Setup Guide

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 trac.
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 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:
◦ 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.
Example of Syslog Messages Before and After Entering the clear ufd-disable uplink-state-group Command (S50)
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.
Displaying Uplink Failure Detection
To display information on the UFD feature, use any of the following commands.
• Display status information on a specied uplink-state group or all groups.
EXEC mode
show uplink-state-group [group-id] [detail]
Uplink Failure Detection (UFD)
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