z/OS TCP/IP stack that was available before IBMs TCP/IP stack (which was released in 1989). Originally developed by Advanced Computer Communications in 1986 as ACCESS/MVS. Name was changed to SNS/TCPaccess by Interlink Computer Services when it purchased the rights from Advanced Computer Communications in 1990.
In 1996, Interlink moved to joinly support and market the product as Cisco IOS for S/390. Product was Renamed to SOLVE:TCPaccess by Sterling Software after it acquired Interlink.
After IBM released its TCP/IP stack (ported from z/VM), TCPaccess performance was superior, and as late as 1996 still held 25% of the z/OS TCP/IP market. Today includes CA TCPaccess FTP Server and CA TCPaccess Telnet Server.
Entry last updated: 17-May-2013