Command History This guide is platform-specific. For command information about other platforms, see the relevant Dell NetworkingOS Command Line Reference Guide.Version Description9.10.0.2 Introduced on the Z9100–ON.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.Usage Information When one upstream interface in an uplink-state group goes down, you can configure the number of downstreaminterfaces 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-stategroup 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.enableEnable uplink state group tracking for a specific UFD group.Syntax enableTo 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-GROUPCommand History This guide is platform-specific. For command information about other platforms, see the relevant Dell NetworkingOS Command Line Reference Guide.Version Description9.10.0.2 Introduced on the Z9100–ON.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.1622 Uplink Failure Detection (UFD)
