BIER-TE extensions for Packet Replication and Elimination Function (PREF) and OAM
draft-thubert-bier-replication-elimination-03

• Status
• IESG evaluation record
• IESG writeups
• Email expansions
• History

• Versions
• 00
• 01
• 02
• 03

BIER                                                     P. Thubert, Ed.
Internet-Draft                                                     Cisco
Intended status: Standards Track                               T. Eckert
Expires: September 4, 2018                                        Huawei
                                                              Z. Brodard
                                                     Ecole Polytechnique
                                                                H. Jiang
                                                        Telecom Bretagne
                                                           March 3, 2018

   BIER-TE extensions for Packet Replication and Elimination Function
                             (PREF) and OAM
             draft-thubert-bier-replication-elimination-03

Abstract

   This specification extends Bit Index Explicit Replication - Traffic
   Engineering (BIER-TE) forwarding to support in the data plane the
   DetNet Packet Replication and Elimination Functions (PREF).  It also
   provides traceability of links/adjacencies where replication and loss
   happen, in a manner that is agnostic to the forwarding information
   (OAM).

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 September 4, 2018.

Copyright Notice

   Copyright (c) 2018 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

Thubert, et al.         Expires September 4, 2018               [Page 1]
Internet-Draft              BIER-TE PREF/OAM                  March 2018

   (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
   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.  On BIER - Traffic Engineering . . . . . . . . . . . . . . . .   3
   4.  BIER-TE-based Replication and Elimination Control . . . . . .   4
   5.  Elimination Function (Normative)  . . . . . . . . . . . . . .   9
   6.  Summary . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
   7.  Implementation Status . . . . . . . . . . . . . . . . . . . .  12
   8.  Security considerations . . . . . . . . . . . . . . . . . . .  12
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  12
   10. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  12
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  13
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  13
     11.2.  Informative References . . . . . . . . . . . . . . . . .  13
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  14

1.  Introduction

   Deterministic Networking (DetNet) [I-D.ietf-detnet-problem-statement]
   provides a capability to carry unicast or multicast data flows for
   real-time applications with extremely low data loss rates and known
   upper bound maximum latency [I-D.ietf-detnet-architecture].

   DetNet applies to multiple environments where there is a desire to
   replace a point to point serial cable or a multidrop bus by a
   switched or routed infrastucture, in order to scale, lower costs, and
   simplify management.  One classical use case is found in particular
   in the context of the convergence of IT with Operational Technology
   (OT), also referred to as the Industrial Internet.  But there are
   many others use cases [I-D.ietf-detnet-use-cases], for instance in in
   professional audio and video, automotive, radio fronthauls, etc..

   The DetNet data plane alternatives [I-D.dt-detnet-dp-alt] studies the
   applicability of existing and emerging dataplane techniques that can
   be leveraged to enable DetNet properties in IP networks.  One
   critical feature in the dataplane is traceability, the capability to
   control the activity of intermediate nodes on a packet.  For