Front cover -- Contents -- Notices -- Trademarks -- Preface -- The team that wrote this redbook -- Special notice -- Comments welcome -- Part 1 z/OS and Cisco interoperation -- Chapter 1. Introduction -- 1.1 Physical connectivity -- 1.1.1 Channel attachment -- 1.1.2 Shared networks -- 1.2 Routing in your network -- 1.2.1 Static routing -- 1.2.2 Dynamic routing -- 1.3 Quality of Service -- 1.3.1 Integrated Services -- 1.3.2 Differentiated Services -- 1.4 High availability and load distribution -- 1.4.1 DNS mapping -- 1.4.2 Connection dispatching -- 1.4.3 Virtual IP Addressing (VIPA) -- 1.4.4 Round-robin DNS -- 1.4.5 Connection Optimization (DNS/WLM) -- 1.4.6 Network Dispatcher -- 1.4.7 Sysplex Distributor -- 1.4.8 MultiNode Load Balancing (MNLB) -- 1.4.9 Sysplex Distributor/MNLB joint solution -- Chapter 2. Connecting z/OS systems and Cisco routers -- 2.1 Channel-attached Cisco routers -- 2.1.1 CIP and xCPA -- 2.1.2 Channel protocols -- 2.2 LAN-attached Cisco routers -- 2.2.1 OSA-2 adapters -- 2.2.2 OSA-Express adapters -- 2.3 Summary -- Chapter 3. Routing overview -- 3.1 Static routing -- 3.2 Dynamic routing -- 3.3 RIP -- 3.3.1 RIP Version 1 -- 3.3.2 RIP Version 2 -- 3.4 OSPF -- 3.4.1 OSPF terminology -- 3.4.2 Neighbor communication -- 3.4.3 OSPF virtual links and transit areas -- 3.4.4 OSPF route redistribution -- 3.4.5 OSPF stub areas -- 3.4.6 OSPF route summarization -- 3.5 EIGRP -- 3.5.1 Features of EIGRP -- 3.5.2 Terminology -- 3.5.3 Neighbor discovery and recovery -- 3.5.4 The DUAL algorithm -- Chapter 4. Quality of Service -- 4.1 Overview of QoS protocols -- 4.1.1 Service models -- 4.2 Steps in QoS deployment -- 4.2.1 Traffic audit -- 4.2.2 Traffic classification -- 4.2.3 Defining policies for the classes -- 4.2.4 Planning for RSVP configuration -- 4.3 QoS on the z/OS Communications Server -- 4.3.1 PAGENT policies.

4.3.2 Configuring QoS in z/OS Communication Server -- 4.4 Ensuring QoS across the Cisco network -- 4.4.1 Cisco IOS QoS support features -- 4.4.2 Configuring QoS in the network -- 4.4.3 SNA QoS -- 4.5 Managing Quality of Service -- 4.5.1 What management tools are available? -- 4.6 QoS summary -- 4.6.1 QoS reduces costs -- Chapter 5. Load distribution solutions -- 5.1 Connection dispatching -- 5.1.1 What this chapter includes -- 5.1.2 Distribution manager/forwarding agent in the sysplex -- 5.1.3 Distribution manager/forwarding agent outside the sysplex -- 5.1.4 Distribution within sysplex, forwarding outside the sysplex -- 5.2 IBM Sysplex Distributor -- 5.2.1 Sysplex Distributor elements -- 5.2.2 Sysplex Distributor start tasks and takeover/takeback -- 5.2.3 Sysplex Distributor load-balancing rules -- 5.2.4 Handling connection requests -- 5.2.5 Data path after connection establishment -- 5.2.6 Takeover/takeback -- 5.2.7 Reaching the goals of availability and load balancing -- 5.3 Cisco LocalDirector -- 5.3.1 Overview -- 5.3.2 Connection and datagram flow -- 5.4 Cisco MultiNode Load Balancing (MNLB) -- 5.4.1 Overview of the MultiNode Load Balancing (MNLB) functions -- 5.4.2 Connection establishment and subsequent data flow -- 5.4.3 Client/server connection restart -- 5.4.4 Reaching the goals of availability and load balancing -- 5.5 IBM Sysplex Distributor and Cisco MNLB -- 5.5.1 What does this mean? -- 5.5.2 Overview of IBM Sysplex Distributor with Service Manager -- 5.5.3 Cisco Forwarding Agent, overview and functions -- 5.5.4 Cisco Workload Agent -- 5.5.5 Connection establishment process -- 5.5.6 Failure of application server, TCP/IP stack, system/LPAR -- 5.5.7 Failure of the Sysplex Distributor -- 5.5.8 Routing packets -- 5.5.9 Additional tasks of the MNLB components -- Part 2 Implementation examples.

