[Idr] I-D Action: draft-ietf-idr-eag-distribution-10.txt

internet-drafts@ietf.org Thu, 21 November 2019 10:27 UTC

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Subject: [Idr] I-D Action: draft-ietf-idr-eag-distribution-10.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           : Distribution of MPLS-TE Extended
    admin Group Using BGP-LS
        Authors         : Zitao Wang
                          Qin Wu
                          Jeff Tantsura
                          Ketan Talaulikar
	Filename        : draft-ietf-idr-eag-distribution-10.txt
	Pages           : 6
	Date            : 2019-11-21

   Administrative groups (commonly referred to as "colors" or "link
   colors") are link attributes that are advertised by link state
   protocols like IS-IS (Intermediate System to Intermediate System) and
   OSPF (Open Shortest Path First) and used for traffic engineering.
   These administrative groups have initially been defined as a fixed-
   length 32-bit bitmask.  As networks grew and more use-cases were
   introduced, the 32-bit length was found to be constraining and hence
   extended administrative groups were introduced in the link state
   protocols.  The 32-bit administrative groups are already advertised
   as link attributes in BGP-LS.  This document introduces extensions to
   BGP-LS (Border Gateway Protocol Link-State) for advertisement of the
   extended administrative groups.

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