I am observing this behavior on a dual-homed server that is sending traffic in active/active mode on its 2 links connected to the same uplink switch. The server is running IPMP so it generates traffic using the same virtual IP on the 2 different interfaces with different MAC.

Am I configuring the server correctly or am I missing something? Thanks

  • If you don't have to change the switch settings, then by logical reasoning, it's expected the MACs will differ, else the switch will get "MAC flapping". – A.B Nov 5 '20 at 20:09

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