BRMAXKEEPTIME

The BRMAXKEEPTIME parameter specifies the maximum time (in seconds) that bridge facilities (virtual terminals used by the 3270 bridge) are kept if they are not used.

BRMAXKEEPTIME={86400|number}
The client application can specify this timeout value when it sends a request to run a transaction using the Link3270 bridge. 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.
number
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).