Reference Guide
downstream
Assign a port or port-channel to the uplink-state group as a downstream interface.
S4820T
Syntax
downstream interface
To delete an uplink-state group, enter the no downstream interface 
command.
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 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.
Defaults none
Command 
Modes
UPLINK-STATE-GROUP
Command 
History
This 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 is 
supported in Programmable-Mux (PMUX) mode only.
Version 
8.3.19.0
Introduced on the S4820T.
Version 
8.3.12.0
Introduced on the S4810.
Version 8.4.2.3 Introduced on the S-Series S50.
Uplink Failure Detection (UFD)
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