IBM SY44-5902-05 manual Procedure, Test descriptions

–Remote communications - SDLC, ISDN, frame relay, and so on

–Local area networks - Ethernet, token-ring, wireless, LocalTalk, and so on

–Cryptographic resources

–Facsimile features

v Diagnose and verify communications hardware problems and cable problems.

vSend test data to the remote equipment to verify correct connection.

vAnalyze problems

Note: Use the VFYCMN command to assist in isolating hardware problems that the system does not detect.

vRun concurrent Link Problem Determination Aid-2 (LPDA-2) tests (see “Concurrent LPDA-2 tests” on page 317).

vRun wireless diagnostic tests.

vMonitor telephone lines and modems concurrently.

vMonitor modems interface signals.

vVerify a communications link.

For information on running a trace on a communications interface and other tests that are available, see “Communications tests” on page 316.

Procedure

To verify communications or devices on any iSeries perform the following:

1.Check the operating system.

2.Use one of the following methods to verify communications:

vType the VFYCMN (Verify Communications) command and press the Enter key.

vOn the iSeries Main Menu, select the Problem handling option. On the Problem Handling display, select the Network problem handling option. Then, select the Verify communications option.

3.Select the type of connection you want to test (see “Test descriptions”).

Using online help information, follow the system menus; for example, select the number of times you want the test to run. The system responds with either the

Verification Successful message or the Errors Occurred message.

Note: Before running the verification test (which loads a diagnostic program into the card), ensure that the customer is not using the resource that you want to test.

For more details on verifying communications see the iSeries Licensed Internal Code Diagnostic Aids - Volume 1 information.

Test descriptions

Diagnostic tests are supplied for the following:

vRemote modem

vLocal modem

vModem and coupler

vCommunications cable

vCommunications I/O adapter

vCommunications I/O processor

vExternal ring

vI/O processor memory

Appendix A. OS/400 309