Inside APPN and HPR is the most complete, up-to-date sourcebook for leveraging the power of APPN in today's high-speed, networked, client/server environments. This book presents up-to-date, detailed coverage of IBM's latest APPN specification, including topology enhancements and other essential new capabilities. It also includes in-depth, systematic coverage of High Performance Routing (HPR), IBM's third-generation SNA protocol. Discover how HPR combines the best attributes of connection-oriented SNA and APPN with those of connectionless IP, adding advanced congestion control to deliver state-of-the-art performance.