The IESG has received a request from the Inter-Domain Routing WG (idr) to consider the following document: - 'Route Leak Prevention and Detection using Roles in UPDATE and OPEN Messages' <draft-ietf-idr-bgp-open-policy-17.txt> as Proposed Standard
The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the [email protected] mailing lists by 2021-12-17. Exceptionally, comments may be sent to [email protected] instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract Route leaks are the propagation of BGP prefixes that violate assumptions of BGP topology relationships, e.g., announcing a route learned from one transit provider to another transit provider or a lateral (i.e., non-transit) peer or announcing a route learned from one lateral peer to another lateral peer or a transit provider. These are usually the result of misconfigured or absent BGP route filtering or lack of coordination between autonomous systems (ASes). Existing approaches to leak prevention rely on marking routes by operator configuration, with no check that the configuration corresponds to that of the eBGP neighbor, or enforcement that the two eBGP speakers agree on the relationship. This document enhances the BGP OPEN message to establish an agreement of the relationship on each eBGP session between autonomous systems in order to enforce appropriate configuration on both sides. Propagated routes are then marked according to the agreed relationship, allowing both prevention and detection of route leaks. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-idr-bgp-open-policy/ No IPR declarations have been submitted directly on this I-D. The document contains these normative downward references. See RFC 3967 for additional information: rfc7908: Problem Definition and Classification of BGP Route Leaks (Informational - Internet Engineering Task Force (IETF)) rfc7938: Use of BGP for Routing in Large-Scale Data Centers (Informational - Internet Engineering Task Force (IETF)) _______________________________________________ IETF-Announce mailing list [email protected] https://www.ietf.org/mailman/listinfo/ietf-announce
