[Idr] I-D Action: draft-ietf-idr-bgp-flowspec-oid-13.txt
internet-drafts@ietf.org Mon, 12 April 2021 23:11 UTC
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Subject: [Idr] I-D Action: draft-ietf-idr-bgp-flowspec-oid-13.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 : Revised Validation Procedure for BGP Flow Specifications Authors : James Uttaro Juan Alcaide Clarence Filsfils David Smith Pradosh Mohapatra Filename : draft-ietf-idr-bgp-flowspec-oid-13.txt Pages : 12 Date : 2021-04-12 Abstract: This document describes a modification to the validation procedure defined for the dissemination of BGP Flow Specifications. The dissemination of BGP Flow Specifications requires that the originator of the Flow Specification matches the originator of the best-match unicast route for the destination prefix embedded in the Flow Specification. For an iBGP received route, the originator is typically a border router within the same autonomous system. The objective is to allow only BGP speakers within the data forwarding path to originate BGP Flow Specifications. Sometimes it is desirable to originate the BGP Flow Specification any place within the autonomous system itself, for example, from a centralized BGP route controller. However, the validation procedure will fail in this scenario. The modification proposed herein relaxes the validation rule to enable Flow Specifications to be originated within the same autonomous system as the BGP speaker performing the validation. Additionally, this document revises AS_PATH validation rules so Flow Specifications received from an eBGP peer can be validated when such peer is a BGP route server. This document updates the validation procedure in RFC8955. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-idr-bgp-flowspec-oid/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-idr-bgp-flowspec-oid-13 https://datatracker.ietf.org/doc/html/draft-ietf-idr-bgp-flowspec-oid-13 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-idr-bgp-flowspec-oid-13 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/
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