Defining Link3270 SIT parameters

The following system initialization parameters affect the operation of the Link3270 bridge:

AIBRIDGE={AUTO|YES}
Code this parameter to specify whether the autoinstall URM is called when bridge facilities are created and deleted.
AUTO
The autoinstall URM is not called.
YES
The URM is called for all new bridge facilities and can change the termid and netname, or can reject the request
BRMAXKEEPTIME={86400|timeout }
Bridge facilities are deleted after they have been unused for a given length of time. The timeout value can be specified by the client when it sends in a request to create a bridge facility in session mode. This parameter specifies the maximum timeout value that a client can specify (in seconds). If the client specifies a larger value than the BRMAXKEEPTIME value in the AOR, then CICS® will change this parameter in the link parameter list ( but does not return the reduced value to the client).

Use this parameter to ensure that CICS does not run short of bridge facilities caused by clients reserving bridge facilities for too long a period.

86400
The default maximum timeout value (24 hours) that a client can specify to retain an unused bridge facility before it is deleted.
timeout
The maximum timeout value that a client can specify (in seconds), before an unused bridge facility is deleted. The value specified must be in the range 0 to 86400. A value of 0 means that bridge facilities are never kept at the end of a transaction. Therefore CICS will not be able to run pseudoconversational transactions. This may be useful if the region is only used for inquiry transactions. The default value is 24 hours (86400 seconds).

You can also specify the SPCTR and STNTR parameters to request standard and special tracing for the bridge (BR) and partner (PT) domains:

BR domain tracing
PT domain tracing

See the CICS System Definition Guide for further information about the SIT.

Related concepts
The Link3270 bridge mechanism
The bridge facility
Related tasks
Using Link3270 session mode
Managing Link3270 bridge resources
Using Link3270 bridge load balancing
Writing the Link3270 client
Related reference
Link3270 message formats
Link3270 diagnostics
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