A fix is available
APAR status
Closed as program error.
Error description
The parameter "FASTRELEASE" is a TCP/IP sub-parameter available in the CHCCMMXX configuration control data set. This sub-parameter and its associated functionalities will be removed as it is a deprecated functionality.
Local fix
No local fix is available
Problem summary
**************************************************************** * USERS AFFECTED: All users of IIDR CDC for z/OS. * **************************************************************** * PROBLEM DESCRIPTION: In certain scenarios a subscription may * * attempt to take over idle communication * * links that are pending termination. * **************************************************************** When FASTRELEASE is set to NO, communication links may remain idle up to 10 minutes. If a new subscription takes over the idle link during this period, it may cause mis-assigned connections and invalid negotiation sequences.
Problem conclusion
The configuration parameter FASTRELEASE is decommissioned and communication links will now attempt to terminate under 10 seconds of the subscription ending.
Temporary fix
Comments
APAR Information
APAR number
PH65510
Reported component name
INFO SRVR CDC Z
Reported component ID
5655U7600
Reported release
A21
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2025-03-04
Closed date
2026-03-18
Last modified date
2026-04-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UO07184
Modules/Macros
CHCCITTC CHCMKMON CHCMKMVS CHCPAAUT
Fix information
Fixed component name
INFO SRVR CDC Z
Fixed component ID
5655U7600
Applicable component levels
RA21 PSY UO07184
UP26/03/31 P F603
Fix is available
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Document Information
Modified date:
02 April 2026