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Hyper-V and network Teaming

Source: microsoft.public.virtualserver
Sent: 04/28/2008
From: Robert Goodwin
Message:

Server: Dell 1950 with 8 GB RAM and 2 quad core procs. It also has: 1 dual port Intel NIC and 2 onboard Broadcom NICs.
Here is the issue:

I used Broadcom's network management tools (2008 version) to create 2 teams. (adaptive load balancing) Each one with one intel nic and one broadcom nic.
I have 2 team in network connections. On the Host OS, they work just fine.
Within Hyper-V manager I create 2 virtual networks for each team.
I then assign them to the virtual server. IN virtual server I configure IPv4.
At this point the VM should be able to ping the attached switch.

It does not. The interfaces respond that the destination is unreachable (same subnet) The host can still ping the switch but the VM cannot.

I am at my wits end with this. TOE is turned off.

I have tried with intel NICS joined as a team and only broadcom nics, no team works.

I have also tried both the network adapter and legacy network adapter. No luck. I also have added the NICs individually to the VM when I do that they work.

Has anyone come across this at all?

There is nothing about network teams and VMs anywhere.

Thanks

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Related Messages

Re: Hyper-V and network Teaming

Sent: 04/28/2008
From: "Charlie Russel - MVP" <(email address - cut out)>
Message:

There's been at least one other report that teaming of NICs simply doesn't
work with Hyper-V at this point. I haven't tried it, but I honestly can't
say I'm surprised, given how Hyper-V reconfigures things. It is important to
realize that Hyper-V is not a released product, so this may get addressed by
RTM.

--
Charlie.
http://msmvps.com/blogs/xperts64
http://mvp.support.microsoft.com/profile/charlie.russel

"Robert Goodwin" wrote in message
news:(email address - cut out)...

Show quoted text

> Server: Dell 1950 with 8 GB RAM and 2 quad core procs. It also has: 1
> dual port Intel NIC and 2 onboard Broadcom NICs.
> Here is the issue:
>
> I used Broadcom's network management tools (2008 version) to create 2
> teams. (adaptive load balancing) Each one with one intel nic and one
> broadcom nic.
> I have 2 team in network connections. On the Host OS, they work just fine.
> Within Hyper-V manager I create 2 virtual networks for each team.
> I then assign them to the virtual server. IN virtual server I configure
> IPv4.
> At this point the VM should be able to ping the attached switch.
>
> It does not. The interfaces respond that the destination is unreachable
> (same subnet) The host can still ping the switch but the VM cannot.
>
> I am at my wits end with this. TOE is turned off.
>
> I have tried with intel NICS joined as a team and only broadcom nics, no
> team works.
>
> I have also tried both the network adapter and legacy network adapter. No
> luck. I also have added the NICs individually to the VM when I do that
> they work.
>
> Has anyone come across this at all?
>
> There is nothing about network teams and VMs anywhere.
>
> Thanks

Re: Hyper-V and network Teaming

Sent: 04/29/2008
From: "Ryan Sokolowski [MVP]" <(email address - cut out)>
Message:

Yep, I'll throw my support behind Charlie's response (as he has for done for
me on this issue :-> ). We're responded here before that expectations of
having NIC Teaming software play nicely with Hyper-V (or vice-versa) may not
be realistic. :-)

--
Ryan Sokolowski
MVP - Clustering
MCSE, CCNA, CCDA, BCFP

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

Show quoted text

> There's been at least one other report that teaming of NICs simply doesn't
> work with Hyper-V at this point. I haven't tried it, but I honestly can't
> say I'm surprised, given how Hyper-V reconfigures things. It is important
> to realize that Hyper-V is not a released product, so this may get
> addressed by RTM.
>
> --
> Charlie.
> http://msmvps.com/blogs/xperts64
> http://mvp.support.microsoft.com/profile/charlie.russel
>
>
> "Robert Goodwin" wrote in message
> news:(email address - cut out)...
>> Server: Dell 1950 with 8 GB RAM and 2 quad core procs. It also has: 1
>> dual port Intel NIC and 2 onboard Broadcom NICs.
>> Here is the issue:
>>
>> I used Broadcom's network management tools (2008 version) to create 2
>> teams. (adaptive load balancing) Each one with one intel nic and one
>> broadcom nic.
>> I have 2 team in network connections. On the Host OS, they work just
>> fine.
>> Within Hyper-V manager I create 2 virtual networks for each team.
>> I then assign them to the virtual server. IN virtual server I configure
>> IPv4.
>> At this point the VM should be able to ping the attached switch.
>>
>> It does not. The interfaces respond that the destination is unreachable
>> (same subnet) The host can still ping the switch but the VM cannot.
>>
>> I am at my wits end with this. TOE is turned off.
>>
>> I have tried with intel NICS joined as a team and only broadcom nics, no
>> team works.
>>
>> I have also tried both the network adapter and legacy network adapter. No
>> luck. I also have added the NICs individually to the VM when I do that
>> they work.
>>
>> Has anyone come across this at all?
>>
>> There is nothing about network teams and VMs anywhere.
>>
>> Thanks
>

Re: Hyper-V and network Teaming

Sent: 04/29/2008
From: "Bill Grant" <not.available@online>
Message:

There has been a discussion on this in the forums which includes a reply
from someone at Microsoft.

http://forums.microsoft.com/TechNet/ShowPost.aspx?PostID=3256042&SiteID=17

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

Show quoted text

Re: Hyper-V and network Teaming

Sent: 04/29/2008
From: "Bill Grant" <not.available@online>
Message:

I agree with Charlie in that I would not really expect virtual networking
to work for teamed NICs.

