A number of virtual machines in a vSphere 5.5 DRS cluster are connected to the same virtual switch port group. After several of these VMs are migrated to another host, an administrator notices that they have lost network connectivity. The Events tab in vCenter Server shows this error message:

Failed to initialize ethernet0. The vmkernel log file on the host running the affected VMs contains this message:

Can't connect device:'port group name': Out of resources. Which caused this issue?

Question

A number of virtual machines in a vSphere 5.5 DRS cluster are connected to the same virtual switch port group. After several of these VMs are migrated to another host, an administrator notices that they have lost network connectivity. The Events tab in vCenter Server shows this error message:

Failed to initialize ethernet0. The vmkernel log file on the host running the affected VMs contains this message:

Can't connect device:'port group name': Out of resources. Which caused this issue?

Accepted Answer

D. The virtual switch port allocation was changed from the default setting.

Answer

A. Network I/O Control was enabled.

Answer

B. The DRS cluster containing the VMs was set to Fully Automated with the Migration Threshold set

Answer

C. There were insufficient uplinks configured on the virtual switches.

A number of virtual machines in a vSphere 5.5 DRS cluster are connected to the same virtual switch port group. After several of these VMs are migrated to another host, an administrator notices that…

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