This is a TSO NETSTAT CACHINFO option response. This message is displayed only for TSO NETSTAT options in which the TSO user ID profiles are set to the value PROFILE MSGID and the TCP/IP stack is not enabled for IPv6 processing. For a description of the output fields of this Netstat option response, see the Netstat CACHinfo/-C report in z/OS Communications Server: IP System Administrator's Commands.