TCP/IP for z/OS: Diagnostics and Debugging

This course is designed to give you the skill required to diagnose and debug TCP/IP problems when operating on z/OS. This skill consists in developing knowledge of commands and tools together with a methodology in tackling TCP/IP problems.

The lab activity and paper projects provide an opportunity to debug real problems.

This intermediate course is for anyone who works on TCP/IP networks and provides support in the resolution of communication problems on z/OS.

You should have:

• Completed TCP/IP for z/OS Implementation Workshop (CB695)
• Knowledge of z/OS.

• Learn what commands are useful in a z/OS environment to control TCP/IP resources, the TELNET application, and debug TCP/IP simple network problems
• Learn which trace types (packet, TELNET, FTP, and so forth) are available in a z/OS environment and know:
  • What kind of information can be found in a trace
  • When to activate a trace
  • How to activate a trace
  • How to interpret a trace (for the packet trace there is a dedicated topic)

• Use the proper diagnostic technique to approach TCP/IP problems
• Describe the Syslog function in the UNIX environment and know how to configure the /etc/syslog.conf file
• Understand how to handle and modify the translate tables used by many TCP/IP applications that connect to remote systems which use ASCII character coding
• Activate and interpret several trace types, and debug some real problems which involve the use of various application protocols.

Day 1

• Welcome
• Unit 1: Introduction
• Unit 2: TCP/IP commands and utilities
• Exercise 1: TCP/IP commands and lab discovery
• Unit 3: TCP/IP traces
• Unit 4: Using IPCS with TCP/IP traces
• Exercise 2: Packet trace
• Exercise 3: OSA diagnosis lab

Day 2

• Unit 5: IP data flows
• Unit 6: Telnet
• Exercise 4: Telnet problems
• Unit 7: SyslogD and application traces
• Unit 8: FTP
• Exercise 5: FTP client
• Exercise 6: FTP server

Day 3

• Unit 8: FTP (continued)
• Unit 9: Debugging techniques
• Exercise 7: Problem Diagnosis (problem 1)
• Exercise 7: Problem Diagnosis (problem 2)
• Exercise 7: Problem Diagnosis (problem 3)
• Exercise 7: Problem Diagnosis (problem 4)
• Exercise 7: Problem Diagnosis (problem 5)

Day 4

• Unit 10: OMPRoute
• Exercise 8: OMPRoute
• Exercise 9: Storage usage
• Unit 11: Dump verification
• Exercise 10: Dump verification