I've come across some great content about Hyper-V networking, and I'd like to share some links with you. If you're interested in Hyper-V networking features, you might enjoy some of the highlighted community content in this article.
Dutch Hyper-V community member Marc van Eijk has written an excellent article on Hyper-V networking and System Center Virtual Machine Manager 2012 SP1 in his blog post Hyper-V Network Virtualization in Windows Server 2012. Marc discusses network virtualization, NVGRE, logical networks, network adapters on Hyper-V hosts, and many other salient topics.
Microsoft writer Brian Wren has produced the System Center 2012 Integration Guide - Virtual Machine Manager. This TechNet Wiki topic provides information about System Center's role in the cloud, Windows PowerShell cmdlets and console add-ons, integration points, and more.
Tip: Download Microsoft System Center Private Cloud Evaluation Software at http://technet.microsoft.com/en-US/evalcenter/hh505660.aspx
This Windows Server blog post by Jeffrey Snover provides a great introduction to Hyper-V Network Virtualization: Introducing Windows Server “8” Hyper-V Network Virtualization: Enabling Rapid Migration and Workload Isolation in the Cloud.
The following additional TechNet Wiki articles help you configure your Hyper V Virtual Switches.
I hope you find these articles and guides useful!