@Override
 public void setParentInterfaces(
     OnmsSnmpInterface sourceInterface, OnmsSnmpInterface targetInterface) {
   if (targetInterface != null && targetInterface.getIfOperStatus() != null) {
     if (sourceInterface != null) {
       if (sourceInterface.getIfOperStatus() == 1 && targetInterface.getIfOperStatus() == 1) {
         getLinkStateMachine().setState(getLinkStateMachine().getUpState());
       } else {
         getLinkStateMachine().setState(getLinkStateMachine().getDownState());
       }
     }
   }
 }