Threshold - H3C MSR 20-20 Command Reference Manual

View
Parameter
Description
Example

threshold

Syntax
View
Parameter
Description
POS interface view
None
Use the
scramble
Use the
undo scramble
By default, payload scrambling is enabled.
You may configure payload scrambling to prevent the presence of excessive
consecutive 1s or 0s to facilitate line clock signal extraction at the receiving end.
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Only when POS interfaces on both ends are enabled with payload scrambling can
they be connected successfully.
# Enable payload scrambling on interface POS 1/0.
<Sysname> system-view
[Sysname] interface pos 1/0
[Sysname-Pos1/0]scramble
threshold { sd | sf } value
undo threshold { sd | sf }
POS interface view
value: Integer in the range 3 to 9.
Use the
threshold
fail) threshold for a POS interface.
Use the
undo threshold
If you execute the threshold command with the value argument set to X, the
value of the threshold specified can be obtained using this expression: 10e-X.
By default, SD threshold is 10e-6 (that is, X is 6), and SF threshold is 10e-3 (that is,
X is 3).
SD and SF alarms are used to indicate the current line performance. The bit error
rate threshold of SF is higher than that of SD, meaning when small amount of
errors occurs, SD alarms are generated; while when error rate is increased to a
certain degree, SF alarms are generated, indicating the line performance is
degrading seriously.
Note that SD threshold should be smaller than SF threshold.
Currently, this command is not supported.
command to enable payload scrambling on the POS interface.
command to disable payload scrambling.
command to set the SD (signal degrade) threshold or SF (signal
command to restore the default.
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