Is this question about the HyperV Host server or a Virtual Machine on the HyperV host Server?
Are you running Server 2012 or 2012 R2?
If for the HyperV Host Server - How many NICs do you have in you HyperV host server? you say that you have a DOT1Q connection from you CISCO Switch so you imply you want to create a trunk? If you have multiple NICS in your server I would consider creating a NIC team. you can use the first team interface and assign an IP address and a VLAN number then you create a 2nd team interface and assign a separate IP Address and VLAN number for that.
There is some information on here about creating NIC teams:
https://technet.microsoft.com/en-us/library/hh831648(v=ws.11).aspx