Configuring The Signal Fail Threshold; Configuring The Signal Degrade Threshold - Extreme Networks BlackDiamond 6800 Installation And User Manual

Configuring the Signal Fail Threshold

A Signal Failure (SF) event is generated if the bit error rate (BER) for the SONET line
exceeds the configured threshold. An SF event brings the port down.
To configure the Signal Fail threshold for the specified ATM port, use the following
command:
config sonet threshold signal fail <error_rate> ports <portlist>
The
error_rate
10 -error_rate . The default value of the
bit error rate of 10
The following command example sets the Signal Fail threshold value to 3 for port 1 of
the ATM module installed in slot 8 of the BlackDiamond switch.
config sonet threshold signal fail 3 ports 8:1
You might set the signal fail threshold to a value different than the default value
of 5 if your particular application has a very low tolerance for errors. In general,
you should not change the default setting unless you are an expert and have a
specific reason for the change.

Configuring the Signal Degrade Threshold

A Signal Degrade (SD) event is generated if the BER for the SONET line exceeds the
configured Signal Degrade threshold.
To configure the Signal Degrade threshold for the specified ATM port, use the following
command:
config sonet threshold signal degrade <error_rate> ports <portlist>
The
error_rate
rate is 10 -error_rate
an SD bit error rate of 10
The following command example sets the Signal Degrade threshold value to 8 for port 1
of the ATM module installed in slot 8 of the BlackDiamond switch.
config sonet threshold signal degrade 8 ports 8:1
Asynchronous Transfer Mode (ATM) Module Installation and User Guide
parameter is an integer in the range from 3 to 5, where the SF BER is
error_rate
-5 , or 1 per hundred thousand.
parameter is an integer in the range from 5 to 9, where the SD bit error
. The default value of the
-6
, or 1 per million.
Configuring and Monitoring SONET
parameter is 5, which equates to an SF
parameter is 6, which equates to
error_rate
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