Dissemination of flow specification rules

Document Type Replaced Internet-Draft (individual)
Author Pedro Marques 
Last updated 2009-04-28 (latest revision 2007-07-08)
Replaced by RFC 5575
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Intended RFC status (None)
Expired & archived
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Stream Stream state (No stream defined)
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IESG IESG state Replaced by draft-ietf-idr-flow-spec
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document defines a new 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. 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 traffic filtering in the context of a BGP/MPLS VPN service. The information is carried via the Border Gateway Protocol (BGP), thereby reusing protocol algorithms, operational experience and administrative processes such as inter-provider peering agreements.


Pedro Marques (roque@cisco.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)