Hi all, I would appreciate an answer to my question about a certain aspect of Section 8.2.1 of the 7432-bis draft<https://datatracker.ietf.org/doc/html/draft-ietf-bess-rfc7432bis-07#section-8.2.1> that discusses construction of the per-ES Ethernet A-D (EVPN Type 1) route.
1. This section says that "The ESI Label extended community MUST be included in the route". 2. It also says (in Section 8.2.1.1) that "The set of Ethernet A-D routes per ES MUST carry the entire set of RTs for all the EVPN instances to which the Ethernet segment belongs". (The need to advertise a set of per-ES Ethernet A-D (EVPN Type 1) routes for a given MH ES (rather than a single such route pe ES) presumably arises when the number of Route Targets to be advertised for this MH ES exceeds the common limit on the size of the BGP UPDATE message or an implementation-specific on the number of Extended Communities that can be carried in a single UPDATE message). I would like to understand, whether, in the case when multiple per-ES Ethernet A-D routes are advertised for the same MH ES, the ECI Label Extended Community MUST be attached to each of these routes. IMHO and FWIW #1 above suggest that, but an explicit statement would be most helpful. I also assume that, if the ECI Label Extended Community is attached to all the per-ES Ethernet A-D routes in the set, it MUST carry the same flags and the same Label value - is this correct? If yes, could this be explicitly specified in the draft? Your feedback would be highly appreciated. Regards, lots of thanks in advance, and best New Year wishes, Sasha Disclaimer This e-mail together with any attachments may contain information of Ribbon Communications Inc. and its Affiliates that is confidential and/or proprietary for the sole use of the intended recipient. Any review, disclosure, reliance or distribution by others or forwarding without express permission is strictly prohibited. If you are not the intended recipient, please notify the sender immediately and then delete all copies, including any attachments.
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