downstreamAssign a port or port-channel to the uplink-state group as a downstream interface.S4810Syntax downstream interfaceTo delete an uplink-state group, enter the no downstream interfacecommand.Parameters interface Enter one of the following interface types:• Fast Ethernet: fastethernet {slot/port | slot/port-range}• 1 Gigabit Ethernet: gigabitethernet {slot/port |slot/port-range}• 10 Gigabit Ethernet: tengigabitethernet {slot/port |slot/port-range}• Port channel: port-channel {1-512 | port-channel-range}Where port-range and port-channel-range specify arange of ports separated by a dash (-) and/or individualports/port channels in any order; for example:gigabitethernet 1/1-2,5,9,11-12 port-channel1-3,5. A comma is required to separate each port and port-range entry.Defaults noneCommandModesUPLINK-STATE-GROUPCommandHistoryThis 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.Version 9.2(0.0) Introduced on the M I/O Aggregator. This command issupported in Programmable-Mux (PMUX) mode only.Version8.3.19.0Introduced on the S4820T.Version8.3.12.0Introduced on the S4810.Version 8.4.2.3 Introduced on the S-Series S50.Uplink Failure Detection (UFD) 1679