Where port-range and port-channel-range specify a rangeof ports separated by a dash (-) and/or individual ports/portchannels in any order; for example: tengigabitethernet1/1-2,5,9,11-12 port-channel 1-3,5. A comma isrequired to separate each port and port-range entry.uplink-state-group group-idRe-enables all UFD-disabled downstream interfaces in thegroup. 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 aUFD-Disabled Error state.Command Modes CONFIGURATIONCommand History This guide is platform-specific. For command information about other platforms, referto the relevant Dell Networking OS Command Line Reference Guide.The following is a list of the Dell Networking OS version history for this command.Version Description9.9(0.0) Introduced on the C9010.9.2(1.0) Introduced on the Z9500.8.3.19.0 Introduced on the S4820T.8.3.12.0 Introduced on the S4810.8.4.2.3 Introduced on the S-Series S50.RelatedCommands • downstream — assigns a port or port-channel to the uplink-state group as adownstream interface.• uplink-state-group — creates an uplink-state group and enables the tracking ofupstream links.debug uplink-state-groupEnable debug messages for events related to a specified uplink-state group or all groups.C9000 SeriesSyntax debug uplink-state-group [group-id]To turn off debugging event messages, enter the no debug uplink-state-group[group-id] command.Uplink Failure Detection (UFD) 2192