From what I know about how virtual networking operates and how teaming
works, I can't see how they would work together. To work with a team, the
virtual networking would need to "virtualize" the team and work with the
teaming software rather than virtualize each NIC and work with the NIC
driver software individually.

"Bill Grant" <not.available@online> wrote in message
news:(email address - cut out)...

Show quoted text

> There has been a discussion on this in the forums which includes a reply
> from someone at Microsoft.
>
> http://forums.microsoft.com/TechNet/ShowPost.aspx?PostID=3256042&SiteID=17
>
> "Charlie Russel - MVP" <(email address - cut out)> wrote in message
> news:(email address - cut out)...
>> There's been at least one other report that teaming of NICs simply
>> doesn't work with Hyper-V at this point. I haven't tried it, but I
>> honestly can't say I'm surprised, given how Hyper-V reconfigures things.
>> It is important to realize that Hyper-V is not a released product, so
>> this may get addressed by RTM.
>>
>> --
>> Charlie.
>> http://msmvps.com/blogs/xperts64
>> http://mvp.support.microsoft.com/profile/charlie.russel
>>
>>
>> "Robert Goodwin" wrote in message
>> news:(email address - cut out)...
>>> Server: Dell 1950 with 8 GB RAM and 2 quad core procs. It also has: 1
>>> dual port Intel NIC and 2 onboard Broadcom NICs.
>>> Here is the issue:
>>>
>>> I used Broadcom's network management tools (2008 version) to create 2
>>> teams. (adaptive load balancing) Each one with one intel nic and one
>>> broadcom nic.
>>> I have 2 team in network connections. On the Host OS, they work just
>>> fine.
>>> Within Hyper-V manager I create 2 virtual networks for each team.
>>> I then assign them to the virtual server. IN virtual server I configure
>>> IPv4.
>>> At this point the VM should be able to ping the attached switch.
>>>
>>> It does not. The interfaces respond that the destination is unreachable
>>> (same subnet) The host can still ping the switch but the VM cannot.
>>>
>>> I am at my wits end with this. TOE is turned off.
>>>
>>> I have tried with intel NICS joined as a team and only broadcom nics, no
>>> team works.
>>>
>>> I have also tried both the network adapter and legacy network adapter.
>>> No luck. I also have added the NICs individually to the VM when I do
>>> that they work.
>>>
>>> Has anyone come across this at all?
>>>
>>> There is nothing about network teams and VMs anywhere.
>>>
>>> Thanks
>>
>

Re: Hyper-V and network Teaming

Sent: 06/05/2008
From: atguilmette
Message:

In light of this, how should we go about adding network fault tolerance to
hyper-v deployments? I'm ramping up for a 8+ node Hyper-V cluster and want
to make sure that as many components as possible are redundant. I would hate
for all of my VMs on a particular host to be unavailable because of a single
point of failure in my network connection path (NIC, cable, external switch).

-ag

"Ryan Sokolowski [MVP]" wrote:

Show quoted text

> Yep, I'll throw my support behind Charlie's response (as he has for done for
> me on this issue :-> ). We're responded here before that expectations of
> having NIC Teaming software play nicely with Hyper-V (or vice-versa) may not
> be realistic. :-)
>
> --
> Ryan Sokolowski
> MVP - Clustering
> MCSE, CCNA, CCDA, BCFP
>
>
> "Charlie Russel - MVP" <(email address - cut out)> wrote in message
> news:(email address - cut out)...
> > There's been at least one other report that teaming of NICs simply doesn't
> > work with Hyper-V at this point. I haven't tried it, but I honestly can't
> > say I'm surprised, given how Hyper-V reconfigures things. It is important
> > to realize that Hyper-V is not a released product, so this may get
> > addressed by RTM.
> >
> > --
> > Charlie.
> > http://msmvps.com/blogs/xperts64
> > http://mvp.support.microsoft.com/profile/charlie.russel
> >
> >
> > "Robert Goodwin" wrote in message
> > news:(email address - cut out)...
> >> Server: Dell 1950 with 8 GB RAM and 2 quad core procs. It also has: 1
> >> dual port Intel NIC and 2 onboard Broadcom NICs.
> >> Here is the issue:
> >>
> >> I used Broadcom's network management tools (2008 version) to create 2
> >> teams. (adaptive load balancing) Each one with one intel nic and one
> >> broadcom nic.
> >> I have 2 team in network connections. On the Host OS, they work just
> >> fine.
> >> Within Hyper-V manager I create 2 virtual networks for each team.
> >> I then assign them to the virtual server. IN virtual server I configure
> >> IPv4.
> >> At this point the VM should be able to ping the attached switch.
> >>
> >> It does not. The interfaces respond that the destination is unreachable
> >> (same subnet) The host can still ping the switch but the VM cannot.
> >>
> >> I am at my wits end with this. TOE is turned off.
> >>
> >> I have tried with intel NICS joined as a team and only broadcom nics, no
> >> team works.
> >>
> >> I have also tried both the network adapter and legacy network adapter. No
> >> luck. I also have added the NICs individually to the VM when I do that
> >> they work.
> >>
> >> Has anyone come across this at all?
> >>
> >> There is nothing about network teams and VMs anywhere.
> >>
> >> Thanks
> >
>

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