You can configure the
RUCKUS device to disable all of the ports in a LAG when the number of active member ports
drops below a specified threshold value. When a LAG is shut down because the number
of ports drops below the configured threshold, the LAG is kept intact and it is re-enabled
if enough ports become active to reach the threshold. For example, if a LAG has eight
ports, and the threshold for the LAG is five, the LAG is disabled if the number of
active ports in the LAG drops below five. If the LAG is disabled, then traffic is
forwarded over a different link or LAG.
Note: This configuration is only applicable for static LAGs.
Complete the following steps to establish a LAG consisting of four ports, and then
establish a threshold of three ports for this LAG.
Enter the global configuration
mode.
device# configure terminal
Create a static LAG.
device(config)# lag blue static id 1
Add ports to the LAG.
device(config-lag-blue)# ports ethernet 1/3/1 to 1/3/4
Configure the threshold value
for the number of active member ports in a LAG.
device(config-lag-blue)# trunk-threshold 3
In this example, if the number of active
ports drops below three, then the LAG is disabled.
When a LAG is shut down
because the number of ports drops below the configured threshold, the LAG is
kept intact and it is re-enabled if enough ports become active to reach the
threshold.
Note: The trunk-threshold command should be configured only at one
end of the trunk. If it is set on both sides, link failures will result
in race-conditions and they will not function properly.
The following example establishes a LAG consisting
of four ports, then establishes a threshold for this LAG of three ports.
device(config)# lag blue static id 1
device(config-lag-blue)# ports ethernet 1/3/1 to 1/3/4
device(config-lag-blue)# trunk-threshold 3