IGP-TE Extensions for DetNet Information Distribution
draft-geng-detnet-info-distribution-01

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Interdomain Routing Working Group                                X. Geng
Internet-Draft                                                   M. Chen
Intended status: Experimental                                     Huawei
Expires: March 24, 2018                               September 20, 2017

         IGP-TE Extensions for DetNet Information Distribution
                 draft-geng-detnet-info-distribution-01

Abstract

   There are requirements in diverse industries to establish multi-hop
   paths for characterized flows with bounded end-to-end latency and
   extremely low packet loss rate.  Deterministic Networking (DetNet)
   can provide service satisfying the requirements.

   This document describes extensions to IGP-TE, including OSPF-TE and
   ISIS-TE to distribute information of DetNet, which can be used for
   DetNet path computation/selection.

   This document only covers the mechanisms by which DetNet information
   is distributed.  The mechanisms for measuring, calculating or
   configuring DetNet capabilities, resources and other relevant
   parameters are out of the scope.

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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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on March 24, 2018.

Geng & Chen              Expires March 24, 2018                 [Page 1]
Internet-Draft          DetNet Info Distribution          September 2017

Copyright Notice

   Copyright (c) 2017 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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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  DetNet Extensions to OSPF TE  . . . . . . . . . . . . . . . .   4
     3.1.  Congestion Protection Method sub-TLV  . . . . . . . . . .   4
     3.2.  Maximum DetNet Reservable Bandwidth sub-TLV . . . . . . .   5
     3.3.  Available DetNet Bandwidth sub-TLV  . . . . . . . . . . .   6
     3.4.  Min/Max Queuing Delay sub-TLV . . . . . . . . . . . . . .   6
   4.  DetNet Extensions to ISIS TE  . . . . . . . . . . . . . . . .   7
     4.1.  Congestion Protection Method  . . . . . . . . . . . . . .   7
     4.2.  Maximum DetNet Reservable Bandwidth . . . . . . . . . . .   8
     4.3.  Available DetNet Bandwidth  . . . . . . . . . . . . . . .   9
     4.4.  Min/Max Queuing Delay . . . . . . . . . . . . . . . . . .   9
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
     5.1.  Sub-TLVs for Link TLV . . . . . . . . . . . . . . . . . .  10
     5.2.  Sub-TLVs for TLVs 22, 23, 141, 222, and 223 . . . . . . .  10
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  11
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  11
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  11
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .  11
     8.2.  Informative References  . . . . . . . . . . . . . . . . .  11
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

   There are many use cases from diverse industries which have the need
   in common for deterministic service, for example: audio video
   production, industrial process control and mobile access networks.
   The requirements can be summarized as:
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