VeEX MPA, Руководство пользователя

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SONET Tab
386
Inserting Multiple Errors
Various errors can be transmitted by the system. One reason for transmitting errors is to
determine if the receiving equipment can detect an error in the incoming signal.
Inserting multiple errors at a specified error rate allows you to monitor the network and
receiving equipment for any undesirable behavior as the error rate is increased.
To insert multiple errors:
1. Select a protocol processor mode.
2. Select Transmit and choose Error Alarm .
3. Select Error to Insert . The Select Error to Insert window appears.
4. Select an error.
5. Select Error Insert Rate . The Select Error Insert Rate window appears.
6. Select an Error Rate. The system starts transmitting errors at a constant error
rate.
7. After selecting an Error Type, you can also press the Error Insert button from
the common function buttons to inject single errors.
Selecting None will stop the error transmission.
Making Pointer Adjustments
The beginning of a SONET payload is identified by a Pointer . It consists of the H1 and
H2 Pointer bytes. You can stress a network by manually adjusting the Pointer using the
Increment and Decrement Pointer buttons. By performing this task, you can stress your
SONET equipment to verify if it can tolerate Pointer adjustments, and how your
equipment will react and report these adjustments.
There are several Pointer parameters that must be configured before making a positive
or negative Pointer adjustment.
To make Pointer adjustments:
MPA_e_manual_D07-00-129P_RevA00