Implementation For QoS Of IP Over WDM On MPLmS

In the past 20 years, the Internet traffic, IP based networks and applications are growing at exponential rate, traditional networks are evolving into a new generation optical networks which are fit for transmitting IP traffic. This has made a worldwide focus to research the IP based high-speed broadband networks, especially the IP over WDM.The past several years have seen great efforts in building hardware-based high-speed electronic IP routers. IP routers with capacity up to a few hundred gigabits per second are available now. However, there is still a serious mismatch between transmission capacity of WDM fibers and the switching capacity of electronic IP routers. It is that in current layered network architecture caused by multi-layer functional duplication and complicated processing. The layered network architecture is no longer adapted to the development of the Internet. We need to design new network architecture to meet the bandwidth requirement of Internet traffic. IP over WDM is considered as a promissing solution for the next generation Internet since it has fewer intermediate layers and can void some functionality redundancy in the intermediate layers like SONET/SDH.The purpose of this papeer is how to realize the IP over WDM. We introduce MPLmS technology, which combines MPLS traffic engineering control over optical network. By decomposing and reorganizing the functionality of ATM and SDH, we simple the middle-layer of IP over WDM.In this paper, after studying and analyzing the basic principle of MPLmS, we discuss the technology of MPLmS unified control plane. Particularly the functional modules and the framework for the unified control plane are investigated in detail.After studying the style of wavelength label, we bring forward the method of map from priority class to wavelength label. Finally, the strategy of label distribution is emphasized to discussed, and a new feedback round robin algorithm was proposed. On the basis of improving WFQ, a novel combined WFQ and feedback round robin algorithm is proposed to distribute the label. We design a simulation platform using OPNET. The simulation results show that the proposed algorithm can reduce the transfer delay. Moreover, provide better performance and stronger adaptability.The new type algorithm is of importantreference significance to the network equipment providers and the WDM researchers.