Administrator Guide

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6. (Optional) Disables upstream-link tracking without deleting the uplink-state group.
UPLINK-STATE-GROUP mode
no enable
The 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 Interface
You can manually bring up a downstream interface in an uplink-state group that UFD disabled and is in a UFD-Disabled Error state.
To re-enable one or more disabled downstream interfaces and clear the UFD-Disabled Error state, use the following command.
• Re-enable a downstream interface on the switch/router that is in a UFD-Disabled Error State so that it can send and receive traffic.
EXEC mode
clear 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 1/1-2,5,9,11-12
port-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 all UFD-disabled
downstream interfaces in the group. The range is from 1 to 16.
The following example message shows the Syslog messages that display when you clear the UFD-Disabled state from all disabled
downstream interfaces in an uplink-state group by using the clear ufd-disable uplink-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 to down: Te 0/46
02:36:43: %SYSTEM-P:CP %IFMGR-5-OSTATE_DN: Changed interface state to down: Te 0/46
02:36:43: %SYSTEM-P:CP %IFMGR-5-OSTATE_DN: Downstream interface set to UFD error-disabled: Fo 1/0
02:36:43: %SYSTEM-P:CP %IFMGR-5-OSTATE_DN: Downstream interface set to UFD error-disabled: Fo 1/4
02:36:43: %SYSTEM-P:CP %IFMGR-5-OSTATE_DN: Downstream interface set to UFD error-disabled: Fo 1/8
02:36:43: %SYSTEM-P:CP %IFMGR-5-OSTATE_DN: Downstream interface set to UFD error-disabled: Fo 1/12
02:36:43: %SYSTEM-P:CP %IFMGR-5-OSTATE_DN: Changed interface state to down: Fo 1/0
02:36:43: %SYSTEM-P:CP %IFMGR-5-OSTATE_DN: Changed interface state to down: Fo 1/4
02:36:43: %SYSTEM-P:CP %IFMGR-5-OSTATE_DN: Changed interface state to down: Fo 1/8
02:36:43: %SYSTEM-P:CP %IFMGR-5-OSTATE_DN: Changed interface state to down: Fo 1/12
02:37:29: %SYSTEM-P:CP %IFMGR-5-ASTATE_DN: Changed interface Admin state to down: Te 0/47
02:37:29: %SYSTEM-P:CP %IFMGR-5-OSTATE_DN: Changed interface state to down: Te 0/47
02:37:29 : UFD: Group:3, UplinkState: DOWN
02:37:29: %SYSTEM-P:CP %IFMGR-5-OSTATE_DN: Changed uplink state group state to down: Group 3
02:37:29: %SYSTEM-P:CP %IFMGR-5-OSTATE_DN: Downstream interface set to UFD error-disabled: Fo 1/0
02:37:29: %SYSTEM-P:CP %IFMGR-5-OSTATE_DN: Changed interface state to down: Fo 1/0
02:38:31 : UFD: Group:3, UplinkState: UP
02:38:31: %SYSTEM-P:CP %IFMGR-5-OSTATE_UP: Changed uplink state group state to up: Group 3
02:38:53: %SYSTEM-P:CP %IFMGR-5-OSTATE_UP: Downstream interface cleared from UFD error-disabled: Fo 1/0
02:38:53: %SYSTEM-P:CP %IFMGR-5-OSTATE_UP: Downstream interface cleared from UFD error-disabled: Fo 1/4
02:38:53: %SYSTEM-P:CP %IFMGR-5-OSTATE_UP: Downstream interface cleared from UFD error-disabled: Fo 1/8
02:38:53: %SYSTEM-P:CP %IFMGR-5-OSTATE_UP: Downstream interface cleared from UFD error-disabled: Fo 1/12
02:38:53: %SYSTEM-P:CP %IFMGR-5-OSTATE_UP: Downstream interface cleared from UFD error-disabled: Fo 1/16
02:38:53: %SYSTEM-P:CP %IFMGR-5-OSTATE_UP: Changed interface state to up: Fo 1/0
02:38:53: %SYSTEM-P:CP %IFMGR-5-OSTATE_UP: Changed interface state to up: Fo 1/4
02:38:53: %SYSTEM-P:CP %IFMGR-5-OSTATE_UP: Changed interface state to up: Fo 1/8
02:38:53: %SYSTEM-P:CP %IFMGR-5-OSTATE_UP: Changed interface state to up: Fo 1/12
02:38:53: %SYSTEM-P:CP %IFMGR-5-OSTATE_UP: Changed interface state to up: Fo 1/16
Uplink Failure Detection (UFD)
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