Joe Welsh is a senior management IT consultant and certified IT network specialist who joined IBM in 1988. He has held the roles of developer, designer and tester for IBM z/OS Communications Server (VTAM, TCP/IP). Since 1998, he’s performed IT consulting services engagements focused on SNA, Advanced Peer-to-Peer Networking (APPN) and high-performance routing (HPR), Enterprise Extender, VTAM, TCP/IP and IP security for the Communications Server for (IBM AIX®, Linux, Microsoft Windows, and z/OS) at Fortune 500 companies around the world. This includes providing SNA, APPN and HPR, TCP/IP and IP security education and training, developing network designs and migrations, strategy and product direction, problem determination, implementation, and installation and migration assistance. Joe also provides IBM Multi-Site Workload Lifeline design and implementations services as part of the Geographically Dispersed Parallel Sysplex Active/Active solution.