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Chapter 9 Managing Faults
Where Is the Fault?
9.4.18 Displaying Bit Error Rate Test
After initiating a BERT session, you can view the status of all initiated BERT sessions at once. To display
BERT status:
Step 1 In the Diagnostic Center, double-click or drag the line or port that is supported by BERT from the
Hierarchy pane to the right hand pane to display the Line and Port Configuration window.
Step 2 Click the Monitored BERTs tab to display the Monitored BERTs window. See Figure 9-10.
Table 9-7 describes the parameters for the BERT statistics.Select the BERT entry to update the statistics,
and click Refresh.
9.5 Where Is the Fault?
You need to be able to quickly troubleshoot problems on the network, identify when network capacity
is being reached, and provide information to management on the number and types of devices being used
on the network. If the network goes down, one of the first things you will need to know is what devices
are running on the network. You will want to know the types of devices you are dealing with as well as
the names, addresses, and interfaces associated with each device in order to begin troubleshooting the
problem. The more information you have about all your devices in one central place, the easier it is to
locate necessary information, resolve problems quickly, and provide detailed information to interested
parties.
9.5.1 Sources of Information
9.5.2 Identifying and Monitoring Alarms
9.5.3 Using Visual and Audible Alarm Notifications
9.5.4 Sources of EMS Raised Alarms
9.5.5 Viewing Fault Management Data for a Set of NEs
Table 9-7 Bit Error Rate Test Statistics Parameters
Name Definition
Start Date and Time Specifies the start date and time.
Operation Status Specifies the current operation status of BERT.
Failed Reason Defines the reason for the BERT failure. If the Operation
Status parameter is set to BERT Failed, more information is
available.
Bits Transmitted Specifies the total number of bits.
Bits Received In Error Receives the total number of bit errors.
Error Inject Count Specifies the total number of injected bit errors.
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