Specifications

A-20
Catalyst 2950 and Catalyst 2955 Switch Command Reference
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Appendix A Catalyst 2955-Specific 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
are not displayed, but the lines that contain Output are displayed.
Examples This example 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
Fa0/10 8
Fa0/11 8
Fa0/12 8
Fa0/13 8
Fa0/14 8
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 first introduced.
Command Description
fcs-threshold Sets the FCS threshold on an interface.