I've been trying to solve this problem for quite awhile. I cannot seem to get above 1Gbe speeds with my 10Gb equipment. I'll summarize my equipment below.
D-Link DGS-1510-28X switches. Firmware 1.70.012 downstairs. Connects to upstairs switch from port 28 to port 28.
D-Link DGS-1510-28X switches. Firmware 1.70.012 upstairs.
Mellanox ConnectX-2 MNPA19-XTR (Firmware 2.9.1000) on port 26 in a Dell T20 with 5.50.14740 driver. Window Server 2016 1607 Build 14393.3930
Mellanox ConnectX-2 MNPA19-XTR (Firmware 2.9.1000) on port 25 in a Threadripper 2950X with 5.50.14740 driver. Windows 10 Pro 20H2 Build 19042.546
Using SFP+ modules from FS. SFP-10GSR-85 DL into the switch.
Done what a lot of forums have suggested.
Jumbo frames set to 9000 on NICs and switch port.
Interrupt Moderation disabled.
Send Buffer 4096.
Performance set to single port.
I've used 1500, 9014 and 9216. Nothing seems to work. Every indication on both PC and switch indicate 10Gb. Just no performance.
D-Link DGS-1510-28X switches. Firmware 1.70.012 downstairs. Connects to upstairs switch from port 28 to port 28.
D-Link DGS-1510-28X switches. Firmware 1.70.012 upstairs.
Mellanox ConnectX-2 MNPA19-XTR (Firmware 2.9.1000) on port 26 in a Dell T20 with 5.50.14740 driver. Window Server 2016 1607 Build 14393.3930
Mellanox ConnectX-2 MNPA19-XTR (Firmware 2.9.1000) on port 25 in a Threadripper 2950X with 5.50.14740 driver. Windows 10 Pro 20H2 Build 19042.546
Using SFP+ modules from FS. SFP-10GSR-85 DL into the switch.
Done what a lot of forums have suggested.
Jumbo frames set to 9000 on NICs and switch port.
Interrupt Moderation disabled.
Send Buffer 4096.
Performance set to single port.
I've used 1500, 9014 and 9216. Nothing seems to work. Every indication on both PC and switch indicate 10Gb. Just no performance.
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