[Search] [txt|pdf|bibtex] [Tracker] [Email] [Diff1] [Diff2] [Nits]

Versions: 00 01 02                                                      
Network Working Group                                              X. Xu
Internet Draft                                                     Z. Li
Category: Standard Track                                          Huawei

                                                                N. Sheth
                                                                 Juniper

                                                                  Y. Lee
                                                                 Comcast

                                                                  Y. Fan
                                                           China Telecom

                                                             Rajiv Asati
                                                           Cisco Systems

Expires: January 2014                                       July 2, 2013


                 BGP Tunnel Encapsulation Attribute for UDP

                      draft-xu-softwire-encaps-udp-01

Abstract

   This document specifies a new Border Gateway Protocol (BGP) Tunnel
   Type of User Datagram Protocol (UDP) tunnels.

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
   Task Force (IETF), its areas, and its working groups. Note that
   other groups may also distribute working documents as Internet-
   Drafts.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time. It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   The list of current Internet-Drafts can be accessed at
   http://www.ietf.org/ietf/1id-abstracts.txt.






Xu, et al.             Expires January 2, 2014                [Page 1]


Internet-Draft    Tunnel Encapsulation Attribute for UDP      July 2013

   The list of Internet-Draft Shadow Directories can be accessed at
   http://www.ietf.org/shadow.html.

   This Internet-Draft will expire on January 2, 2014.

Copyright Notice

   Copyright (c) 2013 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document. Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document. Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Conventions used in this document

   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].

Table of Contents


   1. Introduction ................................................ 3
   2. Terminology ................................................. 3
   3. BGP Tunnel Type Code for UDP ................................ 3
   4. Security Considerations ..................................... 3
   5. IANA Considerations ......................................... 3
   6. Acknowledgements ............................................ 3
   7. References .................................................. 4
      7.1. Normative References ................................... 4
      7.2. Informative References ................................. 4
   Authors' Addresses ............................................. 4










Xu, et al.             Expires January 2, 2014                [Page 2]


Internet-Draft    Tunnel Encapsulation Attribute for UDP      July 2013


1. Introduction

   [RFC5512] specifies a method by which Border Gateway Protocol (BGP)
   speakers can signal tunnel encapsulation information to each other
   and accordingly it defines support for Generic Routing Encapsulation
   (GRE)[RFC2784], Layer Two Tunneling Protocol - Version 3 (L2TPv3)
   [RFC3931] and IP in IP [RFC2003] tunnel types. This document builds
   on [RFC5512] and defines support for the User Datagram Protocol (UDP)
   tunnel type which is applicable to at least the following two
   application cases: IP-in-UDP encapsulation [IP-in-UDP] and MPLS-in-
   UDP encapsulation [MPLS-in-UDP].

2. Terminology

   This memo makes use of the terms defined in [RFC5512].

3. BGP Tunnel Type Code for UDP

   To use either the Encapsulation Subsequent Address Family Identifier
   (SAFI) or the BGP Encapsulation Extended Community defined in
   [RFC5512] to signal the UDP tunnel type information across BGP
   speakers, a new Tunnel Type code (TBD) indicating the UDP tunnel type
   needs to be assigned by IANA.

   This document does not specify any UDP tunnel specific sub-TLV.
   Furthermore, the BGP Encapsulation Network Layer Reachability
   Information (NLRI) Format is not modified by this document.

4. Security Considerations

   The security considerations mentioned in [RFC5512] is applicable to
   this new BGP Tunnel Type code for UDP tunnels as well. No new
   security risk is introduced by this new Tunnel Type code for UDP
   tunnels.

5. IANA Considerations

   A new BGP Tunnel Type code indicating the UDP tunnel type needs to be
   assigned by IANA.

6. Acknowledgements

   Thanks to.






Xu, et al.             Expires January 2, 2014                [Page 3]


Internet-Draft    Tunnel Encapsulation Attribute for UDP      July 2013

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.

   7.2. Informative References

   [RFC5512] Mohapatra, P. and E. Rosen, "The BGP Encapsulation
             Subsequent Address Family Identifier (SAFI) and the BGP
             Tunnel Encapsulation Attribute", RFC 5512, April 2009.

   [RFC2784] Farinacci, D., Li, T., Hanks, S., Meyer, D., and P.
             Traina, "Generic Routing Encapsulation (GRE)", RFC 2784,
             March 2000.

   [RFC3931] Lau, J., Ed., Townsley, M., Ed., and I. Goyret, Ed.,
             "Layer Two Tunneling Protocol - Version 3 (L2TPv3)", RFC
             3931, March 2005.

   [RFC2003] Perkins, C., "IP Encapsulation within IP", RFC 2003,
             October 1996.

   [MPLS-in-UDP] Xu, X., Sheth, N., Yong, L., Pignataro, C., Fan, Y and
             Z. Li, "Encapsulating MPLS in UDP", draft-ietf-mpls-in-udp-
             02.txt (work in progress), June 2013.

   [IP-in-UDP] Xu, X., Yong, L., Lee, Y., Fan, Y., Asati, R and I. van
             Beijnum, "Encapsulating IP in UDP", draft-xu-softwire-ip-
             in-udp-02.txt (work in progress), July 2013.

Authors' Addresses

   Xiaohu Xu
   Huawei Technologies,
   Beijing, China
   Phone: +86-10-60610041
   Email: xuxiaohu@huawei.com


   Zhenbin Li
   Huawei Technologies,
   Beijing, China
   Phone: +86-10-60613676
   Email: lizhenbin@huawei.com




Xu, et al.             Expires January 2, 2014                [Page 4]


Internet-Draft    Tunnel Encapsulation Attribute for UDP      July 2013


   Nischal Sheth
   Juniper Networks
   1194 N. Mathilda Ave
   Sunnyvale, CA 94089
   Email: nsheth@juniper.net


   Yiu Lee
   Comcast
   One Comcast Center
   Philadelphia, PA 1903
   USA
   Email: Yiu_Lee@Cable.Comcast.com


   Yongbing Fan
   China Telecom
   Guangzhou, China.
   Phone: +86 20 38639121
   Email: fanyb@gsta.com


   Rajiv Asati
   Cisco Systems
   7025-4 Kit Creek Rd
   PO Box 14987
   Research Triangle Park, NC 27709
   USA
   Email: rajiva@cisco.com




















Xu, et al.             Expires January 2, 2014                [Page 5]