10G NICs are not connected on emulab d430 machines

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Yazhuo Zhang

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Aug 1, 2025, 5:39:32 AMAug 1
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Dear cloudlab admins,

We have set up a few experiments on d430 macines from emulab cluster, which support both 1G and 10G NICs. Our experiments need the 10G NIC to get the expected throughput. 

However, we found 10G NICs are down today (they were up yesterday).  Here are the experiments we are running: 

I wonder if there is some cluster level change on these machines? Could you please let us know when 10G NIC will be connected again? 

Thanks a lot for your help! 

Best,
Yazhuo

Leigh Stoller

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Aug 1, 2025, 7:18:19 AMAug 1
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> On Aug 1, 2025, at 2:39 AM, Yazhuo Zhang <z.ya...@gmail.com> wrote:
>
> We have set up a few experiments on d430 macines from emulab cluster, which support both 1G and 10G NICs. Our experiments need the 10G NIC to get the expected throughput.
>
> However, we found 10G NICs are down today (they were up yesterday). Here are the experiments we are running:
> - https://www.cloudlab.us/status.php?uuid=7d678f86-6ea2-11f0-bc80-e4434b2381fc
> - https://www.cloudlab.us/status.php?uuid=64edd952-6e0e-11f0-bc80-e4434b2381fc

Hi. I reset the vlans on these two experiments. Let us know
if they are still not working.

Thanks
Leigh

Mike Hibler

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Aug 1, 2025, 10:30:32 AMAug 1
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Neither of your current experiments got instantiated with 10Gb links.
It looks like you did not specify a link speed so the mapping tool is
free to choose.

In the small-lan profile, under the Advanced options, you can select an
explicit link speed of 10Gbps.
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Yazhuo Zhang

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Aug 1, 2025, 3:54:23 PMAug 1
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Thanks a lot for the help. It works now!
Have a lovely day!

Best,
Yazhuo

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