Hello!
I have been testing Server 2012 hyper-v on a server with 2 gigabit nics, each one connected to gigabit cisco switch.
One nic is "straight" management with ip 10.179.10.30 and second - ip 10.179.10.31 is used for hyper-v machines.
I created external virtual switch on interface 10.179.10.31, deploy virtual machine- everything workrd fine until I checked "Allow management operating system to share this network adapter" on virtyal switch settings.
After that all vms on host become freezing in stopping state, and i cannot restart hyper-v service. But when i disconnect cable from "straignt" interface 10.179.10.30 it again works fine.
I'm very confused of such situation and i need help to understand whats going on. No vlans used in my configuration, vm gets ip address from DHCP from the same subnet 10.179.10.0/24.
I had tested this situation on different servers but always had the same results. Maybe i should configure switch ports somehow?