Administrator Guide

Related
Commands
● upstream— assigns a port or port-channel to the uplink-state group as an upstream interface.
● uplink-state-group — creates an uplink-state group and enables the tracking of upstream links.
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
Configure 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}
To revert to the default setting, use the no downstream disable links command.
Parameters
number Enter the number of downstream links to be brought down by UFD. The range is
from 1 to 1024.
all Brings down all downstream links in the group.
Defaults No downstream links are disabled when an upstream link in an uplink-state group goes down.
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.
Usage
Information
A user-configurable number of downstream interfaces in an uplink-state group are put into a link-down
state with an UFD-Disabled error message when one upstream interface in an uplink-state group goes
down.
If all upstream interfaces in an uplink-state group go down, all downstream interfaces in the same uplink-
state group are put into a link-down state.
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.
Uplink Failure Detection (UFD) 301