The IESG has approved the following document: - 'VPN Prefix Outbound Route Filter (VPN Prefix ORF) for BGP-4' (draft-ietf-idr-vpn-prefix-orf-45.txt) as Experimental RFC
This document is the product of the Inter-Domain Routing Working Group. The IESG contact persons are Gunter Van de Velde, Jim Guichard and Ketan Talaulikar. A URL of this Internet-Draft is: https://datatracker.ietf.org/doc/draft-ietf-idr-vpn-prefix-orf/ Technical Summary This draft defines a new type of Outbound Route Filter (ORF), known as the Virtual Private Network (VPN) Prefix ORF. The VPN Prefix ORF mechanism is applicable when VPN routes from different Virtual Routing and Forwarding (VRF) instances are exchanged through a single shared Border Gateway Protocol (BGP) session. The purpose of VPN Prefix ORF mechanism is to control the overload of VPN routes based on RT. With this mechanism, the overload can be limited within the minimum range. Working Group Summary There was some contention with the technical proposal with a split of opinion between WG participants (including operators) on its benefits vis-à-vis existing solutions and especially operational aspects. The chairs brought about an agreement to progress this proposal as experimental to gain wider implementation and deployment feedback before it can be considered for standards track. Debates continued about the technical proposals right up to the WGLC with the authors incorporating some feedback while some other aspects (viz. overload bit, sequence number, RD-based filtering) being retain as part of the rough consensus determination. There is no threat of an appeal. However, one WG participant has expressed disapproval. Document Quality There exists one vendor implementation and another implementation in a popular open source implementation which has not been brought into the mainstream as yet. The implementations do not cover the entire specification and only a subset. Not aware of any deployments. Through the discussion in the WG, the document is determined to be not mature enough for standards track and hence publication is sought as experimental. Further implementation and more so deployment experience will determine progression to standards track with any changes, as necessary. The document was cross-posted to BESS WG which deals with BGP VPN services. It also received early reviews from OPSDIR and SECDIR along with RTGDIR. Personnel The Document Shepherd for this document is Keyur Patel. The Responsible Area Director is Ketan Talaulikar. _______________________________________________ IETF-Announce mailing list -- [email protected] To unsubscribe send an email to [email protected]
