising Tunnelling Capability in IS-IS
draft-xu-isis-encapsulation-cap-05

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Last updated 2015-06-30
Replaced by draft-ietf-isis-encapsulation-cap
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Network Working Group                                         X. Xu, Ed.
Internet-Draft                                                    Huawei
Intended status: Standards Track                        B. Decraene, Ed.
Expires: January 1, 2016                                          Orange
                                                               R. Raszuk
                                                           Mirantis Inc.
                                                             U. Chunduri
                                                                Ericsson
                                                            L. Contreras
                                                          Telefonica I+D
                                                                L. Jalil
                                                                 Verizon
                                                           June 30, 2015

               Advertising Tunnelling Capability in IS-IS
                   draft-xu-isis-encapsulation-cap-05

Abstract

   Some networks use tunnels for a variety of reasons.  A large variety
   of tunnel types are defined and the ingress needs to select a type of
   tunnel which is supported by the egress.  This document defines how
   to advertise egress tunnel capabilities in IS-IS Router Capability
   TLV.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on January 1, 2016.

Copyright Notice

   Copyright (c) 2015 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Xu, et al.               Expires January 1, 2016                [Page 1]
Internet-Draft            Tunnelling Capability                June 2015

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Advertising Encapsulation Capability  . . . . . . . . . . . .   3
   4.  Tunnel Encapsulation Type . . . . . . . . . . . . . . . . . .   3
   5.  Tunnel Encapsulation Attribute  . . . . . . . . . . . . . . .   5
     5.1.  Tunnel Parameters sub-TLV . . . . . . . . . . . . . . . .   6
     5.2.  Encapsulated Protocol sub-TLV . . . . . . . . . . . . . .   6
     5.3.  End Point sub-TLV . . . . . . . . . . . . . . . . . . . .   6
     5.4.  Color sub-TLV . . . . . . . . . . . . . . . . . . . . . .   6
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
     6.1.  IS-IS Router Capability . . . . . . . . . . . . . . . . .   6
     6.2.  IGP Tunnel Encapsulation Types Registry . . . . . . . . .   6
     6.3.  IGP Tunnel Encapsulation Attribute Types Registry . . . .   7
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .   8
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   8
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .   8
     9.2.  Informative References  . . . . . . . . . . . . . . . . .   9
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  10

1.  Introduction

   Some networks use tunnels for a variety of reasons, such as:

   o  Partial deployment of MPLS-SPRING as described in
      [I-D.xu-spring-islands-connection-over-ip], where IP tunnels are
      used between MPLS-SPRING-enabled routers so as to traverse non-
      MPLS routers.

   o  Partial deployment of MPLS-BIER as described in Section 6.9 of
      [I-D.ietf-bier-architecture], where IP tunnels are used between
      MPLS-BIER-capable routers so as to traverse non MPLS-BIER
      [I-D.ietf-bier-mpls-encapsulation] routers.

Xu, et al.               Expires January 1, 2016                [Page 2]
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