Troubleshooting guide

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Cisco Broadband Local Integrated Services Solution Troubleshooting Guide
OL-5169-01
Chapter 9 Troubleshooting Cisco Media Gateways
Command Line Interface
Diagnostic Troubleshooting
The following sections describe different diagnostic troubleshooting scenarios for the Cisco MGX 8850.
Are “OnLine” Diagnostics Running
To determine if the “online” diagnostics are running, complete the following steps:
Step 1 Ensure that the diagnostics are enabled on the slot. This can be done by using the dspdiagcnf command.
Step 2 Make sure the second column “Online Enable” has been enabled for the slot in question. The cnfdiag
command can be used to enable/disable per slot.
Step 3 The online diagnostics task runs on the node at regular intervals ( 30 sec). In order to verify if the online
diagnostic task is running use the dspdiagstat <slot> to capture the number of attempts/failures on that
specific slot. If all the numbers do not changes then the online diag is not running.
Are “Offline” Diagnostics Running
To determine if the “offline” diagnostics are running, complete the following steps:
Step 1 Ensure that the diagnostics were enabled on the slot. This can be done using the dspdiagcnf command.
Make sure the column “Offline Enable” has been enabled for the slot in Question. Also you need to make
sure the day of the week and the start time for the tstst are configured correctly by the user. The cnfdiag
command can be used to enable/disable per slot.
Step 2 The “online” diagnostics task runs only on the standby card. When the “offline” diagnostics are triggered
the card is reset and comes up in the diagnostics mode. Once the dianotics are completed it will be reset
again returning to normal mode of operation (standby state).
Step 3 While the “offline” diagnostics are running, the command dspdiagstatus can be used to verify the status
of the diagnostics running on the node. For each card on which the offline diagnostic is running “Offline”
will be shown under the column heading “State.”
Non-Fatal Major Error Reported When “offline”/ ”online” Diagnostics are Running
If non-fatal major errors are reported while the “offline”/ “online” diagnostics are running, complete the
following steps:
Step 1 When diagnostics tests detect an error, a log is generated and the test is repeated four more times.
If the error is persistent then it is reported as a non-fatal major error to the Shelf Manager.
Step 2 The dspdiagerr command can be used to determine the cause of the error on the node.