10G城域以太网的RPR组网及其带宽管理技术

随着现今网络应用的快速发展，用户对带宽的需求日益增大，骨干网和接入网的技术革新又使旧城域网成为网络发展的瓶颈，因此建设新一代城域网已成为各个设备制造商抢占市场的先机，是运营商拓展业务的重中之重。在介绍了城域网进行改革性建设的必要性、紧迫性以及弹性分组环（RPR）组网技术后，阐述了10G以太网作为新一代的全光城域网络传送技术的优势和RPR在10G城域网以太网组网建设中的优势．探索了RPR的带宽管理技术，并提出了RPR环路带宽共享接入策略和公平接入的构想。

Resilient packet ring technology for constructing and managing bandwidth of 10 G metro Ethernet

The boom in network application is followed by more bandwidth requirement.The renovation of the backbone nework and the access network make the metroplitan area network(MAN) become a bottleneck of the whole network.So how to construct a new MAN become an impootaint issue for the venders and to exploit new technology,and to supply new service.This paper indicates the necessity to reform the Metro net and some important technology of the MAN,states the advantages of 10 G Etherent as a technologiy of the MAN,and the advantage of Resilient Packet Ring to construct 10 G Metro Etherent,and studies the RPR bandwidth management technology,and advances an idea about the RPR fairness protocal and a bandwidth access fairness.