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Hyper V and NIC Teaming issue

Hello Experts,

I am having this strange issue with Hyper V and NIC Teaming.

Server runs Windows 2008 R2 Enterprise with Broadcom BCM5709C NetXtreme II installed.

This is what I have done.
Enable Hyper V role->Install Broadcom BACS->Configure teaming->attach teamed NIC with Hyper V

I am having major connectivity issue with all the Hyper V virtual machines. Connections to them seem to go up and down. Ping from virtual machine to its gateway reaches the gateway and replies, but the virtual machine never gets it. Once I randomly disable one of the interface in the teaming, and re-enable it, everything is fine.

Anyone had same experience before?

Thanks,

Jimmy

Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)

Have you configured physical networking correctly?

Microsoft does not support Teaming with Hyper-V
http://support.microsoft.com/kb/968703

Also check this URL
http://social.technet.microsoft.com/Forums/en-US/winserverhyperv/thread/c4223e6f-65c3-4c59-aa6b-5fb70f0e5abf/

jimmy1829

ASKER

Thanks,

Actually we have multiple teaming NICs on that host, only one of them is having issue.

jimmy1829

ASKER

Also, it seems sending packets go through an interface, while receiving packets come from another interface in the teaming.

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bill_lynch

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jimmy1829

ASKER

Thanks Bill, exactly Dell....

Do you happen to remember what they have done?

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OliverLo

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bill_lynch

No sorry not off the top of my head. I had a problem with network traffic. The NIC teams were screaming with broadcasts because of the teaming software. They had me go into the properties of the team and turn on/off options. Apparently teaming with HyperV isn't as mature as it is in the VMware world. That stopped the broadcasting. One thing you could do quickly is compare the team that is having a problem vs a team that isn't to see if they are the same...

jimmy1829

ASKER

thanks,

Dell support guided me to modify the configuration of teaming by changing from load balancing to failover with a standby interface, that seems to solve the issue

bill_lynch

Ahh, thats interesting. Thanks for sharing.