TCPStackType (MQLONG)

This specifies whether the channel initiator can use only the TCP/IP address space specified in TCPName, or can optionally bind to any selected TCP/IP address

The value is one of the following:

MQTCPSTACK_SINGLE
The channel initiator can use only the TCP/IP address spaces named in TCPName. This is the default value.
MQTCPSTACK_MULTIPLE
The channel initiator can use any TCP/IP address space available to it. It defaults to the one specified in TCPName if no other is specified for a channel or listener.

This attribute is supported on z/OS(R) only.

To determine the value of this attribute, use the MQIA_TCP_STACK_TYPE selector with the MQINQ call.