Can ethernet service instance and sub-interface coexist on the same physical interface on the ASR1000.
Something like this:
interface GigabitEthernet 1/0/0
service instance 10 ethernet
encapsulation dot1q 10
bridge-domain 10
interface GigabitEthernet 1/0/0.20
ecapsulation dot1q 20
ip address x.x.x.x y.y.y.y
Thanks,
Nedim