Help network infrastructure with hyper and failover

Dear All 

I would like some advise for my network infrastructure.

i need to install 2 physical host with hyper core server 2012

then i have some virtual machine on each.

what i am trying to do is to set up a failover what i would like to achieve is in case of failure if i switch my host 1 for example automatically my vm should be working on host 2.

i did use hyper- v manager but my network configuration doest help me doing that i always thought that i had to start the failover replication manually.

so from scratch what are a best practive network configuration that i should use in order to setup a redondancy plan.

Thanks to help and advise