> Intel NICs have had similar problems. One of my circa 2010 servers had the NIC lock up in such a way that passthru traffic to the IPMI was blocked preventing

> Intel NICs have had similar problems. One of my circa 2010 servers had the NIC lock up in such a way that passthru traffic to the IPMI was blocked preventing remote management access. I drove 3.5 hours to the data center to power cycle the system. Investigation eventually turned up an errata for exactly that issue. Suffice it to say that I decommissioned that server as soon as I could. In the past life of being a SysAdmin, we strove for independent OOB NICs whenever possible specifically for this sort of edge case. And then used switched type PDUs (instead of just metered) so that remote power-cycling was possible for the eventuality that the IPMI controller had an OOM and no incantation of `ipmitool` would suffice (<caugh> iDRAC <caugh>). Sounds like you weren't able to get all those nice things. Unfortunate. Been there.