DCAS tried to establish affinity to a TCP/IP stack name specified in the DCAS configuration. The name used is the name specified with the TCP/IP keyword in the DCAS configuration file. If DEFAULT was specified, then the TCP/IP jobname from the TCPIP.DATA file is used.

tcpipname is the name used to establish affinity to.

errno is the decimal z/OS® UNIX System Services return code returned by the setibmopt(). These return codes are listed and described in the return codes (errnos) information in z/OS UNIX System Services Messages and Codes.

errnojr is the hexadecimal z/OS UNIX System Services reason code returned by the setibmopt(). The format of the 4-byte reason code is explained in the introduction to the reason codes (errnojrs) information of the z/OS UNIX System Services Messages and Codes, where the reason codes are listed.