Clearing A Ufd-Disabled Interface - Dell S4048–ON Configuration Manual

NOTE: Downstream interfaces in an uplink-state group are put into a Link-Down state with an UFD-Disabled error
message only when all upstream interfaces in the group go down.
To revert to the default setting, use the no downstream disable links command.
4. (Optional) Enable auto-recovery so that UFD-disabled downstream ports in the uplink-state group come up when a disabled
upstream port in the group comes back up.
UPLINK-STATE-GROUP mode
downstream auto-recover
The default is auto-recovery of UFD-disabled downstream ports is enabled.
To disable auto-recovery, use the no downstream auto-recover command.
5. (Optional) Enter a text description of the uplink-state group.
UPLINK-STATE-GROUP mode
description text
The maximum length is 80 alphanumeric characters.
6. (Optional) Disable 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:
– For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then the slot/port[/subport] information.
– For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE then the slot/port information.
– For a port channel interface, 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:
gigabitethernet tengigabitethernet 1/1-1/2,1/5,1/9,1/11-1/12
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.
Uplink Failure Detection (UFD)
881