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BERT Management
This chapter contains examples for managing a a bit error rate test (BERT). The following topics are included:
BERT Overview
A BERT is a diagnostic test performed on a network entity to ensure operational integrity. This test is performed when a network entity malfunctions. In addition, this test is considered a service-enabling test. This test must be performed before a network entity (for example line, port, and connection) is set up for service.
Note
The Service Agent support is limited to line and port BERT. Connection BERT is not supported.
BERT MIB Tables
Use the following MIB tables for BERT management:
Platform and Card Support
The CWM Service Agent supports a BERT for the following platforms:
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Line and port BERT is supported on the following cards:
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Only port BERT is supported on the AUSM-8T1E1 card.
Note
Start a BERT
You can start a BERT by entering a SET on the following object in the cwmIfBertTable:
cwmIfBertRowStatus.<INDEXing> = start
You can include other applicable read-write objects in the same SET request.
Once the BERT is started, parameters cannot be modified for the MGX 8220 platform.
While a BERT is running, you can retrieve results and statistics from the cwmIfBertResTable using a GET on the applicable parameters.
Note
Stop a BERT
Since only a limited number of BERT sessions can coexist on a given device, it is always recommended that you stop the BERT once the desired results are retrieved.
To stop a BERT, send a SET request with the following object:
cwmIfBertRowStatus.<INDEXing> = stop
The results and statistics must be retrieved before you stop the BERT. Otherwise, they are not available once the BERT is stopped.
