CNCT (128-byte bit string)

Queue-manager connection tag.

This is a tag that the queue manager associates with the resources that are affected by the application during this connection. Each application or application instance should use a different value for the tag, so that the queue manager can correctly serialize access to the affected resources. See the descriptions of the CN*CT* options for further details. The tag ceases to be valid when the application terminates or issues the MQDISC call.

The following special value should be used if no tag is required:

CTNONE

No connection tag specified.

The value is binary zero for the length of the field.

This is an input field. The length of this field is given by LNCTAG. The initial value of this field is CTNONE. This field is ignored if CNVER is less than CNVER3.

Use the field ConnTag when connecting to a z/OS queue manager.