Administrator Guide

ManualsBrandsDell ManualsAccess PlatformsC9010 Modular Chassis Switch

1721

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.

Topics:

• clear ufd-disable

• debug uplink-state-group

• description

• downstream

• downstream auto-recover

• downstream disable links

• enable

• show running-config uplink-state-group

• show uplink-state-group

• uplink-state-group

• upstream

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.

C9000 Series

Syntax

clear ufd-disable {interface interface | uplink-state-group group-id}

Parameters

interface

Specify one or more downstream interfaces. For interface, enter one of the

following interface types:

● 10 Gigabit Ethernet: tengigabitethernet {slot/port |slot/ port-

range}

● 40 Gigabit Ethernet: fortyGigE {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: tengigabitethernet 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 from 1 to 16.

Defaults A downstream interface in a UFD-disabled uplink-state group is also disabled and is in a UFD-Disabled

Error state.

Command Modes CONFIGURATION

Command

History

This guide is platform-specific. For command information about other platforms, refer to the relevant Dell

Networking OS Command Line Reference Guide.

The following is a list of the Dell Networking OS version history for this command.

Uplink Failure Detection (UFD) 1727