| This dissertation is dedicated to SUPANET and 100 Gigabit Ethernet. SUPANET is an NGI framework based on a Single-layer User-data switching Platform Architecture (SUPA) and developed at Sichuan Network Communication Key Laboratory. SUPA separates User-data transfer & switching platform from Signaling & Management platform by adopting the out-band signaling concept. SUPANET simplifies User-data transfer & switching platform to a single physical layer platform and provides high-performance and services with QoS guaranteeIn recent years, Ethernet is expanding to MAN (Metropolitan Area Network) and WAN (Wide Area Network) fields with its own advantages such as low cost, high reliability and easy installation and maintenance. People begin to pay attention to Carrier Ethernet technology such as PBB and PBT, which shows the advantages of Ethernet technology. The demand of the higher speed data transfer in broadband service promotes the research on 100G Ethernet. The final standard for 100G Ethernet has been formally released in June 2010. Considering the development tendency of Ethernet, this dissertation researches Ethernet-oriented Physical Frame Timeslot Switching sublayer which integrats the technology of 100G Ethernet and supports multi-platform in the backbone subnetwork.First of all, this dissertation analyzes the characteristics of SUPANET and 100G Ethernet. The key problems of integration are proposed. First, MAC frames are not capsulated to Ethernet-oriented Physical Frames (EPF). Second, the existing network equipments are compatible. Third, services with QoS guarantee which are provided by SUPANET need to be reserved. To solve the problems, the author has designed the method of distinguishing MAC frames and Ethernet-oriented Physical Frames and the architecture of Ethernet-oriented Physical Frame Timeslot Switching sublayer which has been redefined the function of each sublayer. But according to the principles of Ethernet switching, the switches get all the users' MAC address through the MAC address learning and broadcast function and so on. It is no longer fit for the backbone subnetwork to complete data transmission process by Purpose MAC Address. Considering the problem, the author designs two solutions to solve the data transmission process. They use MAC address plus VLI and a series of VLI to be the labels to tag the virtual path. And they use services with QoS guarantee which change the best-effort transmission to QoS gauatanteed transmission.Having finished the relevant design of the data transmission process. simulation experiments of the two solutions have been carried out with OPNET. The results of the author's simulation work show that the solutions are operational. At last, the author proposes that if the Ethernet-oriented Physical Frames are scheduled first, they can get better services with QoS guarantee. And the results of the simulation work show the method is feasible. |
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