Quality of Service (QoS): Managing Bandwidth More Effectively
Preparation for Configuring QoS
Planning a QoS Configuration
QoS uses resources in a way that requires attention to rule usage when planning a QoS configuration. Otherwise, there is an increased possibility of oversubscribing resources, which means that at some point the switch would not support further QoS configuration.
Prioritizing and Monitoring QoS Configuration Options
Plan and implement your QoS configuration in descending order of feature importance. This helps to ensure that the most important features are configured first. Also, if insufficient rule resources become a problem, this approach can help you recognize how to distribute the desired feature implementations across multiple switches to achieve your objectives. For example, a given type of traffic may be of higher importance than other traffic types you want to expedite by using QoS. In this case you should plan and configure your QoS resource usage first for the most important traffic type before configuring QoS resource usage for other traffic types. If insufficient resources remain for all of the QoS implementation you want, try spreading this implementation across multiple switches.