HP 6600 Command Reference Manual page 213

Default command level
2: System level
Parameters
sd: Sets the SD alarm threshold.
sf: Sets the SF alarm threshold.
value: SD or SF alarm threshold value, in the format of 10e-value. The value argument is in the range of
3 to 9.
Usage guidelines
SD and SF alarms are used to indicate current line performance. They are generated when the receiving
end detects a certain amount of B2 errors. When a few errors occur, SD alarms are generated. When the
error rate increases to a certain level, SF alarms are generated to indicate that the line performance is
seriously degraded. You must set the SF alarm threshold higher than the SD alarm threshold.
Examples
# Set the SD threshold on POS interface 2/1/0 to 10e-4.
<Sysname> system-view
[Sysname] interface pos 2/1/0
[Sysname-Pos2/1/0] threshold sd 4
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