
6 Chapter 1: Introducing IP Quality of Service
of service requirements to be met by the network in transporting a flow. QoS provides end-
to-end service guarantees and policy-based control of an IP network’s performance
measures, such as resource allocation, switching, routing, packet scheduling, and packet
drop mechanisms.
The following are some main IP QoS benefits:
•
It enables networks to support existing and emerging multimedia service/application
requirements. New applications such as Voice over IP (VoIP) have specific QoS
requirements from the network.
• It gives the network operator control of network resources and their usage.
• It provides service ...