Modifying The Port Debounce Timer Setting - Cisco WS-C6506 Software Manual

Chapter 4 Configuring Ethernet, Fast Ethernet, Gigabit Ethernet, and 10-Gigabit Ethernet Switching
Table 4-4
Port Type
Fiber Gigabit Ethernet ports
10-Gigabit Ethernet ports
To set the debounce timer on a port, perform this task in privileged mode:
Task
Step 1 Enable the debounce timer for a port.
Step 2
Verify that the debounce timer of the port is
configured correctly.
This example shows how to enable the debounce timer on port 2/1:
Console> (enable) set port debounce 2/1 enable
Debounce is enabled on port 2/1
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)
This example shows how to display the per-port debounce timer settings:
Console> (enable) show port debounce
Port
-----
2/1
2/2
Console> (enable)

Modifying the Port Debounce Timer Setting

Note Modifying the port debounce timer setting is possible only on fiber Gigabit Ethernet ports.
You can increase the port debounce timer value in increments of 100 up to 5000 milliseconds. You do
not need to enable the debounce timer on the port before adjusting the timer value. Specifying any timer
value that is greater than the default value in the disabled state enables the debounce timer.
To modify the port debounce timer setting on a port, perform this task in privileged mode:
Task
Step 1 Modify the port debounce timer setting.
Step 2 Verify that the port debounce timer setting has
been modified.
OL-8978-04
Port Debounce Timer Delay Time (continued)
Debounce link timer
---------------
enable
disable
Debounce Timer Disabled
10 milliseconds
10 milliseconds
Command
set port debounce
mod num/port num {enable | disable}
show port debounce [mod | mod_num/port_num]
Command
set port debounce mod num/port num delay time
show port debounce [mod | mod_num/port_num]
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
Setting the Port Configuration
Debounce Timer Enabled
100 milliseconds
100 milliseconds
4-11