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this post was submitted on 27 Jun 2024
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So I do HPC installations, and using Mellanox/NVIDIA adapters in Ethernet mode absolutely sucks. First, when you initially install them, they’re named something like ens2f0, where “2” generally corresponds to the PCI slot. Pretty easy, until you install MOFED. Yeah, I know you don’t need MOFED, but the drivers included in RHEL are waaay old. Anyway, after installing the newer drivers, that exact same interface becomes ens2f0np0!
What’s even better is there’s no guarantee that a PCI Ethernet card in PCI slot 2 will be “ens2…” which I would argue is predictive!