Configuring DAA

In some regions, small local carriers need to rent backbone carriers' lines to provide Internet access services to users. The local carriers also need to pay the backbone carriers for traffic over the backbone networks. Low fees are charged for traffic over a local network, whereas high fees are charged for traffic over a backbone network. To increase revenues, local carriers need a solution that can distinguish the two types of traffic and perform accounting based on tariff levels. DAA meets this requirement and is capable of performing differentiated accounting on traffic over both local and backbone networks.

When campus users access a campus network, the carrier does not charge any fees or charges low fees, and the carrier does not limit their access rates. However, when campus users access an external network, the carrier charges high fees and limits their access rates. DAA is capable of performing differentiated accounting and rate limit on traffic over the campus and external networks, increasing carrier revenues.

Many Internet services, such as gaming, File Transfer Protocol (FTP), video on demand (VOD), and news services, have different costs and bandwidth requirements. Carriers need to perform differentiated accounting and rate limit on different services. When network congestion occurs, the quality of the services is guaranteed based on their priorities. For example, if the priority of gaming services is higher than that of news services, the quality of the gaming services is preferentially guaranteed during network congestion. DAA can also meet this requirement. Carriers deploy various services on different servers. When users access these servers, DAA distinguishes services based on the network segments on which the servers reside and performs differentiated accounting, rate limit, and priority scheduling.