TCP/IP failure

Problems with connections to CICS® Transaction Server.

If a TCP/IP subsystem fails, the CICS Transaction Gateway tries to reconnect to TCP/IP when it becomes available again. However, if multiple TCP/IP stacks are in use on the z/OS® system the CICS Transaction Gateway cannot detect that a TCP/IP subsystem has failed unless all the TCP/IP stacks to which it is bound fail. Consider using the TCP/IP environment variable _BPXK_SETIBMOPT_TRANSPORT to control which TCP/IP stacks the CICS Transaction Gateway can bind to; for more details see the IBM® z/OS Communications Server: IP Configuration Guide.