3Com 6416SW Installation And User Manual

Diagnosing Problems with ATM ModulesIf the cause of a Phase 2 problem is not due to the 6416SW console connection, makesure that all ATM modules are operational by following these steps:1. Enter the SHOW MODULE ALL command as described in theONcore SwitchingHub/CELLplex 4000 ATM Command Reference Guide.2. Check that each module is installed, connected, and functioning properly. Normaloperation is indicated when Y appears in the Install, Connect, and Operationcolumns for all slot numbers except the row where <extension> appears. In therow for this slot, normal operation is indicated by Y in the Install column and n inthe Connect and Operation columns.3. If n appears for Install, make sure that the module is properly plugged into thebackplane connectors in the hub.If n appears for Connect, use the SET MODULE command to reconnect the modulefor ATM traffic.If n appears for Operation, the module, slot, or backplane may be faulty. Insert themodule into other slots to see if the slot or backplane is the cause.If the problem persists, enter the SHOW MODULE VERBOSE command to displaymore detailed information on the module's status.4. If the status of the module in the SHOW MODULE VERBOSE screen is hardwareKO and permanent failure, reset the module. If the problem persists and if themodule's status does not change to hardware okay and normal, replace the module.If the module's status continues as under recovery for a long time, reset themodule. If the problem persists, replace the module.7-14 ONcore ATM Switch/Control Module: Installation and User's Guide