Thanks for your help. I will run the tool and get you the diagnostic information (the client I am supporting requires a lot of paperwork to get new software introduced, so it will be a couple of days). Given your previous message, I am surprised to see the ifconfig rx packet counter incrementing and interrupts firing on VMs that have plumbed the VF but aren't subscribed to any multicasts. This also shows up as high CPU utilization on the host CPU cores associated with those VMs..
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