Design & Application Of IP Over DWDM In MAN

There are two obvious characters in the development of MAN: One is"everything over IP". Today, all kinds of applications, including voice, data, and video, are packed into IP and transmitted in the internet. The second character is that the WDM obtains widely used in the MAN. The WDM application resolves the need to bandwidth in the MAN. A fiber can supply hundredfold bandwidth via WDM. These characters enable IP over WDM to become the best solution in the MAN.At beginning of the paper, it introduces some common solutions in metro optical networks and the network construction of IP over WDM. In the second part of the paper, it tells some new technologies such as ROADM in WDM, and it are these new technologies that put WDM being widely used in the MAN today.The part from third charter to sixth is the key part of the paper. Basing on the needs of the OVD (Video on Demand) system, it has done some research on the design and application of IP over WDM in the MAN. Though analyzing to Cisco ONS 15454 DWDM system, and thinking of the needs of OCN in VOD system, the transmission network of VOD is designed. The network uses Cisco ONS 15454 DWDM as the transmission platform, realizing the transmission of OCN video services. In the third part of the paper, it tells the hardware composition of the system, and in the fourth part, it introduces the network management function of the system and in the part of fifth and sixth chapter, it is about the design and application of the transmission network in the VOD system. In order to meet market's need to interactive TV, the system of VOD is put forward and developed by OCN, and now most of the work has been finished, and it is trial-running. There are some innovation and practical value in the paper"Research & Design of IP over WDM in the MAN": firstly, the network is made up of four optical path protection rings, and comparing with the existing network, the network is simpler in structure, stronger in survivability, and lower in cost, so it has higher practical value; secondly, the network is made up of multi service WDM platform, it can not only satisfy the need of video transmission, but also bear other services and supply light path lease, it can backup the backbone existing, too. So it can reduce the capital expense and improve the rate of investing.As main number of this transport project, my main responsibility is network designing, and also I attend other part of the project, such as existing IP network analyzing, resource demand analyzing, and equipments installing, testing. All the problems met in the project were resolved though discussing among the whole team numbers. For the integrity of this paper and take the advantage of my attributes to project, this thesis introduces background and research status of MAN. Before designing, we should get to know function and character of the transport platform, so it adds some description about the hardware and network management of the transmission platform in the paper.