Selecting The Type Of Bert Error To Insert On A Channel; Selecting The Type Of Alarm Signal To Be Generated In Bert Mode - Nortel Versalar 15000 Troubleshooting Manual

Selecting the Type of BERT Error to Insert on a Channel

By default, a BERT stream does not include deliberate errors. To be able to
deliberately insert errors into the bit stream or to disable their insertion, go to the
logical line test or T1 test prompt (for example,
t1-test/t1-2/1/4
bert-error-insert < option >
option
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•
•
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The following example shows how to insert a deliberate error every thousandth
position into the bit stream of slot 2, connector 1, T1 channel 4:
t1-test/t1-2/1/4#
t1-test/t1-2/1/4#

Selecting the Type of Alarm Signal to Be Generated in BERT Mode

To specify the type of alarm signal to be generated while in BERT mode, or to
disable the generation of alarm signals altogether, go to the T1 test prompt
(for example,
bert-send-alarm {ais-alarm
ais-alarm
yellow-alarm
disabled
The following example shows how to change the BERT mode alarm signal to
yellow on slot 2, connector 1, FT1 channel 5:
t1-test/2/1/5#
t1-test/2/1/5#
302768-C Rev 00
) and enter the following command:
is one of the following:
does not insert deliberate errors. This option is the default setting.
no-action
inserts a single (nonrepeating) error.
one-error
error-per-thousand
inserts a deliberate error every millionth position.
error-per-million
stops the insertion of deliberate errors.
disabled
bert-error-insert error-per-thousand
t1-test/t1-2/1/4
generates blue alarm signals (all 1s).
generates in-band yellow alarm signals.
disables the use of alarm signals.
bert-send-alarm yellow-alarm
inserts a deliberate error every thousandth position.
) and enter the following command:
| |
yellow-alarm
Monitoring and Troubleshooting
logical-line-test/ft1/2/1/5/6
disabled}
or
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