Hi everyone,

I have an Asus Pro WS WRX80E-SAGE SE WIFI II, which has 2 ethe 10gb ports ( Intel X550-AT2 dual 10Gb Ethernet)
but still it can't reach the speed I attach the commands I gave in the terminal,
does anyone know how to solve this, and maybe activate effective negotiation, or set it fixed to 10gb (if you set it fixed, will I encounter problems if I connect to 2.5?) and I have to do it for both ports

Thank you

 

 

 

root@Tower:~# ethtool eth0
Settings for eth0:
        Supported ports: [ TP ]
        Supported link modes:   100baseT/Full
                                1000baseT/Full
                                10000baseT/Full
                                2500baseT/Full
                                5000baseT/Full
        Supported pause frame use: Symmetric
        Supports auto-negotiation: Yes
        Supported FEC modes: Not reported
        Advertised link modes:  100baseT/Full
                                1000baseT/Full
                                10000baseT/Full
        Advertised pause frame use: Symmetric
        Advertised auto-negotiation: Yes
        Advertised FEC modes: Not reported
        Speed: 1000Mb/s
        Duplex: Full
        Auto-negotiation: on
        Port: Twisted Pair
        PHYAD: 0
        Transceiver: internal
        MDI-X: Unknown
        Supports Wake-on: umbg
        Wake-on: g
        Current message level: 0x00000007 (7)
                               drv probe link
        Link detected: yes
root@Tower:~# ethtool -s eth0 autonegazione
ethtool (-s): unknown parameter 'autonegazione'
root@Tower:~# dmesg | grep -i ixgbe
[   21.131283] ixgbe: Intel(R) 10 Gigabit PCI Express Network Driver
[   21.131287] ixgbe: Copyright (c) 1999-2016 Intel Corporation.
[   21.131359] ixgbe 0000:25:00.0: enabling device (0000 -> 0002)
[   21.824805] ixgbe 0000:25:00.0: Multiqueue Enabled: Rx Queue count = 32, Tx Queue count = 32 XDP Queue count = 0
[   21.928995] ixgbe 0000:25:00.0: 31.504 Gb/s available PCIe bandwidth (8.0 GT/s PCIe x4 link)
[   22.049014] ixgbe 0000:25:00.0: MAC: 4, PHY: 0, PBA No: 000000-000
[   22.049029] ixgbe 0000:25:00.0: 58:11:22:d6:08:75
[   22.218715] ixgbe 0000:25:00.0: Intel(R) 10 Gigabit Network Connection
[   22.218812] ixgbe 0000:25:00.1: enabling device (0000 -> 0002)
[   22.922968] ixgbe 0000:25:00.1: Multiqueue Enabled: Rx Queue count = 32, Tx Queue count = 32 XDP Queue count = 0
[   23.024344] ixgbe 0000:25:00.1: 31.504 Gb/s available PCIe bandwidth (8.0 GT/s PCIe x4 link)
[   23.136501] ixgbe 0000:25:00.1: MAC: 4, PHY: 0, PBA No: 000000-000
[   23.136506] ixgbe 0000:25:00.1: 58:11:22:d6:08:76
[   23.300167] ixgbe 0000:25:00.1: Intel(R) 10 Gigabit Network Connection
[   24.965708] ixgbe 0000:25:00.1: complete
[   24.990701] ixgbe 0000:25:00.0: complete
[   25.029676] ixgbe: Intel(R) 10 Gigabit PCI Express Network Driver
[   25.029679] ixgbe: Copyright (c) 1999-2016 Intel Corporation.
[   25.712624] ixgbe 0000:25:00.0: Multiqueue Enabled: Rx Queue count = 32, Tx Queue count = 32 XDP Queue count = 0
[   25.810969] ixgbe 0000:25:00.0: 31.504 Gb/s available PCIe bandwidth (8.0 GT/s PCIe x4 link)
[   25.924017] ixgbe 0000:25:00.0: MAC: 4, PHY: 0, PBA No: 000000-000
[   25.924025] ixgbe 0000:25:00.0: 58:11:22:d6:08:75
[   26.085345] ixgbe 0000:25:00.0: Intel(R) 10 Gigabit Network Connection
[   26.782255] ixgbe 0000:25:00.1: Multiqueue Enabled: Rx Queue count = 32, Tx Queue count = 32 XDP Queue count = 0
[   26.886173] ixgbe 0000:25:00.1: 31.504 Gb/s available PCIe bandwidth (8.0 GT/s PCIe x4 link)
[   27.006635] ixgbe 0000:25:00.1: MAC: 4, PHY: 0, PBA No: 000000-000
[   27.006645] ixgbe 0000:25:00.1: 58:11:22:d6:08:76
[   27.175336] ixgbe 0000:25:00.1: Intel(R) 10 Gigabit Network Connection
[   27.635423] ixgbe 0000:25:00.0: registered PHC device on eth0
[   31.815969] ixgbe 0000:25:00.0 eth0: NIC Link is Up 1 Gbps, Flow Control: None
[  670.412400] ixgbe 0000:25:00.0 eth0: NIC Link is Down
[  674.819477] ixgbe 0000:25:00.0 eth0: NIC Link is Up 1 Gbps, Flow Control: None

