BGP Flow Specification for SRv6
draft-li-idr-flowspec-srv6-03

Document Type Active Internet-Draft (idr WG)
Authors Zhenbin Li  , Lei Li , Huaimo Chen  , Christoph Loibl  , Yanhe Fan  , Yongqing Zhu  , Xufeng Liu 
Last updated 2020-06-08
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Network Working Group                                              Z. Li
Internet-Draft                                                     L. Li
Intended status: Standards Track                                  Huawei
Expires: December 10, 2020                                       H. Chen
                                                               Futurewei
                                                                C. Loibl
                                               Next Layer Communications
                                                                  Y. Fan
                                                            Casa Systems
                                                                  Y. Zhu
                                                           China Telecom
                                                                  L. Liu
                                                                 Fujitsu
                                                                  X. Liu
                                                          Volta Networks
                                                            June 8, 2020

                    BGP Flow Specification for SRv6
                     draft-li-idr-flowspec-srv6-03

Abstract

   This document proposes extensions to BGP Flow Specification for SRv6
   for filtering SRv6 packets that match a sequence of conditions.

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 [RFC2119].

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).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   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."

   This Internet-Draft will expire on December 10, 2020.

Li, et al.              Expires December 10, 2020               [Page 1]
Internet-Draft       BGP Flow Specification for SRv6           June 2020

Copyright Notice

   Copyright (c) 2020 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
   (https://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
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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.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Definitions and Acronyms  . . . . . . . . . . . . . . . . . .   3
   3.  The Flow Specification Encoding for SRv6  . . . . . . . . . .   4
     3.1.  Type TBD1 - Whole SID . . . . . . . . . . . . . . . . . .   4
     3.2.  Type TBD2 - Some bits of SID  . . . . . . . . . . . . . .   5
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
   6.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .   7
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   7
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .   7
     7.2.  Informative References  . . . . . . . . . . . . . . . . .   7
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   [I-D.ietf-idr-rfc5575bis] describes in details about a new BGP NLRI
   to distribute a flow specification, which is an n-tuple comprising a
   sequence of matching criteria that can be applied to IP traffic.
   [I-D.ietf-idr-flow-spec-v6] extends [I-D.ietf-idr-rfc5575bis] to make
   it also usable and applicable to IPv6 data packets.
   [I-D.ietf-idr-flowspec-l2vpn] extends the flow-spec rules for layer 2
   Ethernet packets.

   Segment Routing (SR) for unicast traffic has been proposed to cope
   with the usecases in traffic engineering, fast re-reroute, service
   chain, etc.  SR architecture can be implemented over an IPv6 data
   plane using a new type of Segment Routing Header (SRH)
   [I-D.ietf-6man-segment-routing-header].  SRv6 Network Programming
   [I-D.filsfils-spring-srv6-network-programming] defines the SRv6
   network programming concept and its most basic functions.  SRv6 SID
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