Expanding the ability of Cisco networking tools to work with Hyper-V could help Microsoft make its case that its server virtualization software is a viable alternative to VMware. The analyst firm Gartner has praised the Hyper-V technology and said Microsoft has the advantage of providing management tools that are familiar to Windows administrations, but that it has struggled to convert large enterprise customers from VMware to Hyper-V.
via Cisco plans virtual switch for Hyper-V in Windows Server 8.