A notification trap is sent when either 
sonetClockExternalRecovery or sonetClockTransmitSource
is changed.
          
The trap object is identified by the OID instance
of sonetClockTransmitSource described in the
OBJECTS clause.

A notification trap is sent when there is a change 
in the sonet SECTION status.  Currenly the following
are supported:
          
      NO-DEFECT = 1
      LOS       = 2
      LOF       = 4
          
The trap object is identified by the OID instance
of sonetSectionCurrentStatus described in the
OBJECTS clause.

A notification trap is sent when there is a change 
in the sonet LINE status.  Currenly the following
are supported:
          
      NO-DEFECT = 1
      AIS       = 2
      RDI       = 4
          
The trap object is identified by the OID instance
of sonetLineCurrentStatus described in the
OBJECTS clause.

A notification trap is sent when there is a change 
in the sonetPathCurrentStatus. Currenly the following
are supported:
          
   1   sonetPathNoDefect
   2   sonetPathSTSLOP
   4   sonetPathSTSAIS
   8   sonetPathSTSRDI
  16   sonetPathUnequipped
  32   sonetPathSignalLabelMismatch
          
The trap object is identified by the OID instance
of sonetPathCurrentStatus described in the
OBJECTS clause.