Alcatel-Lucent 7750 Configuration Manual page 423

sf-threshold
Syntax sf-threshold threshold [multiplier multiplier]
no sf-threshold
Context config>port>ethernet>crc-monitor
Description This command specifies the error rate at which to declare the Signal Fail condition on an Ethernet interface.
The value represents M*10E-N errored frames over total frames received over W seconds of the sliding win-
dow. The CRC errors on the interface are sampled once per second. A default of 10 seconds is used when
there is no additional window-size configured. The multiplier keyword is optional. If the multiplier keyword
is omitted or no sf-threshold is specified the multiplier will return to the default value of 1.
Default no sf-threshold
Parameters value threshold — Specifies specifies the threshold value.
Values
value multiplier — Specifies specifies the multiplier value.
Values
window-size
Syntax window-size seconds
no window-size
Context config>port>ethernet>crc-monitor
Description This command specifies sliding window size over which the ethernet frames are sampled to detect signal fail
or signal degrade conditions. The command is used jointly with the sf-threshold and the sd-threshold to con-
figure the sliding window size.
Default
10
Parameters value W — The size of the sliding window in seconds over which the errors are measured.
Values
down-on-internal-error
Syntax [no] down-on-internal-error
Context config>port>ethernet
Description This command configures the system to bring a port operationally down in the event the system has detected
internal MAC transmit errors.
Default no down-on-internal-error
7750 SR Interface Configuration Guide
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1 — 9
1-10
Interface Configuration
Page 423