Command Line 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
Command History
Version 9.0(1.3) Introduced on the S5000.
Related
Commands
• downstream – assigns a port or port-channel to the uplink-state group as a
downstream interface.
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