SRv6 for Deterministic Networking (DetNet)
draft-geng-spring-srv6-for-detnet-01

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Last updated 2020-07-13
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Network Working Group                                            X. Geng
Internet-Draft                                                     Z. Li
Intended status: Informational                                   M. Chen
Expires: January 14, 2021                                         Huawei
                                                           July 13, 2020

               SRv6 for Deterministic Networking (DetNet)
                  draft-geng-spring-srv6-for-detnet-01

Abstract

   Deterministic Networking provides service with low jitter, bounded
   latency and low loss rate, using technologies of explicit route,
   resource reservation and service protection.This document specifies
   how to implement Deterministic Networking (DetNet) in a SRv6 Network.

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.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on January 14, 2021.

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

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   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   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 . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  SRv6 for DetNet Overview  . . . . . . . . . . . . . . . . . .   4
   4.  Service Protection  . . . . . . . . . . . . . . . . . . . . .   5
     4.1.  Service Protection Scenarios  . . . . . . . . . . . . . .   5
     4.2.  Data Plane Considerations . . . . . . . . . . . . . . . .   7
     4.3.  Control Plane Considerations  . . . . . . . . . . . . . .   7
   5.  Resource Reservation  . . . . . . . . . . . . . . . . . . . .   8
     5.1.  Resource Reservation  Scenarios . . . . . . . . . . . . .   8
     5.2.  Data Plane Considerations . . . . . . . . . . . . . . . .  10
     5.3.  Control Plane Considerations  . . . . . . . . . . . . . .  10
   6.  Explicit Route  . . . . . . . . . . . . . . . . . . . . . . .  11
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  11
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  11
   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  11
   10. Normative References  . . . . . . . . . . . . . . . . . . . .  11
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

   With more and more applications running in the Internet, quality of
   the service gains more and more attention, especially for some new
   applications, for example Cloud VR, Cloud Game, HDV (high-definition
   video) and so on, SLA (Service Level Agreement), including jitter,
   delay and loss rate, influences the users' experience significantly.
   So SLA guarantee is an important issue which requires new
   technologies and solutions for the network.

   Deterministic Networking (DetNet defined in [RFC8655]) provides a
   capability to carry specified data flows for real-time applications
   with extremely low data loss rates, low jitter and bounded latency
   within a network domain.  Techniques used include: 1) providing
   explicit paths for DetNet flows that satisfies the SLA requirement
   from user and do not immediately change with the network topology; 2)
   reserving data plane resources for DetNet flows along the allocated
   path of the flow; 3) replicates DetNet flows into two or more copies
   and transport different copies through different path in parallel,
   called service protection.

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