>>-+--------+--$NITSYNC--+----------------------------------+--->
   '-symbol-'            '-,ACTION--=--+-(REFRESH ,CKPT)--+-'   
                                       +-(REFRESH ,LOCAL)-+     
                                       +-(COMPARE ,CKPT)--+     
                                       '-(COMPARE ,LOCAL)-'     

>--+------------------------+--+------------------+------------->
   '-,NIT--=----nit-addrx---'  |          .-NO--. |   
                               '-,MSG--=--+-YES-+-'   

>--+------------------+--+------------------+------------------><
   '-,ERRET--=--label-'  '-,OKRET--=--label-'   

ACTION=

Specifies the action that is to be taken:

(REFRESH,CKPT)

Indicates that the checkpointed NITCs are to be updated from the data in the private NITs.

(REFRESH,LOCAL)

Indicates that the local node definitions are to be updated from the checkpoint

(COMPARE,CKPT)

Indicates that the local and checkpointed definitions are to be compared, and messages issued if appropriate, but no action is to be taken. The comparison assumes that the CKPT fields are potentially downlevel.

(COMPARE,LOCAL)

Indicates that the local and checkpointed definitions are to be compared, and messages issued if appropriate, but no action is to be taken. The comparison assumes the LOCAL fields are potentially downlevel.

NIT

Specifies that an optional NIT address to be updated. If specified, the definitions for this node will be updated. If not specified, all nodes are to be processed.

MSG=

Indicates whether (YES) or not (NO) a message should be issued for each node definition that needs to be updated. The default is NO.

ERRET

Label to receive control when changes are needed.

OKRET

Label to receive control when changes are not needed.

• JES2 Main task.