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Intel 10Gb on VMware (AMD) ESX 4.0 intermittent problem

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LEdouard at edrnet

Feb 19, 2010, 12:52 PM

Post #1 of 3 (1221 views)
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Intel 10Gb on VMware (AMD) ESX 4.0 intermittent problem

Has anyone experience problems using Intel 10 Gb NIC on VMware (AMD) ESX
4.0?

Some VM's are experiencing intermittent network drop issues even though
the actual VM is online. The VM are unable to ping out or respond to
ping and sometime unable to ping VM-to-Vm on the same physical server.

The problem is only on some VM's on the same ESX host. We move the vms
to another ESX 4.0 with same Intel 10 GB card, the problem is resolve,
but return days later with same VM at new location.

The Intel 10 GB has VMDQ features was not sure if that is part of the
problem.

Thanks in advance

--Louis

sking at kingrst

Feb 20, 2010, 3:06 AM

Post #2 of 3 (1178 views)
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Re: Intel 10Gb on VMware (AMD) ESX 4.0 intermittent problem [In reply to]

Have you applied the ESX patches. I don't run ESX, but ESXi, and there
was a firmware patch that addressed some networking issues on Linux
systems. Might give that a try if you have not already.

On 2/19/10 3:52 PM, LEdouard Louis wrote:
> Has anyone experience problems using Intel 10 Gb NIC on VMware (AMD) ESX
> 4.0?
>
>
>
> Some VM's are experiencing intermittent network drop issues even though
> the actual VM is online. The VM are unable to ping out or respond to
> ping and sometime unable to ping VM-to-Vm on the same physical server.
>
> The problem is only on some VM's on the same ESX host. We move the vms
> to another ESX 4.0 with same Intel 10 GB card, the problem is resolve,
> but return days later with same VM at new location.
>
>
>
> The Intel 10 GB has VMDQ features was not sure if that is part of the
> problem.
>
>
>
> Thanks in advance
>
> --Louis
>
>

--
Steve King

Network Engineer - Liquid Web, Inc.
Cisco Certified Network Associate
CompTIA Linux+ Certified Professional
CompTIA A+ Certified Professional

shane at short

Feb 20, 2010, 3:41 AM

Post #3 of 3 (1177 views)
Permalink

Re: Intel 10Gb on VMware (AMD) ESX 4.0 intermittent problem [In reply to]

We had this once before on an Intel GigE ethernet adapter..
The hacky fix was to leave a ping running continuously (mtr in this case) which solved the problem.

Sounds like a arp/mac learning issue-- I think it got fixed when we re-installed ESXi on that machine.

-Shane

On 20/02/2010, at 7:06 PM, Steven King wrote:

> Have you applied the ESX patches. I don't run ESX, but ESXi, and there
> was a firmware patch that addressed some networking issues on Linux
> systems. Might give that a try if you have not already.
>
> On 2/19/10 3:52 PM, LEdouard Louis wrote:
>> Has anyone experience problems using Intel 10 Gb NIC on VMware (AMD) ESX
>> 4.0?
>>
>>
>>
>> Some VM's are experiencing intermittent network drop issues even though
>> the actual VM is online. The VM are unable to ping out or respond to
>> ping and sometime unable to ping VM-to-Vm on the same physical server.
>>
>> The problem is only on some VM's on the same ESX host. We move the vms
>> to another ESX 4.0 with same Intel 10 GB card, the problem is resolve,
>> but return days later with same VM at new location.
>>
>>
>>
>> The Intel 10 GB has VMDQ features was not sure if that is part of the
>> problem.
>>
>>
>>
>> Thanks in advance
>>
>> --Louis
>>
>>
>
> --
> Steve King
>
> Network Engineer - Liquid Web, Inc.
> Cisco Certified Network Associate
> CompTIA Linux+ Certified Professional
> CompTIA A+ Certified Professional
>
>

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