Get statistics for a given interface identified by the interface index
Returns statistics of a specified interface via associated logical port. If the logical port is attached to
a logical router port, query parameter "source=realtime" is not supported.
GET https://<nsx-mgr>/api/v1/serviceinsertion/services/564dab50-63a0-8b4f-a1f8-20e4d36efc3b/service-instances/564dab50-63a0-8b4f-a1f8-20e4d36efc3c/instance-runtimes/564dab50-63a0-8b4f-a1f8-20e4d36efc3d/interfaces/1/statistics