Reference Guide

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Uplink Failure Detection (UFD)
Uplink failure detection (UFD) provides detection of the loss of upstream connectivity and, if used with
NIC teaming, automatic recovery from a failed link. UFD is supported on the S5000 switch.
clear ufd-disable
Re-enable one or more downstream interfaces on the switch/router that are in a UFD-Disabled Error
state so that an interface can send and receive traffic.
S5000
Syntax
clear ufd-disable {interface type slot/port | uplink-state-
group group-id}
Parameters
interface type
slot/port
Enter the interface keyword followed by the interface
type and slot/port or number information. Valid slot numbers
are 0-11. The valid port numbers for each interface type are
listed below.
• For a 10-Gigabit Ethernet interface, enter the keyword
tengigabitethernet followed by slot/port numbers.
The port range is 0 to 63.
• For a Port Channel interface, enter the keywords port-
channel followed by a number from 1 to 128.
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. The valid group-id values are 1 to 16.
Defaults A downstream interface in an uplink-state group that has been disabled by UFD is
disabled and in a UFD-Disabled Error state.
Command
Modes
CONFIGURATION
Uplink Failure Detection (UFD)
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