?
Solved

Hyper-V - NIC Teaming for a VM

Posted on 2014-10-09
9
Medium Priority
?
239 Views
Last Modified: 2014-11-12
We're trying to implement NIC teaming within our environment for virtual servers, I'm working on the following 3 scenarios (Windows Server 2012 R2 on host and VM):

1. NIC Teaming on the host
2. NIC Teaming within the VM: Attaching two external NIC's to the VM and implementing NIC Teaming within the VM itself

3. The following scenario is the one I'm having difficulty with:

I would like to create a NIC team on the host and share that team with the VM, I have done the following:
- Created the NIC Team on the host consisting of only 2 NIC's with equal spec
- Within Hyper-V, created the Virtual switch as 'External' and connected to the 'Microsoft Network Adapter Multiplexor Driver' which represents the NIC Team. (I have tested sharing with the host and sometimes not)
- Within the settings of the VM for the network adapter, selected the Virtual Switch for the Team and under advanced features, selected the option for enabling this network adapter to be part of a team

When I start up the VM I have no connectivity to the network, DHCP does not assign a address and even when statically assigned there is no connectivity.

Is there any specific reason for this that I'm missing?

Thanks
0
Comment
Question by:KevinSmrS
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 6
  • 2
9 Comments
 
LVL 9

Expert Comment

by:bas2754
ID: 40370754
If I understand what you are trying to accomplish, you are attempting to Team a NIC within a VM that is connected to a Virtual Switch that is using an already physically teamed NIC?  Is that correct?  

I have not personally tried to do that as we team our nics at the host level and then simply put the a single NIC in the VM connected to the Team.  

I may be incorrect, but this seems like a possible scenario that is not supported under Hyper-V, although I cannot speak authoritatively on this as I, again have never tried it....if I have time today I will test it for myself and see what happens.
0
 

Author Comment

by:KevinSmrS
ID: 40370813
Thanks for the feedback but not quite, basically what you mentioned:
'I have not personally tried to do that as we team our nics at the host level and then simply put the a single NIC in the VM connected to the Team'...
sounds almost exactly what I'm trying to do, could you provide a brief breakdown as to how you went about this?
0
 
LVL 5

Expert Comment

by:Abdul Khadja Alaoudine
ID: 40371049
Usually NIC Teaming on the VM is used for SR-IOV. If you are not using SR-IOV I would suggest you stick with NIC teaming *only* on the Host.

Anyway, if you still want it then try this:

For the virtual NICs in the VM, on the VM's Settings... --> did you go to Advanced Features of the Network Adapter and enabled NIC Teaming?
0
Problems using Powershell and Active Directory?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

 

Author Comment

by:KevinSmrS
ID: 40371199
Thanks for the info, agreed on the teaming only on the host. We don't require SR-IOV therefore we would like to only configure teaming on the host then make the team available to the VM.

I have previously tried the advanced features within the network adapter and enabled the teaming option without success.
0
 

Author Comment

by:KevinSmrS
ID: 40372447
Found another thread covering the same issue as I'm experiencing: Virtual NIC is saying unidentified network

Also, the article mentioned is one I've used before: Configuring Windows Server 2012 NIC Teaming to a Hyper-V Virtual Machine

Unfortunately even though all steps are followed I still end up with a network connectivity issue...
0
 
LVL 5

Expert Comment

by:Abdul Khadja Alaoudine
ID: 40372474
What's the State reported for teamed virtual NICs?

Any error message in System or Application event logs?

Does it work when the virtual NICs are not teamed? both of them?
0
 

Author Comment

by:KevinSmrS
ID: 40374085
When the NIC's:
- Are not teamed, individually they work as expected
- Are teamed on the host, the team works as expected
- Have external virtual switches created for each of them within Hyper-V manager, both attached to a VM and teaming then created within the VM itself, they work as expected

When teaming on the host then making the team available to a VM using the procedure shown in the links above, the VM shows the network as public and has an apipa address assigned, even when statically assigning an address there is no connectivity.

I'll run through the event logs for specific errors and see what can be found.
0
 

Accepted Solution

by:
KevinSmrS earned 0 total points
ID: 40376561
Interesting, the problem has been resolved.

Found the machine being used was built using desktop hardware which seems to have pushed through some limitations to teaming, tried the exact procedure on server hardware and teaming works flawlessly.

Thanks to all for the assistance.
0
 

Author Closing Comment

by:KevinSmrS
ID: 40388194
Found the issue to be the hardware the NIC teaming had been configured on, the issue was not really software related as what most solutions would believe it to be.
0

Featured Post

Are your AD admin tools letting you down?

Managing Active Directory can get complicated.  Often, the native tools for managing AD are just not up to the task.  The largest Active Directory installations in the world have relied on one tool to manage their day-to-day administration tasks: Hyena. Start your trial today.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The following article is comprised of the pearls we have garnered deploying virtualization solutions since Virtual Server 2005 and subsequent 2008 RTM+ Hyper-V in standalone and clustered environments.
Background Information Recently I have fixed file server permission issues for one of my client. The client has 1800 users and one Windows Server 2008 R2 domain joined file server with 12 TB of data, 250+ shared folders and the folder structure i…
In this Micro Tutorial viewers will learn how to use Boot Corrector from Paragon Rescue Kit Free to identify and fix the boot problems of Windows 7/8/2012R2 etc. As an example is used Windows 2012R2 which lost its active partition flag (often happen…
This tutorial will walk an individual through the process of configuring their Windows Server 2012 domain controller to synchronize its time with a trusted, external resource. Use Google, Bing, or other preferred search engine to locate trusted NTP …
Suggested Courses

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question