Configuring A Timeout Period For Ports In Errdisable State - Cisco WS-X6066-SLB-APC - Content Switching Module Software Manual

Chapter 4 Configuring Ethernet, Fast Ethernet, and Gigabit Ethernet Switching
Table 4-4
before and after the switch enables the debounce timer.
Table 4-4
Port Type
10BASE-FL ports
10/100BASE-TX ports
100BASE-FX ports
10/100/1000BASE-TX ports
1000BASE-TX ports
Fiber 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
Link debounce enabled on port 2/1
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)

Configuring a Timeout Period for Ports in errdisable State

A port is in errdisable state if it is enabled in NVRAM, but is disabled at runtime by any process. For
example, if UniDirectional Link Detection (UDLD) detects a unidirectional link, the port shuts down at
runtime. However, because the NVRAM configuration for the port is enabled (you have not disabled the
port), the port status is shown as errdisable.
Once a port is in the errdisable state, you have to reenable it manually. The errdisable timeout feature
allows you to configure a timeout period for ports in errdisable state; the ports are reenabled
automatically eliminating the need to reenable all the errdisabled ports manually.
78-13315-02
lists the time delay that occurs before the switch notifies the main processor of a link change
Port Debounce Timer Delay Time
Link debounce
---------------
enable
disable
Catalyst 6000 Family Software Configuration Guide—Releases 6.3 and 6.4
Debounce Timer Disabled
300 milliseconds
300 milliseconds
300 milliseconds
300 milliseconds
300 milliseconds
10 milliseconds
Command
set port debounce
mod num/port num {enable | disable}
show port debounce [mod | mod_num/port_num]
Setting the Port Configuration
Debounce Timer Enabled
3100 milliseconds
3100 milliseconds
3100 milliseconds
3100 milliseconds
3100 milliseconds
100 milliseconds
4-9