AutoQoS and Changing Network Conditions
AutoQoS creates its configuration based on the traffic it discovered during
the initial discovery phase with NBAR. If conditions change, you might need
to disable it, run autodiscovery again, and then re-enable AutoQoS.
Manually Tuning AutoQoS Configurations
The show auto qos command shows the class maps that AutoQoS created,
along with their match criteria and any access lists it created. It shows the
policy maps, and the policy configured for each class. It shows where the
policy was applied and any monitoring that was implemented. This can help
you determine what changes are needed to the configuration.
You can modify AutoQoS configuration in two ways:
■ Using Cisco QPM
■ Manually with the MQC
To modify using the MQC, allow the router/switch to apply its AutoQoS
configuration. Copy the relevant portions to a text editor and make the
desired changes. This might include changing the classification criteria,
combining classes, or altering the policy for a particular class, for instance.
Then replace the old configuration with the new one.