Important
You will not be able to create new ExpressRoute circuits in the classic deployment model starting March 1, 2017. You can move an existing ExpressRoute circuit from the classic deployment model to the Resource Manager deployment model without experiencing any connectivity down time. For more information, see Move an existing circuit. You can connect to virtual networks in the classic deployment model by setting allowClassicOperations to TRUE.
Use the following links to create and manage ExpressRoute circuits in the Resource Manager deployment model:
Create and manage ExpressRoute circuits
Configure routing (peering) for ExpressRoute circuits