[Idr] I-D Action: draft-ietf-idr-bgp-ls-sr-service-segments-00.txt

internet-drafts@ietf.org Fri, 22 October 2021 13:21 UTC

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Subject: [Idr] I-D Action: draft-ietf-idr-bgp-ls-sr-service-segments-00.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Inter-Domain Routing WG of the IETF.

        Title           : BGP-LS Advertisement of Segment Routing Service Segments
        Authors         : Gaurav Dawra
                          Clarence Filsfils
                          Ketan Talaulikar
                          Francois Clad
                          Daniel Bernier
                          Jim Uttaro
                          Bruno Decraene
                          Hani Elmalky
                          Xiaohu Xu
                          Jim Guichard
                          Cheng Li
	Filename        : draft-ietf-idr-bgp-ls-sr-service-segments-00.txt
	Pages           : 12
	Date            : 2021-10-22

   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.

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