Uplink Failure Detection (Ufd) - Dell S4810 Reference Manual

Uplink Failure Detection (UFD)

Uplink failure detection (UFD) provides detection of the loss of upstream connectivity and, if you use this
with NIC teaming, automatic recovery from a failed link. UFD is supported on the S4810 Dell Networking
platform.
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.
S4810
Syntax
clear ufd-disable {interface interface | uplink-state-group
group-id}
Parameters
interface
interface
uplink-state-
group group-id
Defaults A downstream interface in a UFD-disabled uplink-state group is also disabled and is
in a UFD-Disabled Error state.
Uplink Failure Detection (UFD)
Specify one or more downstream interfaces. 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.
Re-enables all UFD-disabled downstream interfaces in the
group. The valid group-id values are from 1 to 16.
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