TCP/IP Debugging for z/OS

Prerequisites:

Course Description:

This course gives you the skill required to diagnose and debug TCP/IP problems when operating on z/OS. This skill consists of commands and tools, knowledge and a method to approach TCP/IP problems. The lab activity and the paper projects will provide some real problems to debug.

Suitable for any personnel that has to operate on TCP/IP networks and provide support to solve communication problems on OS/390.

The main objectives for the students that attend this course are:

Learn what commands are useful in OS/390 environment to control the 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 OS/390 environment and understand:

• What kind of information can be found in a Trace
• When and how to activate a trace
• How to interpret a trace
• 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
• Use TCP/IP applications during a connection with hosts that use ASCII character coding.
• Perform some practical activity that consist in activating and interpreting some trace types,and debug some real problems concerning various application protocols.

This course includes the following modules:

Use tools and methods for failure capture and discovery

• Methodology for dealing with TCP/IP for OS/390 failures
• Operator commands
• Common failures and faults case-study:
• Security, Translation tables, Socket interface, Routing, Telnet, Name resolution and more...
• Logical connections between server and clients
• Addresspaces for TCP/IP in OS/390
• Network interfaces
• Internal communication between TCP/IP tasks
• Start and end traces, format trace reports and analyse them with OS/390 system tools