On 05.05 11:16, Alexander Schreiber wrote:
On Sat, May 02, 2026 at 02:20:04PM +0300, Staffan Thomen wrote:Hello list, I have a pair of ixg(4) devices in one of my systems, 82599EB is the model I think ("Intel(R) PRO/10GbE PCI-Express Network Driver, Version - 4.0.1-k") Now I haven't used SFP+ before, but I have heard that there might be vendor lock-in going on that some NICs only accept modules of their own manufacture.Yes, Intel is particularly infamous for e.g. their 10G NICs typically only officially wanting to use Intel marked optics. So you can either buy the Intel optics or ... have optics marked as Intel. E.g. FS.com offers to mark transceivers/DACs as whatever vendor you need. Alternatively, one can use tools like the Flexoptix Flexbox to that that oneself. Similar revenue-enhancing games are also played by some switch vendors.My question then is, will this be a problem for this intel one?Quite likely. Observed behaviour from Intel X553 on Linux with non-Intel DAC: - external "link detected" LED comes on and stays on - poking around with ethtool indicates that the "non-supported" DAC is quite functional, but the NIC refuses to pass traffic because the DAC doesn't say Intel Plug in a non-Intel DAC marked as Intel: all is fine.
Wondeful :-( Thank you for your thorough response though. I have probably heard of fs.com before but then just forgotten about it looks like a worthy site to bookmark! Staffan
Attachment:
OpenPGP_signature.asc
Description: OpenPGP digital signature