Cisco IE-3000-8TC Command Reference - Page 145

Chapter 2 IE 3000 Switch Cisco IOS Commands fcs-threshold 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. fcs-threshold value no fcs-threshold value Syntax Description value Value ranges from 6 to 11, representing a bit-error rate from 10-6 to 10-11. Defaults The default rate is 8, which is the bit error rate for Ethernet standard 10-8. Command Modes Interface configuration Command History Release 12.2(44)EX Modification This command was introduced. Usage Guidelines The Ethernet standard calls for a maximum bit error rate of 10-8. In the IE 3000 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 integer. To configure a bit error rate of 10-9, enter the value 9 for the exponent. 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 10-10: Switch(config)# interface fastethernet1/1 Switch(config-if)# fcs-threshold 10 Related Commands Command alarm facility fcs-hysteresis show fcs-threshold 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. OL-13019-01 Cisco IE 3000 Switch Command Reference 2-119