hi everyone, it has become apparent that VMM 2008 R2 has switch port leaks when performing checkpointing operations through VMM (either through the PowerShell interface, through Visual Studio Lab Manager, through the self-service portal, or through the VMM Administrator Console)
This is a known issue that we will potentially address in an upcoming QFE. For now, there is a workaround that is detailed in this blog post. Alex from our team wrote the PowerShell script that resolves this issue.
How to tell if you have switch port leaks:
How to fix the switch port leaks: