Cisco 7609-S Software Configuration Guide - Page 139

Chapter 9 Configuring Interfaces Configuring Optional Interface Features To configure the debounce timer on a port, perform this task: Command Step 1 Router(config)# interface type1 slot/port Purpose Selects the port to configure. Step 2 Router(config-if)# link debounce [time debounce_time] Router(config-if)# no link debounce Configures the debounce timer. Reverts to the default setting. Step 3 Router# show interfaces debounce Verifies the configuration. 1. type = ethernet, fastethernet, gigabitethernet, or tengigabitethernet When configuring the debounce timer on a port, note the following information: • The time keyword is supported only on fiber Gigabit Ethernet ports. • You can increase the port debounce timer value in increments of 100 milliseconds up to 5000 milliseconds on ports operating at 1000 Mpbs over copper media. • Only releases earlier than Release 12.2(17a)SX support WS-X6502-10GE. • Releases earlier than Release 12.2(18)SXD assume that 10 Gbps ports use fiber media. • Release 12.2(18)SXD and later releases recognize 10 Gbps copper media. • Releases earlier than Release 12.2(18)SXD do not detect media-only changes. • Release 12.2(18)SXD and later releases detect media-only changes. Table 9-2 lists the time delay that occurs before notification of a link change. Table 9-2 Default Port Debounce Timer Delay Times Port Type Ports operating at 10 Mpbs or 100 Mbps Ports operating at 1000 Mpbs or 10 Gbps over copper media Ports operating at 1000 Mpbs or 10 Gbps over fiber media WS-X6502-10GE 10-Gigabit ports 1. 10 milliseconds with Release 12.2(18)SXF13 and later releases. Debounce Timer Disabled Debounce Timer Enabled 300 milliseconds 3100 milliseconds 300 milliseconds 10 milliseconds1 3100 milliseconds 100 milliseconds 1000 milliseconds 3100 milliseconds Note On all 10-Gigabit Ethernet ports, the Debounce Timer Disabled is 10 milliseconds and the Debounce Timer Enabled is 1 second. This example shows how to enable the port debounce timer on Fast Ethernet port 5/12: Router(config)# interface fastethernet 5/12 Router(config-if)# link debounce Router(config-if)# end This example shows how to display the port debounce timer settings: Router# show interfaces debounce | include enable Fa5/12 enable 3100 OL-4266-08 Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX 9-15