If the interface encounters a soft hang, replumb the device.
Use the ipadm(1M) command.
If the interface encounters a hard hang, reboot the server.
If the interface encounters another hard hang, try to capture the trace information by using the dtrace(1M) command, as in this example:
# detrace -F -m 'i40e{trace(timestamp)}' >/tmp/dtrace.out
If the server is panicked, retrieve the crash dump in /var/crash.
If the interface encountered a hard hang or a panic, file a CR at My Oracle Support.
Attach the last page of the dtrace(1M) output or the crash dump file to the CR.
# kstat i40e:* :statistics
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