Dell Command Line Reference Guide for the S4048–ON System


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.

clear ufd-disable {interface interface | uplink-state-group group-id}
interface interface
Specify one or more downstream interfaces. For interface, enter one of the following interface types:
  • For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then the slot/port[/subport] | slot/port[/subport]-range
  • 40-Gigabit Ethernet:fortyGigE {slot/port}
  • Port channel: port-channel {1–128 | 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.

If a 40G port is fanned-out into 10G ports, the range is entered as slot/sort/subport-slot/port/subport.

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.
A downstream interface in a UFD-disabled uplink-state group is also disabled and is in a UFD-Disabled Error state.
Command Modes
Command History

This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide.

Introduced on the Z9100–ON.
Introduced on the S3100 series.
Introduced on the S3148.
Introduced on the S4048-ON.
Introduced on the S3048-ON.
Introduced on the Z9500.
Introduced on the M I/O Aggregator. This command is supported in Programmable-Mux (PMUX) mode only.
Introduced on the S4820T.
Introduced on the S4810.
Introduced on the S-Series S50.
Related Commands
  • downstream — assigns a port or port-channel to the uplink-state group as a downstream interface.
  • uplink-state-group — creates an uplink-state group and enables the tracking of upstream links.

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