Analysis and Implementation of an Open Programmable Router Based on Forwarding and Control Element Separation |
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Authors: | Wei-Ming Wang Li-Gang Dong Bin Zhuge |
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Affiliation: | (1) Institute of Networks and Communications Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China |
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Abstract: | A router architecture based upon ForCES (Forwarding and Control Element Separation), which is being standardized by IETF ForCES working group, gains its competitive advantage over traditional router architectures in flexibility, programmability, and cost-effectiveness. In this paper, design and implementation of a ForCES-based router (ForTER) is illustrated. Firstly, the implementation architecture of ForTER is discussed. Then, a layered software model, which well illustrates ForCES features, is proposed. Based on the model, design and implementation of Control Element (CE) and Forwarding Element (FE) in ForTER are introduced in detail. Moreover, security for ForTER is considered and an algorithm to prevent DoS attacks is presented. Lastly, experiments of ForTER are illustrated for routing and running routing protocols, network management, DoS attack prevention, etc. The experimental results show the feasibility of the ForTER design. Consequently, the ForTER implementation basically testifies the feasibility of ForCES architecture and some IETF ForCES specifications. |
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Keywords: | computer network router ForCES open programmable protocol architecture network element |
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