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Versions: 00 draft-xu-ospf-routable-ip-address

Network Working Group                                              X. Xu
Internet-Draft                                                    Huawei
Intended status: Standards Track                          April 24, 2014
Expires: October 26, 2014


                Carrying IPv6 Router ID in OSPFv3 RI LSA
                    draft-xu-ospf-ipv6-router-id-00

Abstract

   This document proposes a new TLV within the body of the OSPFv3 Router
   Information (RI) Opaque LSA, called IPv6 Router ID 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 October 26, 2014.

Copyright Notice

   Copyright (c) 2014 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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   described in the Simplified BSD License.






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Internet-Draft                                                April 2014


Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   2
   3.  IPv6 Router ID TLV  . . . . . . . . . . . . . . . . . . . . .   2
   4.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   3
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   3
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   3
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   3
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .   3
     7.2.  Informative References  . . . . . . . . . . . . . . . . .   3
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   3

1.  Introduction

   There are several situations where it is useful for the OSPFv3
   routers in one area to establish the correlations between the IPv6
   addresses and the capabilities of the other OSPFv3 routers in another
   area.  However, in the OSPFv3 Router Information (RI) Opaque LSA as
   defined in [RFC4970], which is used by OSPFv3 routers to announce
   their capabilities, only a 4-octet router ID is contained (in the
   Advertising Router field).  Therefore, this document propose a new
   TLV within the body of this RI LSA to carry an 16-octect router ID.
   This 16-octect router ID MUST be a routable IPv6 global address of
   the router originating the RI LSA.

1.1.  Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

2.  Terminology

   This memo makes use of the terms defined in [RFC4970].

3.  IPv6 Router ID TLV

   A new TLV within the body of the OSPFv3 RI Opaque LSA, called IPv6
   Router ID TLV is defined to carry a routable IPv6 global address of
   the router originating the RI LSA.  The Type of this TLV is TBD, the
   Length is set to 16, and the Value field contains an routable IPv6
   global address of the router originating the RI LSA.  This TLV is
   only applicable to OSPFv3.  The scope of the advertisement depends on
   the application but it is recommended that it SHOULD be domain-wide.





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Internet-Draft                                                April 2014


4.  Acknowledgements

   TBD.

5.  IANA Considerations

   This document includes a request to IANA to allocate a TLV type for
   the new RI LSA TLV proposed in this document.

6.  Security Considerations

   This document does not introduce any new security risk.

7.  References

7.1.  Normative References

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119, March 1997.

   [RFC4970]  Lindem, A., Shen, N., Vasseur, JP., Aggarwal, R., and S.
              Shaffer, "Extensions to OSPF for Advertising Optional
              Router Capabilities", RFC 4970, July 2007.

7.2.  Informative References

   [RFC1195]  Callon, R., "Use of OSI IS-IS for routing in TCP/IP and
              dual environments", RFC 1195, December 1990.

   [RFC5305]  Li, T. and H. Smit, "IS-IS Extensions for Traffic
              Engineering", RFC 5305, October 2008.

   [RFC5308]  Hopps, C., "Routing IPv6 with IS-IS", RFC 5308, October
              2008.

Author's Address

   Xiaohu Xu
   Huawei

   Email: xuxiaohu@huawei.com










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