Requirement:An Aruba Controller running 6.4 and above.
Solution:We can configure the below threshold values on an Aruba Controller which will trigger an SNMP trap and a syslog message to indicate that the threshold has been exceeded or dropped below the configured value.
controlpath-cpu: This parameter is the percentage of the total controlpath CPU capacity that an controller can withstand, exceeding in the threshold will trigger an alert. The default threshold for this parameter is 80%.
controlpath-memory: This parameter is the percentage of the total controlpath memory consumed by the controller, exceeding in the threshold will trigger an alert. The default threshold for this parameter is 80%.
datapath-cpu: This parameter is the percentage of the total datapath CPU capacity that an controller can withstand, exceeding in the threshold will trigger an alert. The default threshold for this parameter is 30%.
no-of-APs: The maximum number of APs that can be connected to a controller is determined by that controller’s model type and installed licenses. Configuring this value will trigger an alert when the number of APs currently connected to the controller exceeds the specific percentage of its total AP capacity. The default threshold for this parameter is 80%.
no-of-locals: We can set an alert threshold for the master controller’s capacity to support remote nodes and local controllers. A master controller can support a combined total of 256 remote nodes and local controllers. This parameter is the percentage of the total master controller capacity to support remote nodes and local controllers that it can withstand, exceeding in the threshold will trigger an alert. The default threshold for this parameter is 80%.
total-tunnel-capacity: This parameter is the percentage of the controller’s total tunnel capacity that an controller can withstand, exceeding in the threshold will trigger an alert. The default threshold for this parameter is 80%
user-capacity: This parameter is the percentage of the total resource capacity that an controller can withstand, exceeding in the threshold will trigger an alert. The default threshold for this parameter is 80%.
Configuration:Below image shows the configuration steps of the threshold values using command line interface:
Below image shows the configuration steps of the threshold values using GUI:
Note: The percentage mentioned are random values just for an example.
VerificationWe can execute the commands shown in the below image to verify the configured threshold values:
