Book description
For more than 50 years, IBM® mainframes have supported an extraordinary portion of the world’s computing work, providing centralized corporate databases and mission-critical enterprise-wide applications. IBM z™ Systems, the latest generation of the IBM distinguished family of mainframe systems, has come a long way from its IBM System/360 heritage. Likewise, its IBM z/OS® operating system is far superior to its predecessors in providing, among many other capabilities, world-class and state-of-the-art support for the TCP/IP internet protocol suite.
TCP/IP is a large and evolving collection of communication protocols that is managed by the Internet Engineering Task Force (IETF), an open, volunteer organization. Because of its openness, the TCP/IP protocol suite has become the foundation for the set of technologies that form the basis of the internet. The convergence of IBM mainframe capabilities with internet technology, connectivity, and standards (particularly TCP/IP) is dramatically changing the face of information technology and driving requirements for even more secure, scalable, and highly available mainframe TCP/IP implementations.
The IBM z/OS Communications Server TCP/IP Implementation series provides understandable, step-by-step guidance for enabling the most commonly used and important functions of z/OS Communications Server TCP/IP.
This IBM Redbooks® publication is for people who install and support z/OS Communications Server. It introduces z/OS Communications Server TCP/IP, describes the system resolver, and shows the implementation of global and local settings for single and multi-stack environments. It presents implementation scenarios for TCP/IP base functions, connectivity, routing, and subplexing.
Table of contents
- Front cover
- Notices
- Preface
-
Chapter 1. Introduction to IBM Communications Server for z/OS IP
- 1.1 Overview and basic concepts
- 1.2 Featured functions
-
1.3 Communications Server for z/OS IP implementation
- 1.3.1 Functional overview
- 1.3.2 Operating environment
- 1.3.3 Reusable address space ID
- 1.3.4 64-bit enablement of the TCP/IP stack
- 1.3.5 Protocols and devices
- 1.3.6 Supported routing applications
- 1.3.7 Application programming interfaces
- 1.3.8 z/OS Communications Server applications
- 1.3.9 UNIX System Services
- 1.4 Additional information
- Chapter 2. The resolver
-
Chapter 3. Base functions
- 3.1 The base functions
- 3.2 Common design scenarios for base functions
- 3.3 z/OS UNIX System Services setup for TCP/IP
- 3.4 Configuring z/OS TCP/IP
- 3.5 Implementing the TCP/IP stack
- 3.6 Activating the TCP/IP stack
- 3.7 Reconfiguring the system with z/OS commands
- 3.8 Job log versus syslog as a diagnosis tool
- 3.9 Message types: Where to find them
- 3.10 Additional information
-
Chapter 4. Connectivity
- 4.1 What is connectivity
- 4.2 Preferred interfaces
- 4.3 Connectivity for the z/OS environment
- 4.4 OSA-Express QDIO connectivity
-
4.5 OSA-Express QDIO connectivity with connection isolation
- 4.5.1 Description of connection isolation
- 4.5.2 Dependencies for connection isolation
- 4.5.3 Considerations for connection isolation
- 4.5.4 Configuring OSA-Express with connection isolation
- 4.5.5 Verifying connection isolation on OSA2080X
- 4.5.6 Conclusions and suggestions: Preferred practices for isolating traffic
- 4.6 HiperSockets connectivity
- 4.7 Dynamic XCF connectivity
- 4.8 Controlling and activating devices
- 4.9 Problem determination
- 4.10 Additional information
- Chapter 5. Routing
- Chapter 6. Virtual LAN and virtual MAC support
- Chapter 7. Shared Memory Communications
- Chapter 8. Sysplex subplexing
-
Chapter 9. Diagnosis
- 9.1 Debugging a problem in a z/OS TCP/IP environment
- 9.2 Logs to diagnose Communications Server for z/OS IP problems
- 9.3 Sysplex Autonomics function
- 9.4 Useful commands to diagnose Communications Server for z/OS IP problems
-
9.5 Gathering traces in Communications Server for z/OS IP
- 9.5.1 Taking a component trace
- 9.5.2 Event trace for TCP/IP stacks (SYSTCPIP)
- 9.5.3 Packet trace (SYSTCPDA)
- 9.5.4 OMPROUTE trace (SYSTCPRT)
- 9.5.5 Resolver trace (SYSTCPRE)
- 9.5.6 IKE daemon trace (SYSTCPIK)
- 9.5.7 Intrusion Detection Services trace (SYSTCPIS)
- 9.5.8 OSAENTA trace (SYSTCPOT)
- 9.5.9 Queued Direct I/O Diagnostic Synchronization
- 9.5.10 Network Security Services server trace (SYSTCPNS)
- 9.5.11 Obtaining component trace data with a dump
- 9.5.12 Analyzing a trace
- 9.5.13 Configuration profile trace
-
9.6 OSA-Express Network Traffic Analyzer
- 9.6.1 Determining the microcode level for OSA-Express3
- 9.6.2 Defining TRLE definitions
- 9.6.3 Checking TCPIP definitions
- 9.6.4 Customizing OSA-Express Network Traffic Analyzer
- 9.6.5 Defining a resource profile in RACF
- 9.6.6 Allocating a VSAM linear data set
- 9.6.7 Starting the OSA-Express Network Traffic Analyzer trace
- 9.6.8 Operator command to query and display OSA information
- 9.6.9 OSM and OSX information
- 9.7 Additional tools for diagnosing Communications Server for z/OS IP problems
-
9.8 MVS console support for selected TCP/IP commands
- 9.8.1 Concept
- 9.8.2 Commands and environments that are supported by EZACMD
- 9.8.3 When to use EZACMD
- 9.8.4 How to use the EZACMD command
- 9.8.5 Configuring z/OS for using the EZACMD
- 9.8.6 Using the EZACMD command in the z/OS console
- 9.8.7 Preparing the EZACMD command in z/OS TSO and z/OS NetView
- 9.8.8 Using the EZACMD command from z/OS TSO
- 9.8.9 Integrating EZACMD into REXX programs in TSO and NetView
- 9.8.10 Protecting the EZACMD command
- 9.8.11 Diagnosing the EZACMD command
- 9.9 Additional information
-
Chapter 10. IBM z/OS in an ensemble
- 10.1 Basic concepts
- 10.2 zEnterprise Unified Resource Manager
- 10.3 Connectivity
- 10.4 Enabling z/OS as a member of the ensemble
-
10.5 Adding z/OS Communications Server into the ensemble
- 10.5.1 Configuring the OSA CHPID to OSX in HCD
- 10.5.2 Creating a VLAN definition on Unified Resource Manager in the HMC
- 10.5.3 Adding hosts to the virtual network
- 10.5.4 Configuring OSX interfaces in the TCP/IP stack
- 10.5.5 Displaying information about the OSX interfaces
- 10.5.6 HiperSockets connectivity to the intraensemble data network
- 10.5.7 Enabling HiperSockets access to the intraensemble data network
- 10.5.8 Verifying the HiperSockets IQDX implementation
- 10.6 Additional information
- Appendix A. IPv6 support
- Appendix B. Additional parameters and functions
- Appendix C. Examples that are used in our environment
- Appendix D. Our implementation environment
- Related publications
- Back cover
Product information
- Title: IBM z/OS V2R2 Communications Server TCP/IP Implementation Volume 1: Base Functions, Connectivity, and Routing
- Author(s):
- Release date: November 2016
- Publisher(s): IBM Redbooks
- ISBN: 9780738442099
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