test:
  description: "MTU of sub-interfaces cannot be higher than their parent"
  errors:
    expected: 
     - "sub-interface .* has MTU 9001 higher than parent MTU 9000"
    count: 1
---
interfaces:
  GigabitEthernet1/0/0:
    mtu: 9000
    sub-interfaces:
      100:
        mtu: 9001