Users Guide
Command History
This guide is platform-specic. 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 Description
9.2(0.0) Introduced on the M I/O Aggregator.
Usage Information
You can assign physical port or port-channel interfaces to an uplink-state group.
You can assign an interface to only one uplink-state group. Congure each interface assigned to an uplink-
state group as either an upstream or downstream interface, but not both.
You can assign individual member ports of a port channel to the group. An uplink-state group can contain
either the member ports of a port channel or the port channel itself, but not both.
Related Commands
• upstream — assigns a port or port-channel to the uplink-state group as an upstream interface.
downstream auto-recover
Enable auto-recovery so that UFD-disabled downstream ports in an uplink-state group automatically come up when a disabled
upstream port in the group comes back up.
Syntax
downstream auto-recover
To disable auto-recovery on downstream links, use the no downstream auto-recover command.
Defaults The auto-recovery of UFD-disabled downstream ports is enabled.
Command Modes UPLINK-STATE-GROUP
Supported Modes Programmable-Mux (PMUX)
Command History
Version Description
9.4(0.0) Supported on the FN I/O Aggregator.
9.2(0.0) Supported on the M I/O Aggregator.
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.
downstream disable links
Congure the number of downstream links in the uplink-state group that are disabled if one upstream link in an uplink-state group
goes down.
Syntax
downstream disable links {number | all}
Uplink Failure Detection (UFD)
383