anchor.diff:        | SERVER_TYPE
         | SERVICE
         | SERVICE_POLICY
  -      | SET
         | SETUP
         | SFLOW
         | SHELL
  
positive.code:       | ARCHIVE
        | ATM
        | BASH
        | CLI
        | CONTROL_PLANE
        | CONTROLLER
  
negative.code:       | CDP
        | CFS
        | CIPC
        | CLOCK
        | CLUSTER
        | CNS
  