Segment Routing Policy for Traffic Engineering
draft-filsfils-spring-segment-routing-policy-05

The information below is for an old version of the document
Document Type Active Internet-Draft (candidate for spring WG)
Last updated 2018-05-18 (latest revision 2018-02-28)
Replaced by draft-ietf-spring-segment-routing-policy
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Intended RFC status Proposed Standard
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Network Working Group                                        C. Filsfils
Internet-Draft                                              S. Sivabalan
Intended status: Standards Track                                 K. Raza
Expires: September 1, 2018                                      J. Liste
                                                                 F. Clad
                                                           K. Talaulikar
                                                                  Z. Ali
                                                     Cisco Systems, Inc.
                                                                S. Hegde
                                                  Juniper Networks, Inc.
                                                                D. Voyer
                                                            Bell Canada.
                                                                  S. Lin
                                                             A. Bogdanov
                                                                 P. Krol
                                                            Google, Inc.
                                                            M. Horneffer
                                                        Deutsche Telekom
                                                            D. Steinberg
                                                    Steinberg Consulting
                                                             B. Decraene
                                                            S. Litkowski
                                                Orange Business Services
                                                               P. Mattes
                                                               Microsoft
                                                       February 28, 2018

             Segment Routing Policy for Traffic Engineering
          draft-filsfils-spring-segment-routing-policy-05.txt

Abstract

   Segment Routing allows a headend node to steer a packet flow along
   any path.  Intermediate per-flow states are eliminated thanks to
   source routing.  The headend node steers a flow into an SR Policy.
   The header of a packet steered in an SR Policy is augmented with the
   ordered list of segments associated with that SR Policy.  This
   document details the concepts of SR Policy and steering into an SR
   Policy.

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].

Filsfils, et al.        Expires September 1, 2018               [Page 1]
Internet-Draft                  SR Policy                  February 2018

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
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   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 1, 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
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   5
   2.  SR Policy . . . . . . . . . . . . . . . . . . . . . . . . . .   5
     2.1.  Identification of an SR Policy  . . . . . . . . . . . . .   5
     2.2.  Candidate Path and Segment List . . . . . . . . . . . . .   6
     2.3.  Protocol-Origin of a Candidate Path . . . . . . . . . . .   6
     2.4.  Originator of a Candidate Path  . . . . . . . . . . . . .   7
     2.5.  Discriminator of a Candidate Path . . . . . . . . . . . .   7
     2.6.  Identification of a Candidate Path  . . . . . . . . . . .   8
     2.7.  Preference of a Candidate Path  . . . . . . . . . . . . .   8
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