Fcs-Threshold - Cisco Catalyst 2950 Command Reference Manual

Appendix A Catalyst 2955 Alarm Commands

fcs-threshold

Use the fcs-threshold interface configuration command to set the frame check sequence (FCS) bit error
rate. Use the no form of the command to return to the default setting.
Syntax Description
value
Defaults The default for this bit error rate is 8, which is the bit error rate for Ethernet standard 10
Command Modes Global configuration
Command History Release
12.1(12c)EA1
Usage Guidelines The Ethernet standard calls for a maximum bit error rate of 10
rate configurable range is from 10
To configure an bit error rate of 10
You can set an FCS error hysteresis threshold on the switch to prevent the toggle of the alarm when the
actual bit error rate fluctuates near the configured bit error rate by using the alarm facility fcs hysteresis
global configuration command.
Examples
This example shows how to set the FCS bit error rate for a port to 10
Switch(config)# interface fastethernet0/1
Switch(config-if)# fcs-threshold 10
Related Commands Command
alarm facility fcs-hysteresis
show fcs-threshold
OL-10102-01
fcs-threshold value
no fcs-threshold value
Value ranges from 6 to 11, representing a bit error rate from 10
Modification
This command was introduced.
-6 -11
to 10 . The bit error rate input to the switch is a positive exponent.
-9
, enter the value 9 for the exponent.
Description
Sets the FCS hysteresis threshold for the switch in a percentage of
allowed fluctuation from the FCS bit error rate configured on a port.
Displays the FCS error bit rate settings on each interface as positive
exponents.
Catalyst 2950 and Catalyst 2955 Switch Command Reference
-8
. In the Catalyst 2955 switch, the bit error
-10
:
fcs-threshold
-6 -11
to 10 .
-8
.
A-9