Internet DRAFT - draft-xu-softwire-encaps-vxlan-gpe

draft-xu-softwire-encaps-vxlan-gpe



Network Working Group                                              X. Xu  
Internet Draft                                                   L. Yong 
Category: Standard Track                                          Huawei 
                                                                        
                                                                               
                                                                               
Expires: June 2014                                    December 20, 2013 
                                                                                
                                      
              BGP Tunnel Encapsulation Attribute for VXLAN-gpe  
                                      
                   draft-xu-softwire-encaps-vxlan-gpe-00 

Abstract 

   This document specifies a new Border Gateway Protocol (BGP) Tunnel 
   Type of VXLAN-gpe. 

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 June 20, 2014. 

Copyright Notice 

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



 
 
 
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   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   
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   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 VXLAN-gpe .......................... 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 


















 
 
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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 VXLAN-gpe [VXLAN-gpe] tunnel 
   type. VXLAN-gpe stands for the extended VXLAN encapsulation format 
   which contains a Protocol Type field in the VXLAN header and can be 
   used for both Layer2 and Layer3 VPN service, in other words, the 
   VXLAN-gpe tunnel can be used to transport either IP packets or 
   Ethernet frames. 

2. Terminology 

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

3. BGP Tunnel Type Code for VXLAN-gpe 

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

   This document does not specify any 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 
   the new BGP Tunnel Type code for VXLAN-gpe tunnel as well. No new 
   security risk is introduced by this new Tunnel Type code for them. 

5. IANA Considerations 

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

6. Acknowledgements 

   Thanks to.  



 
 
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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.  

   [VXLAN-gpe] Agarwal, P. et al., "Generic Protocol Extension for 
             VXLAN", draft-quinn-vxlan-gpe-02 (work in progress), 
             December 2013. 

   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. 

   [VXLAN]  Mahalingam, M., Dutt, D., etc, "VXLAN: A Framework for             
             Overlaying Virtualized Layer 2 Networks over Layer 3             
             Networks", draft-mahalingam-dutt-dcops-vxlan-05.txt (work          
             in progress). 

Authors' Addresses 

   Xiaohu Xu 
   Huawei Technologies, 
   Email: xuxiaohu@huawei.com 
        
   Lucy Yong
   Huawei Technologies, USA 
   Email: lucy.yong@huawei.com