Failover Cluster 2008 R2 - VM lose connectivity after live migration

Hello,
I have a Failover Cluster with 3 server nodes running. I have 2 VMs running in one the the host without problems, but when I do a live migration of the VM to another host the VM lose network connectivity, for example if I leave a ping running, the ping command
has 2 response, and 3 packets lost, then 1 response again, then 4 packets lost again, and so on... If I live migrate the VM to the original host, everything goes OK again.
The same bihavior is for the 2 VMs, but I do a test with a new VM and with that new VM everything Works fine, I can live migrate it to every host.
Any advice?
Cristian L Ruiz

Hi Cristian Ruiz,
What your current host nic settings now, from you description it seems you are using the incorrect network nic design. If you are using iSCSI storage it need use the dedicate
network in cluster.
If your NIC teaming is iconfigured in switch independent + dynamic, please try to disable VMQ on VM Setting for narrow down the issue area.
More information:
VMQ Deep Dive, 1 of 3
http://blogs.technet.com/b/networking/archive/2013/09/10/vmq-deep-dive-1-of-3.aspx
I’m glad to be of help to you!
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are trying to better understand customer views on social support experience, so your participation in this
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Hi!
thank you for your reply!
Yes, We are using iSCSI storage, but it has its own NICs for that (2 independant NIcs just to connect the server with the storage) and they are configured to not use those NICs to cluster communication. The team configuration is just for the LAN connectivity.
The NIC teaming is configured using BACS4 software from a DELL server and in Smart Load Balancing and Failover (as you can see here
http://www.micronova.com.ar/cap01.jpg). The link you passed is for Windows Server 2012 and we are running Windows Server 2008 R2, BUT as you can see in the following capture the NICs has that feature disabled
( http://www.micronova.com.ar/cap02.jpg ).
One test that I'm thinking to do is to remove teaming configuration and test just with one independant NIC for LAN connection. But, I do not know if you think another choice.
Thanks in advance.
Cristian L Ruiz
Sorry, another choice I'm thinking too is to update the driver versión. But the server is in production and I need to take a downtime window for test that.
Cristian L Ruiz

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