Hi Linda, *[LES:] It is my opinion that what you propose will not achieve your goals > – in part because IGPs only influence forwarding on a per packet basis – > not a per flow/connection basis.* > > *[Linda] Most vendors do support flow based ECMP, with Shortest Path > computed by attributes advertised by IGP.* >
I am with Les here. ECMP has nothing to do with his point. Draft says: *When those multiple server instances share one IP address (ANYCAST), the transient network and load conditions can be incorporated in selecting an optimal path among server instances for UEs.* So if we apply any new metric to indicate load of a single anycast address how is this going to help anything ? You would need a mechanism where the network is smart and say per src-dst tuple or more spreads the traffic. IGP does not play that game today I am afraid. Thx a lot, R.
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