@param context - sender context, to match reply w/ request
@param sw_if_index - software index of the new vlan's parent interface
@param vrf_id - fib table /vrf associated with the route
@param context - sender context, to match reply w/ request
@param sw_if_index - software index of the new vlan's parent interface
@param vrf_id - fib table /vrf associated with the route