Chapter 6. Configuring CLAW, MPC+ and OSA-Express -- 6.1 Cisco CLAW support -- 6.1.1 IOCP definitions for CLAW devices -- 6.1.2 Router definitions -- 6.1.3 Host TCP/IP profile statements -- 6.1.4 Router show commands -- 6.1.5 z/OS CLAW commands -- 6.2 Cisco CMPC+ support -- 6.2.1 IOCP definitions for CMPC+ devices -- 6.2.2 Cisco MPC+ router definitions -- 6.2.3 MPC+ host definitions -- 6.2.4 z/OS MPC+ commands -- 6.2.5 Router show commands -- 6.3 Configuring for the OSA-Express adapter -- 6.3.1 IOCP for OSA-Express devices -- 6.3.2 Catalyst 6500 configuration -- 6.3.3 7507 configuration -- 6.3.4 7206 configuration -- 6.3.5 VTAM and TCP/IP definition -- 6.3.6 z/OS OSA-Express commands -- Chapter 7. Routing with OSPF and EIGRP -- 7.1 Topology overview -- 7.1.1 Routing topology -- 7.2 OSPF configuration in the sysplex -- 7.2.1 OMPROUTE configuration -- 7.2.2 Verify routing from the host -- 7.3 ASBR configuration and redistribution -- 7.3.1 Redistribution -- 7.3.2 Verify routing from the router -- 7.4 Summary -- Chapter 8. Implementing QoS in a z/OS and Cisco environment -- 8.1 Implementation steps -- 8.1.1 Perform traffic audit -- 8.1.2 Traffic classification -- 8.1.3 QoS policy definition -- 8.2 Configuration examples -- 8.2.1 z/OS configuration -- 8.2.2 Cisco network configuration -- 8.3 QoS test results -- 8.3.1 Summary -- Chapter 9. Load distribution with MNLB and Sysplex Distributor -- 9.1 Connection distribution for a sysplex -- 9.2 Advantages of the solution -- 9.3 IP addresses used during our tests -- 9.4 Data flow: Service Manager and Forwarding Agent -- 9.4.1 Wildcard affinity and processing -- 9.4.2 Service Manager processes TCP connection request -- 9.4.3 Continuation of the TCP connection establishment process -- 9.4.4 Fixed affinity processing -- 9.4.5 Prerequisites for the CASA protocol exchange.

9.4.6 Message flow of wildcard and fixed affinities, SYN, ACK, data -- 9.4.7 Message flow for connection data with no fixed affinity -- 9.4.8 Message flow for closing a TCP connection -- 9.5 Service Manager implementation -- 9.5.1 Service Manager new TCPIP.PROFILE definitions -- 9.6 TCP/IP stack of the target systems -- 9.6.1 TCPIP.PROFILE definitions -- 9.6.2 Basic TCPIP.PROFILE definitions -- 9.7 Forwarding Agent definitions -- 9.7.1 CASA definitions for Cisco 7507 -- 9.7.2 CASA definitions for Cisco router 7206VXR -- 9.8 Operations: control and displays -- 9.8.1 CASA information in the Sysplex Distributor -- 9.8.2 CASA information in the Forwarding Agent -- 9.8.3 Integrated CASA information -- 9.9 Sysplex Distributor backup -- 9.9.1 TCPIP.PROFILE definitions -- 9.9.2 Sysplex Distributor backup procedures -- 9.10 Generic Routing Encapsulation (GRE) protocol -- 9.10.1 The need for GRE -- 9.10.2 Search for a shared OSA-Express solution -- 9.10.3 Generic Routing Encapsulation (GRE) overview -- 9.10.4 Definitions in the Cisco routers 7507 and 7206 -- Related publications -- IBM Redbooks -- Other resources -- Referenced Web sites -- How to get IBM Redbooks -- IBM Redbooks collections -- Index -- Back cover.