unmesh Posted February 15, 2021 Share #1 Posted February 15, 2021 (edited) I recently upgraded one of my GbE NICs on a N54L to a 10GbE NIC and was gratified to see that SMB Multichannel still worked with 10+1 GbE on the server and 1+1 GbE on my Windows 10 desktop. Throughput for large file transfers was understandably capped at 200-ish MBps. I then bought another 10GbE NIC to do a similar upgrade on my ESXi7 server which is configured with two vswitches, one for each of its GbE NICs. While ESXi recognizes the Mellanox NIC and I can log into the server on either of the two IP addresses, SMB Multichannel performance is only around 100-ish MBps. smb.conf is identical on both systems and the only change was the NIC upgrade. Any thoughts on why this might be happening? Thanks P.S.: iperf3 does show 1Gbps and 10Gbps when bound to one interface vs the other Edited February 15, 2021 by unmesh Quote Link to comment Share on other sites More sharing options...
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