Hi folks, Can somebody help me understand how RoCE (this is probably RDMA core and not specific to RoCE but I'm not sure) manages destination MAC addresses for its connection? Specifically the problem being observed is a server initiates an RDMA CM disconnect (client replies), client tries to reconnect. Server sends an ARP advertising a different MAC for the IP that the RDMA connection was using. RDMA code keeps sending the RDMA CM connect message to the old MAC for a certains period of time (90-100sec) then it finally sends it to the new MAC address. Question: how does the core RDMA layer manage the MAC address for the connection. Why does it seem like it ignores the ARP updates? Thank you.
