Dissemination of Flow Specification Rules for EVPN
draft-hao-idr-flowspec-evpn-00

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Last updated 2014-08-19
Replaced by draft-ietf-idr-flowspec-l2vpn
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IDR                                                          Weiguo Hao
                                                         Qiandeng Liang
                                                         Shunwan Zhuang
Internet Draft                                                   Huawei
Intended status: Standards Track                        August 20, 2014
Expires: February 2015

             Dissemination of Flow Specification Rules for EVPN
                    draft-hao-idr-flowspec-evpn-00.txt

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
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Copyright Notice

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

Hao & Liu,et,al       Expires February 20, 2015               [Page 1]
Internet-Draft             EVPN Flow Spec                  August 2014

   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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   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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Abstract

   This document defines BGP flow-spec extension for Ethernet traffic
   filtering in EVPN network. A new BGP NLRI type (AFI=25, SAFI=TBD)
   value is proposed to identify EVPN flow-spec application. A new
   subset of component types and extended community also are defined.

Table of Contents

   1. Introduction ................................................ 2
   2. Ethernet Flow Specification encoding in BGP.................. 3
   3. Ethernet Flow Specification Traffic Actions.................. 5
   4. Security Considerations...................................... 5
   5. IANA Considerations ......................................... 5
      5.1. Normative References.................................... 6
      5.2. Informative References.................................. 6
   6. Acknowledgments ............................................. 6

1. Introduction

   BGP Flow-spec is an extension to BGP that allows for the
   dissemination of traffic flow specification rules.  It leverages the
   BGP Control Plane to simplify the distribution of ACLs, new filter
   rules can be injected to all BGP peers simultaneously without
   changing router configuration. The typical application of BGP Flow-
   spec is to automate the distribution of traffic filter lists to
   routers for DDOS mitigation.

Hao & Liu,et,al       Expires February 20, 2015               [Page 2]
Internet-Draft             EVPN Flow Spec                  August 2014

   RFC5575 defines a new BGP Network Layer Reachability Information
   (NLRI) format used to distribute traffic flow specification rules.
   NLRI (AFI=1, SAFI=133)is for IPv4 unicast filtering. NLRI (AFI=1,
   SAFI=134)is for BGP/MPLS VPN filtering. The Flow specification match
   part only includes L3/L4 information like source/destination prefix,
   protocol, ports, and etc, so traffic flows can only be selectively
   filtered based on L3/L4 information.
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