6 (Optional) Disables upstream-link tracking without deleting the uplink-state group.UPLINK-STATE-GROUP modeno enableThe default is upstream-link tracking is automatically enabled in an uplink-state group.To re-enable upstream-link tracking, use the enable command.Clearing a UFD-Disabled InterfaceYou can manually bring up a downstream interface in an uplink-state group that UFD disabled and is in aUFD-Disabled Error state.To re-enable one or more disabled downstream interfaces and clear the UFD-Disabled Error state, use thefollowing command.• Re-enable a downstream interface on the switch/router that is in a UFD-Disabled Error State so that it cansend and receive traffic.EXEC modeclear ufd-disable {interface interface | uplink-state-group group-id}For interface, enter one of the following interface types:• 10-Gigabit Ethernet: enter tengigabitethernet {slot/port | slot/port-range}• 40-Gigabit Ethernet: enter fortyGigE {slot/port |slot/port-range}• Port channel: enter port-channel {1-512 | port-channel-range}• Where port-range and port-channel-range specify a range of ports separated by a dash(-) and/or individual ports/port channels in any order; for example:tengigabitethernet 1/1-2,5,9,11-12port-channel 1-3,5• A comma is required to separate each port and port-range entry.clear ufd-disable {interface interface | uplink-state-group group-id}: re-enables allUFD-disabled downstream interfaces in the group. The range is from 1 to 16.Example of Syslog Messages Before and After Entering the clear ufd-disable uplink-state-groupCommandThe following example message shows the Syslog messages that display when you clear the UFD-Disabledstate from all disabled downstream interfaces in an uplink-state group by using the clear ufd-disableuplink-state-group group-id command. All downstream interfaces return to an operationally up state.02:36:43: %SYSTEM-P:CP %IFMGR-5-ASTATE_DN: Changed interface Admin state todown: Te 0/4602:36:43: %SYSTEM-P:CP %IFMGR-5-OSTATE_DN: Changed interface state to down: Te0/4602:36:43: %SYSTEM-P:CP %IFMGR-5-OSTATE_DN: Downstream interface set to UFD error-disabled: Fo 1/002:36:43: %SYSTEM-P:CP %IFMGR-5-OSTATE_DN: Downstream interface set to UFD error-disabled: Fo 1/402:36:43: %SYSTEM-P:CP %IFMGR-5-OSTATE_DN: Downstream interface set to UFD error-disabled: Fo 1/802:36:43: %SYSTEM-P:CP %IFMGR-5-OSTATE_DN: Downstream interface set to UFD error-Uplink Failure Detection (UFD) 1127
