This Communications Server (CS) for z/OS TCP/IP Implementation series provides easy-to-understand, step-by-step guidance on enabling the most commonly used and important functions of CS for z/OS TCP/IP.

In this IBM Redbooks publication we begin with a discussion of Virtual IP Addressing (VIPA), a TCP/IP high-availability approach introduced by the z/OS Communications Server, both with and without using a dynamic routing protocol. Then we discuss a number of different workload balancing approaches that can be used with the z/OS Communications Server. Finally, we explain the optimized Sysplex Distributor intra-sysplex load balancing. This function is an improved multitier application support using optimized local connections together with weight values from extended WLM interfaces.

For more specific information on CS for z/OS base functions, standard applications, and security, refer to the other volumes in the series. These are:

- Communications Server for z/OS V1R9 TCP/IP Implementation Volume 1: Base Functions, Connectivity, and Routing, SG24-7532

- Communications Server for z/OS V1R9 TCP/IP Implementation Volume 2: Standard Applications6 Font, SG24-7533

- Communications Server for z/OS V1R9 TCP/IP Implementation Volume 4: Security and Policy-Based Networking, SG24-7535

Chapter 1. Introduction to CS for z/OS high availability technologies

Chapter 2. Virtual IP Addressing

Chapter 3. VIPA without dynamic routing

Chapter 4. VIPA with dynamic routing

Chapter 5. Internal application workload balancing

Chapter 6. External application workload balancing

Chapter 7. Intra-sysplex workload balancing

Chapter 8. Performance and tuning

Appendix A. Our implementation environment