Many bloggers already discovered the video on YouTube showing that Hyper-V Quick Migration breaks network connections. In other words quick migration in the beta of Microsoft's Hyper-V hypervisor leads to network connection failures in virtual machines. VMware created their own page on blib.tv showing a comparison between VMotion and Quick migration and VMware VMotion does not break network connections. VMotion in VMware Virtual Infrastructure leaves network connections intact as virtual machines travel from one physical server to another. Sometimes a video says more than a hundred words ;-)