IST2243I

Explanation
 This unsolicited message is issued when VTAM® initiates the inactivation
of the CP-CP session with an adjacent control point (CP) because the
number of queued  requests plus the number of queued replies to the
adjacent CP exceeds 200% of  the MAXLOCAT value after a minimum time
interval elapsed.    
 Before VTAM issues
this message, it issues message IST1601I to
indicate that it suspended routing to the adjacent node because of
severe network congestion and that VTAM ceased
sending APPN search requests to the adjacent CP.  Although VTAM  suspends sending APPN search
requests to an adjacent CP, it continues to queue APPN search replies
to the adjacent CP.   
 For information about the minimum and
maximum congestion thresholds or the minimum  time interval, see the MAXLOCAT start option information in z/OS Communications Server: SNA Resource Definition
Reference.
 In the message text: cp_name
The name of the adjacent CP. 

System action
 VTAM deactivates
the CP-CP session to the adjacent CP                 with sense code
80030004 and tries the CP-CP session again.

Operator response
 Notify the system programmer about the adjacent
CP and monitor the adjacent CP to verify that the CP-CP session is
recovered.  The  following sequence of  messages related to the adjacent
CP indicates that the CP-CP session has  recovered:   IST2243I CP-CP SESSION WITH cp_name ENDING DUE TO MAXLOCAT
.....
IST1097I CP-CP SESSION WITH cp_name TERMINATED 
IST1280I SESSION TYPE = CONWINNER - SENSE = 80030004        
IST314I END                                                 
IST1097I CP-CP SESSION WITH cp_name TERMINATED 
IST1280I SESSION TYPE = CONLOSER - SENSE = 80030004         
IST314I END                                                 
...
IST1096I CP-CP SESSIONS WITH cp_name ACTIVATED 

System programmer response
 Determine whether there are network
connectivity problems between this node and the adjacent CP and, if
possible, correct the problems. If connectivity is not a  problem,
determine whether the maximum threshold value is appropriate for the
 network. If the value needs to be adjusted, change the value of the
MAXLOCAT  start option.

User response
 Not applicable.

Problem determination
 None.

Source
 z/OS® Communications
Server SNA

Module
 You can display the module that issues a SNA message
in the message by setting the MSGMOD start option to YES.  See Adding the originating module to the message text for more information about the MSGMOD
start option.

Routing code
 2

Descriptor code
 4

Automation
 Not applicable.

Example
  IST2243I CP-CP SESSION WITH NETA.SSCP2A ENDING DUE TO MAXLOCAT