Administrator Guide

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 8.3.11.1 Introduced on the Z9000.
Version 8.5.1.0 Added support for 4-port 40G line cards on ExaScale.
Version 8.3.7.0 Introduced on the S4810.
Version 7.6.1.0 Introduced on the S-Series.
Version 7.5.1.0 Introduced on the C-Series.
Version 6.5.1.0 Introduced on the E-Series.
Uplink Failure Detection (UFD)
Uplink failure detection (UFD) provides detection of the loss of upstream connectivity and, if you use this
with network interface controller (NIC) teaming, automatic recovery from a failed link.
NOTE: In Standalone, VLT, and Stacking modes, the UFD group number is 1 by default and cannot
be changed.
debug uplink-state-group
Enable debug messages for events related to a specified uplink-state group or all groups.
Syntax
debug uplink-state-group [group-id]
To turn off debugging event messages, enter the no debug uplink-state-
group [group-id] command.
Parameters
group-id Enables debugging on the specified uplink-state group. The
valid group-id values are from 1 to 16.
Defaults none
Command
Modes
EXEC Privilege
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.
434
PMUX Mode of the I/O Aggregator