Diagnosing Problems in the Hardware Configuration
If you suspect that a Phase 3 problem is due to a problem in your hardware
configuration (for example, using a LAN Emulation server, ONsemble ATM 25 Mbps
Concentrator, 25Mbps client, and so on), check the following:
If the attached device is an ONsemble ATM 25 Mbps Concentrator, enter the
SHOW PORT command to see if the port's status is OKAY. If the status is not OKAY,
follow the steps in “Diagnosing Problems with ATM Ports” on page 7-15.
If a trap or error message is displayed on the client when you start the ONcore hub,
enter the SHOW PORT command to make sure that the ATM media port's status is
OKAY. If the status is not OKAY, restart the client.
If the port's status does not change to OKAY, run a trace by entering the SET
TRACE and UPLOAD INBAND commands. Then contact your 3Com service
representative.
Use the MIB browser or the ATM Campus Manager for AIX Version 1 to make sure
that the client addresses are configured in the ONcore hub's ATM address table.
If the ATM media port's status does not change to OKAY, contact your 3Com service
representative.
If the attached device is a LAN Emulation server (LES), make sure that it is
installed and running properly, and that:
– The status of the port that connects the LES to the ONcore hub is OKAY.
– The LES is configured with the ATM network prefix used by the ONcore hub.
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