BGP-LS Advertisement of Segment Routing Service Segments
draft-dawra-idr-bgp-ls-sr-service-segments-04

Document Type Active Internet-Draft (individual)
Authors Gaurav Dawra  , Clarence Filsfils  , Ketan Talaulikar  , Francois Clad  , daniel.bernier@bell.ca  , Jim Uttaro  , Bruno Decraene  , Hani Elmalky  , Xiaohu Xu  , Jim Guichard  , Cheng Li 
Last updated 2020-08-14
Replaces draft-dawra-idr-bgp-sr-service-chaining
Stream (None)
Intended RFC status (None)
Formats plain text pdf htmlized (tools) htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
Inter-Domain Routing                                       G. Dawra, Ed.
Internet-Draft                                                  LinkedIn
Intended status: Standards Track                             C. Filsfils
Expires: February 15, 2021                            K. Talaulikar, Ed.
                                                                 F. Clad
                                                           Cisco Systems
                                                              D. Bernier
                                                             Bell Canada
                                                               J. Uttaro
                                                                    AT&T
                                                             B. Decraene
                                                                  Orange
                                                              H. Elmalky
                                                                Ericsson
                                                                   X. Xu
                                                                 Alibaba
                                                             J. Guichard
                                                  Futurewei Technologies
                                                                   C. Li
                                                     Huawei Technologies
                                                         August 14, 2020

        BGP-LS Advertisement of Segment Routing Service Segments
             draft-dawra-idr-bgp-ls-sr-service-segments-04

Abstract

   Service functions are deployed as, physical or virtualized elements
   along with network nodes or on servers in data centers.  Segment
   Routing (SR) brings in the concept of segments which can be
   topological or service instructions.  Service segments are SR
   segments that are associated with service functions.  SR Policies are
   used for the setup of paths for steering of traffic through service
   functions using their service segments.

   BGP Link-State (BGP-LS) enables distribution of topology information
   from the network to a controller or an application in general so it
   can learn the network topology.  This document specifies the
   extensions to BGP-LS for the advertisement of service functions along
   their associated service segments.  The BGP-LS advertisement of
   service function information along with the network nodes that they
   are attached to, or associated with, enables controllers compute and
   setup service paths in the network.

Dawra, et al.           Expires February 15, 2021               [Page 1]
Internet-Draft  BGP-LS Extensions for SR Service Segments    August 2020

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 February 15, 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
   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  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   4
   2.  BGP-LS Extensions for Service Chaining  . . . . . . . . . . .   4
   3.  Illustration  . . . . . . . . . . . . . . . . . . . . . . . .   7
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   7
     4.1.  Service Type Table  . . . . . . . . . . . . . . . . . . .   7
     4.2.  Segment routing function Identifier(SFI)  . . . . . . . .   8
   5.  Manageability Considerations  . . . . . . . . . . . . . . . .   8
   6.  Operational Considerations  . . . . . . . . . . . . . . . . .   8
     6.1.  Operations  . . . . . . . . . . . . . . . . . . . . . . .   9
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .   9
Show full document text