Internet DRAFT - draft-xu-softwire-encaps-udp
draft-xu-softwire-encaps-udp
Network Working Group X. Xu
Internet-Draft Huawei Technologies
Intended status: Standards Track N. Sheth
Expires: August 16, 2015 Juniper Networks
R. Asati
Cisco Systems
February 12, 2015
BGP Tunnel Encapsulation Attribute for UDP
draft-xu-softwire-encaps-udp-02
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.
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This Internet-Draft will expire on August 16, 2015.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 2
3. BGP Tunnel Type Code for UDP . . . . . . . . . . . . . . . . 2
4. Security Considerations . . . . . . . . . . . . . . . . . . . 3
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 3
6. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 3
7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 3
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 4
8.1. Normative References . . . . . . . . . . . . . . . . . . 4
8.2. Informative References . . . . . . . . . . . . . . . . . 4
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 4
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 the MPLS-in-UDP encapsulation
[I-D.ietf-mpls-in-udp].
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 [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.
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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. Contributors
Note that contributors are listed in alphabetical order according to
their last names.
Yongbing Fan
China Telecom
Email: fanyb@gsta.com
Yiu Lee
Comcast
Email: Yiu_Lee@Cable.Comcast.com
Zhenbin Li
Huawei Technologies
Email: lizhenbin@huawei.com
7. Acknowledgements
Thanks to
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8. References
8.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC5512] Mohapatra, P. and E. Rosen, "The BGP Encapsulation
Subsequent Address Family Identifier (SAFI) and the BGP
Tunnel Encapsulation Attribute", RFC 5512, April 2009.
8.2. Informative References
[I-D.ietf-mpls-in-udp]
Xu, X., Sheth, N., Yong, L., Callon, R., and D. Black,
"Encapsulating MPLS in UDP", draft-ietf-mpls-in-udp-11
(work in progress), January 2015.
[RFC2003] Perkins, C., "IP Encapsulation within IP", RFC 2003,
October 1996.
[RFC2784] Farinacci, D., Li, T., Hanks, S., Meyer, D., and P.
Traina, "Generic Routing Encapsulation (GRE)", RFC 2784,
March 2000.
[RFC3931] Lau, J., Townsley, M., and I. Goyret, "Layer Two Tunneling
Protocol - Version 3 (L2TPv3)", RFC 3931, March 2005.
Authors' Addresses
Xiaohu Xu
Huawei Technologies
No.156 Beiqing Rd
Beijing 100095
CHINA
Phone: +86-10-60610041
Email: xuxiaohu@huawei.com
Nischal Sheth
Juniper Networks
1194 N. Mathilda Ave
Sunnyvale, CA 94089
USA
Email: nsheth@juniper.net
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Rajiv Asati
Cisco Systems
7200 Kit Creek Road
Research Triangle Park,, NC 27709
USA
Email: rajiva@cisco.com
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