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Catalyst 6500 Series Switch Command Reference—Release8.4
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Chapter2 Catalyst 6500 Series Switch and ROM Monitor Commands
set port debounce
Usage Guidelines The debounce timer is the time the firmware waits before notifying the supervisor engine of a link
change at the physical layer.
Setting the debounce timer value to 200 milliseconds or from 300 to 5000 milliseconds is possible only
for gigabit fiber ports. You do not need to enable the debounce timer on a gigabit fiber port before
adjusting the timer. Any timer value that is greater than the default value in disabled state is considered
a value that enables the timer.
For 10/100 ports and 100BASE-FX ports in the disabled state, the firmware may take up to 600
milliseconds to notify the supervisor engine of a link change because the firmware polling time is every
300 milliseconds.
For 10/100 ports and 100BASE-FX ports in the enabled state, the firmware m ay ta ke up t o 3400
milliseconds to notify the supervisor engine of a link change because the firmware polling time is every
300 milliseconds.
Examples This example shows how to enable the debounce timer for a specific port on a specific module:
Console> (enable) set port debounce 1/1 enable
Debounce is enabled on port 1/1.
Warning:Enabling port debounce causes Link Up/Down detections to be delayed.
It results in loss of data traffic during debouncing period, which might
affect the convergence/reconvergence of various Layer 2 and Layer 3
protocols.
Use with caution.
Console> (enable)
Related Commands show port debounce