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Network problem with physical machine when Virtual machines is run

Source: microsoft.public.virtualserver
Sent: 04/09/2008
From: Kay_Davis
Message:

When all the Virtual machines are stopped I can connect to the Physical
machine say at A.B.C.30 (Connect includes Ping, WWW, and RDP)

As soon as the first virtual machine is started I lose all connections to .30

I can have virtual machines at .31., .32 and .33 simoutainisly active with
no problenms and can connect to anmy andf all of them at the same time, but
until the last VM is stopped, the physical machine is unreachable.

Other information, at one point the NIC was replaced and I had to recreate
the virtual network that was connected to the new nic.

Help!!!

Kay
------------------------------------------------------------------------------------

Physical Enviroment:
W2K3 R2 Enterprise server fully patched,
Physical Computer Properties

Processors
Physical processors: 2
Logical processors: 4
Processor speed: 2.0 GHz
Processor type: Intel Pentium III class
Processor version: x86 F6 M15 S6
Processor features: MMX, SSE3, x86-64, Intel VT
Memory
Total physical memory: 17408 MB
Available physical memory: 16645 MB
Network connections
Physical network adapter: Broadcom BCM5708C NetXtreme II GigE (NDIS VBD
Client) #2
Operating system Windows Serverâ„¢ 2003, Enterprise Edition
System version 5.2.3790
Service Pack 2

Virtual Enviroment:

Virtual Server version 1.1.603.0 EE R2 SP1
Administration Website version 1.1.603.0 EE R2 SP1
Running time 3 hours, 55 minutes
Support drivers Virtual Machine Monitor (Version 1.1.603.0)
Virtual Machine Network Services Driver (Version 2.6.595.0)

Post Reply | This is Spam! | Mark as Spam

Related Messages

Re: Network problem with physical machine when Virtual machines is run

Sent: 04/10/2008
From: karamatic <(email address - cut out)>
Message:

On 10 Apr, 04:04, "Bill Grant" <not.available@online> wrote:

Hello Bill, this seems interesting for my problem, too (see other
post).
In my NIC properties I have both "LargeSend Offload" (enabled) and
"Checksum Offload" (Tx/Rx Enabled).
Where\how should I operate?
thanks

k

Show quoted text

> That sounds like a problem with the driver for the physical NIC. Have
> you checked for an updated version? You could also try disabling TCP Offload
> in the NIC driver on the host. This clears up a lot of odd things with
> virtual networking.
>
> "Kay_Davis" <(email address - cut out)> wrote in message
>
> news:(email address - cut out)...
>
>
>
> > When all the Virtual machines are stopped I can connect to the Physical
> > machine say at A.B.C.30 (Connect includes Ping, WWW, and RDP)
>
> > As soon as the first virtual machine is started I lose all connections to
> > .30
>
> > I can have virtual machines at .31., .32 and .33 simoutainisly active with
> > no problenms and can connect to anmy andf all of them at the same time,
> > but
> > until the last VM is stopped, the physical machine is unreachable.
>
> > Other information, at one point the NIC was replaced and I had to recreate
> > the virtual network that was connected to the new nic.
>
> > Help!!!
>
> > Kay
> > -------------------------------------------------------------------------------------
>
> > Physical Enviroment:
> > W2K3 R2 Enterprise server fully patched,
> > Physical Computer Properties
>
> > Processors
> > Physical processors: 2
> > Logical processors: 4
> > Processor speed: 2.0 GHz
> > Processor type: Intel Pentium III class
> > Processor version: x86 F6 M15 S6
> > Processor features: MMX, SSE3, x86-64, Intel VT
> > Memory
> > Total physical memory: 17408 MB
> > Available physical memory: 16645 MB
> > Network connections
> > Physical network adapter: Broadcom BCM5708C NetXtreme II GigE (NDIS VBD
> > Client) #2
> > Operating system Windows Server(tm) 2003, Enterprise Edition
> > System version 5.2.3790
> > Service Pack 2
>
> > Virtual Enviroment:
>
> > Virtual Server version 1.1.603.0 EE R2 SP1
> > Administration Website version 1.1.603.0 EE R2 SP1
> > Running time 3 hours, 55 minutes
> > Support drivers Virtual Machine Monitor (Version 1.1.603.0)
> > Virtual Machine Network Services Driver (Version 2.6.595.0)- Nascondi testo tra virgolette -
>

Re: Network problem with physical machine when Virtual machines is run

Sent: 04/10/2008
From: "Bill Grant" <not.available@online>
Message:

That sounds like a problem with the driver for the physical NIC. Have
you checked for an updated version? You could also try disabling TCP Offload
in the NIC driver on the host. This clears up a lot of odd things with
virtual networking.

"Kay_Davis" <(email address - cut out)> wrote in message
news:(email address - cut out)...

Show quoted text

> When all the Virtual machines are stopped I can connect to the Physical
> machine say at A.B.C.30 (Connect includes Ping, WWW, and RDP)
>
> As soon as the first virtual machine is started I lose all connections to
> .30
>
> I can have virtual machines at .31., .32 and .33 simoutainisly active with
> no problenms and can connect to anmy andf all of them at the same time,
> but
> until the last VM is stopped, the physical machine is unreachable.
>
> Other information, at one point the NIC was replaced and I had to recreate
> the virtual network that was connected to the new nic.
>
> Help!!!
>
> Kay
> ------------------------------------------------------------------------------------
>
> Physical Enviroment:
> W2K3 R2 Enterprise server fully patched,
> Physical Computer Properties
>
> Processors
> Physical processors: 2
> Logical processors: 4
> Processor speed: 2.0 GHz
> Processor type: Intel Pentium III class
> Processor version: x86 F6 M15 S6
> Processor features: MMX, SSE3, x86-64, Intel VT
> Memory
> Total physical memory: 17408 MB
> Available physical memory: 16645 MB
> Network connections
> Physical network adapter: Broadcom BCM5708C NetXtreme II GigE (NDIS VBD
> Client) #2
> Operating system Windows Serverâ„¢ 2003, Enterprise Edition
> System version 5.2.3790
> Service Pack 2
>
> Virtual Enviroment:
>
>
> Virtual Server version 1.1.603.0 EE R2 SP1
> Administration Website version 1.1.603.0 EE R2 SP1
> Running time 3 hours, 55 minutes
> Support drivers Virtual Machine Monitor (Version 1.1.603.0)
> Virtual Machine Network Services Driver (Version 2.6.595.0)

Re: Network problem with physical machine when Virtual machines is run

Sent: 04/10/2008
From: "Bill Grant" <not.available@online>
Message:

"karamatic" <(email address - cut out)> wrote in message
news:(email address - cut out)...
I would disable them both and see if it solves the problem.

Show quoted text

> On 10 Apr, 04:04, "Bill Grant" <not.available@online> wrote:
>> That sounds like a problem with the driver for the physical NIC. Have
>> you checked for an updated version? You could also try disabling TCP
>> Offload
>> in the NIC driver on the host. This clears up a lot of odd things with
>> virtual networking.
>>
>
> Hello Bill, this seems interesting for my problem, too (see other
> post).
> In my NIC properties I have both "LargeSend Offload" (enabled) and
> "Checksum Offload" (Tx/Rx Enabled).
> Where\how should I operate?
> thanks
>
> k
>

Post Reply | This is Spam! | Mark as Spam

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