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1090 | Uplink Failure Detection (UFD)
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Clearing a UFD-Disabled Interface
You can manually bring up a downstream interface in an uplink-state group that has been disabled by UFD
and is in a UFD-disabled error state. To re-enable one or more disabled downstream interfaces and clear
the UFD-disabled error state, enter the following command:
5 description text
Command Mode:
UPLINK-STATE-GROUP
(Optional) Enters a text description of the uplink-state group.
Maximum length: 80 alphanumeric characters.
6
no enable
Command Mode:
UPLINK-STATE-GROUP
(Optional) Disables upstream-link tracking without deleting the
uplink-state group.
Default: Upstream-link tracking is automatically enabled in an
uplink-state group.
To re-enable upstream-link tracking, enter the enable command.
Command Syntax Description
clear ufd-disable
{interface interface |
uplink-state-group group-id }
Command Mode: CONFIGURATION
Re-enables a downstream interface on the switch/router that is in a
UFD-disabled error state so that it can send and receive traffic.
For interface, enter one of the following interface types:
Fast Ethernet: fastethernet {slot/port | slot/port-range}
1-Gigabit Ethernet: gigabitethernet {slot/port |slot/port-range}
10-Gigabit Ethernet:
tengigabitethernet {slot/port |slot/port-range}
Port channel: 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:
gigabitethernet 1/1-2,5,9,11-12
port-channel 1-3,5
A comma is required to separate each port and port-range entry.
uplink-state-group group-id re-enables all UFD-disabled
downstream interfaces in the group. Valid values are 1 to 16.
Step Command Syntax and Mode Description
Debug log message
Debug log message