anchor.diff:           | IDLE
            | IDLE_TIMEOUT
            | IMPORT
  +         | INGRESS
            | INSERVICE
            | INSPECT
            | INSTANCE
  
positive.code:          | DS0_GROUP
           | DOMAIN_NAME
           | ECHO
           | ENCAPSULATION
           | ENCRYPTION
           | END_CLASS_MAP
  
negative.code:       | ONE
        | OPENFLOW
        | PLAT
        | PLATFORM
        | POLICY_MAP
        | POWEROFF
        | PRIORITY_FLOW_CONTROL
        | PROTOCOL
        | PSEUDOWIRE_CLASS
        | PTP
  