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TCP/IP Jobs .........................425
TCP/IP Protocol Support Provided by IOP ..............425
Merge Host Table Performance ..................427
Running TCP/IP Only: Performance Considerations ...........427
Chapter 21. TCP/IP Problem Analysis ...............429
General TCP/IP Problems ....................430
PING Command Considerations .................437
Working with the Job Log and Message Queues ...........438
Determining Problems for SNMP ..................439
Determining Problems for Serial Line Internet Protocol (SLIP) .......439
Problem: SLIP Connection Is Failing ...............439
Problem: SLIP Job ’Hung’ with STRSSN Status ...........442
Problem: SLIP Connection Complete but Unable to PING........442
Materials Required for Reporting SLIP Problems ...........442
Determining Problems with TELNET.................443
Materials Needed when Reporting TELNET Problems .........445
Determining Problems with FTP ..................450
Materials Required for Reporting FTP Problems ...........452
Tracing FTP Server ......................453
Tracing FTP Client ......................456
Getting a Copy of an FTP Server Job Log .............456
Determining Problems for SMTP ..................457
Determining Problems for SMTP When Using OfficeVision .......462
Determining Problems for SMTP Without Using OfficeVision .......464
Tracing SMTP Distributions ...................469
Materials Required for Reporting SMTP Problems ..........475
Cleaning Up Unprocessed SMTP Distributions ............475
Determining Problems with the POP Server ..............476
Problems with Mail Delivery ...................476
Problem Determination Flows ..................477
Determining Problems with the Workstation Gateway Server........480
First Failure Data Capture (FFDC) ................480
Determining Problems for DNS Server ................482
Problem Determination Tools ..................482
Problem Determination Flows ..................483
Determining Problems for LPR...................486
LPR Command Considerations .................486
Common Error Messages ...................486
Determining Problems for LPD...................487
Materials Required for Reporting LPD Problems ...........489
Determining Problems with REXEC .................489
Materials Required for Reporting REXEC Problems ...........491
Getting a Copy of an REXEC Server Job Log .............491
Tracing the REXEC Server ....................491
Tracing TCP/IP Protocol Layer Problems ...............492
APPC Over TCP/IP Debugging Capabilities ..............492
Tracing APPC over TCP/IP Problems ...............493
Collecting a Communications Trace .................493
Planning to Set up a Trace ...................493
Starting a Communications Trace.................495
Stopping a Communications Trace ................498
Formatting and Saving the Communications Trace ..........499
Verifying the Contents of the Communications Trace..........501
Using the Product Activity Log for TCP/IP Problem Analysis ........503
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