• [6.9.2] Network connection speed reported as 1000 Mbps when it is really 10000 Mbps


    craigr
    • Minor

    Running 6.9.2 and my full hardware info is in my signature.  I am using an Intel X550-T2 NBASE-T network adaptor.  When I first startup unRAID the System Information correctly reports 10000 Mbps, but after some time unRAID will report 1000 Mbps.  My Brocade ICX6450 correctly reports a proper 10G connection and iperf3 (from nerd tools) confirms that unRAID is truly using the full 10G.  It seems to just be a reporting error by unRAID and that the system is actually at 10000 Mbps.

     

    Thoughts?

     

    craigr




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    The GUI just reports what linux (the driver) is reporting.

    I use 10G interfaces on different systems, have never seen this. When 10G is stays 10G.

     

     

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    On 8/26/2021 at 2:30 AM, ChatNoir said:

    Your diagnostics (when you have the issue) could show more.

    Thanks.  I have been waiting for this to happen again as it used to be a regular occurrence.  However, my server has been up for 81 days without reboot and still reports 10000 Mbps.  It used to always start reporting 1000 Mbps within a few days so I have no idea what changed.

     

    I'll report back if this ever shows up again and post a log.

     

    Thanks all,

    craigr

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    Well it's happening again.  I have screen shots of iperf3 after running, but must admit that I usually get above 9 Gbits/sec, but not right now for some reason.  Screen shot of the unRAID info window and a screen shot of my ICX6450 switch showing a 10G connection.

     

    Thanks,

    craigr

    unraid_un10g.png

    unraid_un10g2.png

    unraid-diagnostics-20211015-2113.zip

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    I just unplugged and re-terminated the CAT6 cable between the switch and unRAID and now have this again.

     

    Thanks,

    craigr

    unraid_10g.png

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    Having same issue. Although I do not think mine has ever shown 10G. What are you setting MTU to? 

     

    Any help would be greatly appreciated. Thanks in advance!

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    On 1/13/2022 at 7:57 AM, Arrior said:

    Having same issue. Although I do not think mine has ever shown 10G. What are you setting MTU to? 

     

    Any help would be greatly appreciated. Thanks in advance!

     

    network.png

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    On 1/13/2022 at 2:57 PM, Arrior said:

    Having same issue. Although I do not think mine has ever shown 10G. What are you setting MTU to? 

     

    Any help would be greatly appreciated. Thanks in advance!

    MTU has nothing to do with speed.

    Link speed is auto negotated, and results in highest speed that both endpoints can support. Obviously for 10G both endpoints must support it, and your cabling too, use CAT6 or better cables.

     

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    5 hours ago, bonienl said:

    Your picture shows 10000 Mb = 10 Gb

    Right, but after it's up for a while than unRAID shows 1000 Mb = 1 Gb

     

    unRAID shows 1GB right now but my switch shows it's connected at 10GB.  I can also push nearly 10GB though the pipe so I know what unRAID is reporting is not correct.

     

    craigr

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    7 hours ago, bonienl said:

    The speed information is read directly from the kernel stats.

    In your case, check:

    cat /sys/class/net/eth0/speed

     

    Sight, that outputs 1000.

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