Users Guide

Usage Information
When one upstream interface in an uplink-state group goes down, you can configure the number of
downstream interfaces in an uplink-state group are put into a link-down state with an UFD-Disabled
error message.
If all upstream interfaces in an uplink-state group go down, all downstream interfaces in the same
uplink-state group are put into a link-down state.
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.
enable
Enable uplink state group tracking for a specific UFD group.
Syntax
enable
To disable upstream-link tracking without deleting the uplink-state group, use the no enable
command.
Defaults Upstream-link tracking is automatically enabled in an uplink-state group.
Command Modes UPLINK-STATE-GROUP
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell
Networking OS Command Line Reference Guide.
Version Description
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.2(1.0) Introduced on the Z9500.
9.2(0.0) Introduced on the M I/O Aggregator. This command is supported in
Programmable-Mux (PMUX) mode only.
8.3.19.0 Introduced on the S4820T
8.3.12.0 Introduced on the S4810.
8.4.2.3 Introduced on the S-Series S50.
Related
Commands
• uplink-state-group — create an uplink-state group and enables the tracking of upstream links.
show running-config uplink-state-group
Display the current configuration of one or more uplink-state groups.
Syntax
show running-config uplink-state-group [group-id]
Parameters
group-id Displays the current configuration of all uplink-state groups or a specified group.
The valid group-id values are from 1 to 16.
Defaults none
Uplink Failure Detection (UFD) 1659