DetNet SRv6 Data Plane Encapsulation
draft-geng-detnet-dp-sol-srv6-00

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Last updated 2019-03-11
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Network Working Group                                            X. Geng
Internet-Draft                                                   M. Mach
Intended status: Experimental                                     Huawei
Expires: September 12, 2019                               March 11, 2019

                  DetNet SRv6 Data Plane Encapsulation
                    draft-geng-detnet-dp-sol-srv6-00

Abstract

   This document specifies Deterministic Networking data plane operation
   for SRv6 encapsulated user data.

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].

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 September 12, 2019.

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   Copyright (c) 2019 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
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   (https://trustee.ietf.org/license-info) in effect on the date of
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Geng & Mach            Expires September 12, 2019               [Page 1]
Internet-Draft              Abbreviated-Title                 March 2019

   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.  Terminology and Conventions . . . . . . . . . . . . . . . . .   3
     2.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
     2.2.  Conventions . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  SRv6 DetNet Data Plane Overview . . . . . . . . . . . . . . .   4
     3.1.  SRv6 DetNet Data Plane Layers . . . . . . . . . . . . . .   4
     3.2.  SRv6 DetNet Data Plane Scenarios  . . . . . . . . . . . .   4
   4.  SRv6 DetNet Data Plane Solution Considerations  . . . . . . .   6
   5.  SRv6 DetNet Data Plane Solution for Service Sub-layer . . . .   7
     5.1.  TLV Based SRv6 Data Plane Solution  . . . . . . . . . . .   7
       5.1.1.  Encapsulation . . . . . . . . . . . . . . . . . . . .   7
       5.1.2.  Functions . . . . . . . . . . . . . . . . . . . . . .   9
     5.2.  SID Based SRv6 Data Plane Solution  . . . . . . . . . . .  10
       5.2.1.  Encapsulation . . . . . . . . . . . . . . . . . . . .  10
       5.2.2.  Functions . . . . . . . . . . . . . . . . . . . . . .  11
     5.3.  DetNet SID Based SRv6 Data Plane Solution . . . . . . . .  12
       5.3.1.  Encapulation  . . . . . . . . . . . . . . . . . . . .  12
       5.3.2.  Functions . . . . . . . . . . . . . . . . . . . . . .  13
     5.4.  DetNet SRH Based SRv6 Data Plane Solution . . . . . . . .  13
       5.4.1.  Encapsulation . . . . . . . . . . . . . . . . . . . .  13
       5.4.2.  Functions . . . . . . . . . . . . . . . . . . . . . .  14
     5.5.  MPLS Based SRv6 Data Plane Solution . . . . . . . . . . .  14
   6.  SRv6 DetNet Data Plane Solution for Transport Sub-layer . . .  15
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  15
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  15
   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  15
   10. Normative References  . . . . . . . . . . . . . . . . . . . .  15
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  16

1.  Introduction

   Deterministic Networking(DetNet) provides a capability to carry
   specified data flows with extremely low data loss rates and bounded
   latency within a network domain.  DetNet is enabled by a group of
   technologies, such as resource allocation, service protection and
   explicit routes.([I-D.ietf-detnet-architecture])

   Segment Routing(SR) leverages the source routing paradigm.  A ingress
   node steers a packet through an ordered list of instructions, called
   "segments".  SR can be applied over IPv6 data plane using Routing
   Extension Header(SRH).  Besides routing, the segment of SRv6 can
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