A-20
Catalyst 2950 and Catalyst 2955 Switch Command Reference
OL-10102-01
Appendix A Catalyst 2955 Alarm Commands
show fcs-threshold
show fcs-threshold
Use the show fcs-threshold user EXEC command to display the frame check sequence (FCS) bit error
rate settings on the switch interfaces.
show fcs-threshold [ | {begin | exclude | include} expression]
Syntax Description
Command Modes User EXEC
Command History
Usage Guidelines The Ethernet standard calls for a maximum bit error rate of 10
-8
. In the Catalyst 2955 switch, the bit error
rate configurable range is from 10
-6
to 10
-11
. The bit error rate input to the switch is a positive exponent.
The output displays the positive exponent; an output of 9 indicates that the bit error rate is 10
-9
.
Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output
do not appear, but the lines that contain Output appear.
Examples This is an example of output from the show fcs-threshold command. It shows the output when all ports
are set to the default FCS threshold.
Switch# show fcs-threshold
Port FCS Threshold
Fa0/1 8
Fa0/2 8
Fa0/3 8
Fa0/4 8
Fa0/5 8
Fa0/6 8
Fa0/7 8
Fa0/8 8
Fa0/9 8
<output truncated>
Related Commands
| begin (Optional) Display begins with the line that matches the expression.
| exclude (Optional) Display excludes lines that match the expression.
| include (Optional) Display includes lines that match the specified expression.
expression Expression in the output to use as a reference point.
Release Modification
12.1(12c)EA1 This command was introduced.
Command Description
fcs-threshold Sets the FCS threshold on an interface.
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