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BGP Flow-Spec Extended Community for Traffic Redirect to IP Next Hop

The information below is for an old version of the document.
Document Type
This is an older version of an Internet-Draft whose latest revision state is "Expired".
Expired & archived
Authors Jim Uttaro , Matthieu Texier , David Smith , Wim Henderickx , Adam Simpson
Last updated 2014-01-15 (Latest revision 2013-07-14)
RFC stream Internet Engineering Task Force (IETF)
Additional resources Mailing list discussion
Stream WG state WG Document
Document shepherd (None)
IESG IESG state Expired
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


Flow-spec is an extension to BGP that allows for the dissemination of traffic flow specification rules. This has many possible applications but the primary one for many network operators is the distribution of traffic filtering actions for DDoS mitigation. The flow-spec standard [RFC 5575] defines a redirect-to-VRF action for policy-based forwarding but this mechanism can be difficult to use, particularly in networks without L3 VPNs. This draft proposes a new redirect-to-IP flow-spec action that provides a simpler method of policy-based forwarding. This action is indicated by the presence of a new BGP extended community in the flow-spec route. Many routers already support a redirect-to-IP filter action and, in this case, the only new functionality implied by this draft is the ability to signal the action using flow-spec.


Jim Uttaro
Matthieu Texier
David Smith
Wim Henderickx
Adam Simpson

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