Hi, I reviewed the change in section 3.7 "optimal forwarding"of NVO3 problem statement. It said: " IP implementations in network endpoints typically do not distinguish between multiple routers on the same subnet - there may only be a single default gateway in use, and any use of multiple routers usually considers all of them to be one-hop away. " It seems you talk about one tenant system is multihomed to multiple NVEs in the same subnet. I am not sure how much of this is related to optimal forwarding? Are you assuming only one NVE is active? or all the NVEs placed in the same subnet are active? or some of NVE placed in the same subnet are active to a set of VMs while the other NVEs placed in the same subnet are active to a set of other VM? or some of NVEs are standby? Is this a multihoming issue? If it is multihoming issue, I thought it is very confusing to relate it to optimal fowarding since they have different solution, e.g.,using VRRP. For optimal forwarding I think the real problem is as you described in the draft, you don't which pair of gateways two communicating VMs are sitting behind or which gateway the destination VM are sitting behind.
In addtion, it is not clear how are you going to deal with optimal forwarding between two VMs belong to different subnet? I think some painpoints are there and need to be clear described. Regards! -Qin ----- Original Message ----- From: Bocci, Matthew (Matthew) To: [email protected] Sent: Friday, February 15, 2013 5:12 PM Subject: [nvo3] WG Last Call for draft-ietf-nvo3-overlay-problem-statement-02 This email begins a two week working group last call for draft-ietf-nvo3-overlay-problem-statement-02.txt Please review the draft and post any comments to the NVO3 list. This working group last call will end on Friday 1st March 2013. Best regards Matthew & Benson ------------------------------------------------------------------------------ _______________________________________________ nvo3 mailing list [email protected] https://www.ietf.org/mailman/listinfo/nvo3
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