Hey guys,

 

I'm running into a bit of a weird issue. I've had my unraid server for a few months now, but I'm just now noticing that my server has been only running a gbe speeds, I have two 10 gb NICs on my server and a 2.5gb unifi switch. However, whenever I look on my switch it is getting automatically negotiated to 1gb instead of 2.5gb. I've tried swapping out the cables, changing ports, ect. but nothing seems to do it. Whenever I manually go in and swap the port on my switch from 1gb to 2.5gb I just lose connection to my server. I tried to look to see if there was a way to manually set the speed in unraid, but I can't seem to find anything definitive. Here is a little bit of info I was able to pull off my unraid server:

67:00.0 Ethernet controller: Intel Corporation Ethernet Connection X722 for 10GBASE-T (rev 09)
    DeviceName: Intel LAN X722 #1
    Subsystem: Super Micro Computer Inc Ethernet Connection X722 for 10GBASE-T
    Flags: bus master, fast devsel, latency 0, IRQ 47, NUMA node 0, IOMMU group 3
    Memory at 388000000000 (64-bit, prefetchable)
    Memory at 388002800000 (64-bit, prefetchable)
    Expansion ROM at e0d00000 [disabled]
    Capabilities: [40] Power Management version 3
--
67:00.1 Ethernet controller: Intel Corporation Ethernet Connection X722 for 10GBASE-T (rev 09)
    DeviceName: Intel LAN X722 #2
    Subsystem: Super Micro Computer Inc Ethernet Connection X722 for 10GBASE-T
    Flags: bus master, fast devsel, latency 0, IRQ 47, NUMA node 0, IOMMU group 4
    Memory at 388001000000 (64-bit, prefetchable)
    Memory at 388002808000 (64-bit, prefetchable)
    Expansion ROM at e0d80000 [disabled]
    Capabilities: [40] Power Management version 3

Here you can see the driver that is being loaded:

[   23.878407] i40e: Intel(R) Ethernet Connection XL710 Network Driver
[   34.585199] i40e: Intel(R) Ethernet Connection XL710 Network Driver
 

And here you can see what the server is doing to the NICs as they load:

[   34.292135] i40e 0000:67:00.0: i40e_ptp_stop: removed PHC on eth0
[   72.942350] eth0: renamed from vethd72209f
[   73.347126] eth0: renamed from vethd492230
[   73.739363] eth0: renamed from veth51bc1d4
[   74.019265] i40e 0000:67:00.0 eth0: NIC Link is Up, 1000 Mbps Full Duplex, Flow Control: None
[   74.132235] eth0: renamed from vethebbe59c

Does anyone have any suggestions on how I can figure this out? Any help is greatly appreciated. Thanks so much! 

The Intel X722 feature support matrix does not list 2.5GbE as being a supported mode that I can find:

 

https://cdrdv2-public.intel.com/336882/336882_Intel® Ethernet Connection X722 Feature Support Matrix_rev3_3.pdf

 

-- Tom

 

 

Edited January 5, 20251 yr by Tom3
wrong URL

I feel a bit silly... I sorta just assumed that if a NIC was 10gb it would support 2.5gb as well. Thats a bit lame. Not too sure how I'll work around this now. 

If you have an open x1 slot and don't mind an additional 4-8W power, these little guys work well.

3 minutes ago, Veah said:

If you have an open x1 slot and don't mind an additional 4-8W power, these little guys work well.

This a much better solution, I was initially thinking I should just get a new switch haha