Hi Gyan, Thank you for your comments and questions. I tried my best to answer your questions, please see my feedback inline[Chongfeng]: From: Gyan Mishra Date: 2024-07-27 11:59 To: Chongfeng Xie CC: bess; nvo3; xing; sunjb; evyncke Subject: Re: [bess] Fw: New Version Notification for draft-xie-bess-evpn-extension-evn6-00.txt
Hi Chongfeng This is a very intriguing solution. The use case for this solution is EVPN L2 stretch over the internet or disparate IP networks that could be in the same OAD admin domain and have IP connectivity between disparate PEs but do not have the availability to natively extend the EVPN control plane but are able to stitch the data plane. I think if you are able to extend EVPN control plane natively then you would do regular EVPN but if you cannot then you are stuck and this solution fills that gap. I guess there could be case of a Telco cloud providet with hybrid cloud on prem and off prem DC CSP cloud provider through a CXP POP and now this could be method of providing L2 stretch of data plane via EVN6 control plane. [Chongfeng]: Yes, this case is one that EVN6 can be used. With the procedure once the tunnel is established at the beginning once the dynamic mapping happens would you not need DF election ? [Chongfeng]: Currently, the approach in this draft de not need DF election. Since this is all new procedures from RFC 7432 and RFC 8365 base RFCs would you have to write the entire new EVPN control plane procedures. For example how would RFC 9135 inter subnet forwarding work? [Chongfeng]: The draft just defines the extensions to EVPN control plane for EVN6, including two new route types and related procedures. Later on, we can add a section related to RFC9135 if it is necessary. Very nice indeed! [Chongfeng]: Thanks. Kind Regards Gyan Thank you. Best regards Chongfeng On Fri, Jul 26, 2024 at 12:52 AM Chongfeng Xie <chongfeng....@foxmail.com> wrote: Hello everyone, We have submitted a new draft on "EVPN Route Types and Procedures for EVN6" to BESS WG, it proposes extensions to EVPN for EVN6. EVN6 is a Layer-2 network model built on top of the IPv6 underlay to provide connectivity between dispersed customer sites, the draft of EVN6 has been presented in Intarea and v6ops WGs. We are looking forward to your review and comments to this new draft. Thanks. Best regards Chongfeng From: 【外部账号】 Date: 2024-07-26 12:25 To: Chongfeng Xie; Guoliang Han; Jibin Sun; Xing Li Subject: New Version Notification for draft-xie-bess-evpn-extension-evn6-00.txt A new version of Internet-Draft draft-xie-bess-evpn-extension-evn6-00.txt has been successfully submitted by Chongfeng Xie and posted to the IETF repository. Name: draft-xie-bess-evpn-extension-evn6 Revision: 00 Title: EVPN Route Types and Procedures for EVN6 Date: 2024-07-25 Group: Individual Submission Pages: 13 URL: https://www.ietf.org/archive/id/draft-xie-bess-evpn-extension-evn6-00.txt Status: https://datatracker.ietf.org/doc/draft-xie-bess-evpn-extension-evn6/ HTMLized: https://datatracker.ietf.org/doc/html/draft-xie-bess-evpn-extension-evn6 Abstract: EVN6 is a mechanism designed to carry Ethernet virtual networks, providing Ethernet connectivity to customer sites dispersed on public IPv6 networks. At the data layer, EVN6 directly places the Ethernet frames in the payload of IPv6 packet, and dynamically generates the IPv6 addresses of the IPv6 header using host MAC addresses and other information, then sends them into IPv6 network for transmission. This document proposes extensions to EVPN for EVN6, including two new route types and related procedures. The IETF Secretariat _______________________________________________ BESS mailing list -- b...@ietf.org To unsubscribe send an email to bess-le...@ietf.org
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