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• group-id: values are from 1 to 16.
To delete an uplink-state group, use the no uplink-state-group group-id command.
2. Assign a port or port-channel to the uplink-state group as an upstream or downstream interface.
UPLINK-STATE-GROUP mode
{upstream | downstream} interface
For interface, enter one of the following interface types:
• 10 Gigabit Ethernet: enter tengigabitethernet {slot/port |slot/port-range}
• 40 Gigabit Ethernet: enter fortygigabitethernet {slot/port |slot/port-range}
• Port channel: enter 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:
upstream gigabitethernet 1/1-2,5,9,11-12
downstream port-channel 1-3,5
• A comma is required to separate each port and port-range entry.
To delete an interface from the group, use the no {upstream | downstream} interface
command.
3. Configure the number of downstream links in the uplink-state group that will be disabled (Oper
Down state) if one upstream link in the group goes down.
UPLINK-STATE-GROUP mode
downstream disable links {number | all}
• number: specifies the number of downstream links to be brought down. The range is from 1 to
1024.
• all: brings down all downstream links in the group.
The default is no downstream links are disabled when an upstream link goes down.
To revert to the default setting, use the no downstream disable links command.
4. (Optional) Enable auto-recovery so that UFD-disabled downstream ports in the uplink-state group
come up when a disabled upstream port in the group comes back up.
UPLINK-STATE-GROUP mode
downstream auto-recover
The default is auto-recovery of UFD-disabled downstream ports is enabled.
To disable auto-recovery, use the no downstream auto-recover command.
5. (Optional) Enters a text description of the uplink-state group.
UPLINK-STATE-GROUP mode
description text
The maximum length is 80 alphanumeric characters.
6. (Optional) Disables upstream-link tracking without deleting the uplink-state group.
UPLINK-STATE-GROUP mode
944
Uplink Failure Detection (UFD)