Question
SYS-221H-TNR. In the server, there are 1 x AOC-A25G-B2SM, 1 x AOC-ATG-i2TM and 2 x AOC-S25G-M2S.
When booting to Linux OS (Rocky Linux), there was a Ethernet interface named enp0s20f0u1u1 and it was detected as USB Ethernet.
I checked another SYS-221H-TNR and it had also similar USB Ethernet interface which was named enp0s20f0u1u1c2.
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Answer
This USB LAN is host interface of supermicro system. The host interface is for BIOS and BMC FW update.
If customer wants to disable the USB LAN in OS. Please go to BMC>Configuration>BMC setting> host interface page to disable it.
Please be noted, if customer disabled the host interface, they may not able to update BMC and BIOS FW. Unless customer re-enable it.
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FAQ ID:
43349
Related Category / Keyword:
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Date Posted:
07/04/25
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