[Idr] I-D Action: draft-ietf-idr-rfc5575bis-18.txt

internet-drafts@ietf.org Mon, 04 November 2019 19:10 UTC

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Subject: [Idr] I-D Action: draft-ietf-idr-rfc5575bis-18.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           : Dissemination of Flow Specification Rules
        Authors         : Christoph Loibl
                          Susan Hares
                          Robert Raszuk
                          Danny McPherson
                          Martin Bacher
	Filename        : draft-ietf-idr-rfc5575bis-18.txt
	Pages           : 37
	Date            : 2019-11-04

   This document obsoletes both RFC5575 and RFC7674.

   This document defines a Border Gateway Protocol Network Layer
   Reachability Information (BGP NLRI) encoding format, that can be used
   to distribute traffic Flow Specifications.  This allows the routing
   system to propagate information regarding more specific components of
   the traffic aggregate defined by an IP destination prefix.

   It also specifies BGP Extended Community encoding formats, that can
   be used to propagate Traffic Filtering Actions along with the Flow
   Specification NLRI.  Those Traffic Filtering Actions encode actions a
   routing system can take if the packet matches the Flow Specification.

   Additionally, it defines two applications of that encoding format:
   one that can be used to automate inter-domain coordination of traffic
   filtering, such as what is required in order to mitigate
   (distributed) denial-of-service attacks, and a second application to
   provide traffic filtering in the context of a BGP/MPLS VPN service.
   Other applications (ie. centralized control of traffic in a SDN or
   NFV context) are also possible.  Other drafts specify IPv6, MPLS
   addresses, L2VPN addresses, and NV03 encapsulation of IP addresses as
   Flow Specification extensions.

   The information is carried via the BGP, thereby reusing protocol
   algorithms, operational experience, and administrative processes such
   as inter-provider peering agreements.

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