8 hours ago, alessandro15 said:

1.815969] ixgbe 0000:25:00.0 eth0: NIC Link is Up 1 Gbps, Flow Control: None

This card will connect at 10G only.

For making it to work with 2,5 or 5g speeds, you need to activate flow control.

This is essential!

Connection still will be reported as 10G, but it will work then by inserting proper pauses.

 

But "the other side of the cable" needs to support it too. For now, there is no 10G negotiation, so they agreed to the next lower speed of 1G.

 

You did not tell us, which device is attached, so there is no chance to give more clues yet.

 

BTW: there is nothing wrong with the cards. Its because "2.5 and 5G do not exist". They are a marketing thing to be able to sell bad hardware that does not manage to go to the correct high speed of 10G. Later on they have declared this as a good thing to allow cheaper hardware and older cables. The intel card was designed before this happened, so it does not try to offer these fake speeds.

 

Edited February 20, 20242 yr by MAM59

on the other hand there is an Asus GT-AX11000 router with a 2.5GB port (temporary) for configuring the new server, followed by a 10GB switch

 

the switch works at 10gb already tested with a previous server, and even with the previous server always connected to the same router (with 2.5gb port) it worked completely
even the old server had 1 x eth 10gb intel
and I didn't encounter these problems, I'm just wondering if it's possible, if there's a way to activate the negotiation properly or block it at maximum speed, then it will be the other device that creates a "bottleneck" for the device

Hey @alessandro15 Not sure if you still have the same issue. Just managed to enable auto negotiate on my Intel® X550-AT2 NIC.

 

Used:

ethtool -s ethX autoneg on

 

Both the ports are now working with my 2.5G Switch.

 

oh thank you very much now I'll try too (while I did it before I have the entire home network at 10gb)

Edited February 12, 20251 yr by alessandro15

On 2/12/2025 at 4:30 AM, GerritC said:

Hey @alessandro15 Not sure if you still have the same issue. Just managed to enable auto negotiate on my Intel® X550-AT2 NIC.

 

Used:

ethtool -s ethX autoneg on

 

Both the ports are now working with my 2.5G Switch.

 

Thank you! This helped me just now.
How did you make it persistent since reboot reverts it back and you have to run it again?
Was hoping not use user scripts and have it more permanent from the actual config files somewhere.

On 8/17/2025 at 7:22 AM, war_pig said:

Thank you! This helped me just now.
How did you make it persistent since reboot reverts it back and you have to run it again?
Was hoping not use user scripts and have it more permanent from the actual config files somewhere.

Actually, never did.. Just reenter the commands whenever i reboot. But am looking at the config file option now that you mention it. 🥲