network PC audit

A fair amount of network PC audit exists on QoS concepts, technologies, and features. The purpose of this book is not to reiterate in depth how these tools work, but rather to show how these tools interact with each other and what combination of tools can be used to achieve the overall design objectives of a network. However, to lay the context for the designs set forth in this book, a brief overview of the toolset follows

Packets or frames entering a network device must be analyzed to determine the treatment that they should be given. This analysis is referred to as classification. Classification is the first QoS function to occur for any given QoS policy, and it can occur repeatedly at various stages of policy enforcement. To reduce the requirement for detailed recursive classification, it generally is recommended that traffic types be classified as close to their network PC audit as possible and that their packets be marked accordingly