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Potential based routing in B-P2i architecture

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4 Author(s)
Menghan Li ; Dept. of Comput. Sci. & Technol., Tsinghua Univ., Beijing, China ; Xiaoping Zhang ; Yupeng Tian ; Haixiang Zhang

The centralized switching fabric is increasingly becoming the performance bottleneck of the routers due to the constraints of the port size and the complexity of scheduling algorithm. In order to address scalability problem, interconnection networks have been widely used to build distributed switching fabrics. P2i is an asymptotically minimal node-degree interconnection network which has an ideal throughput of at least 2 under uniform traffic pattern for arbitrary node numbers. We propose B-P2i- architecture, which enhances the path diversity and shortens the network diameter of P2i. In order to balance the transmission efficiency under light load and the maximum throughput under heavy load, we present PB routing algorithm for B-P2i- architecture which is constructed by IQ routers. Our simulations using the modified BookSim simulator indicate that B-P2i- architecture using PB routing algorithm has good performance under adversary traffic patterns. The simulations also indicate that our architecture has an ideal scalability for constructing scalable routers with large capacity. To the best of our knowledge, this is the first time to utilize the concept of potential field to design adaptive routing algorithm for scalable router which is constructed by IQ routers with DIN topology.

Published in:

Information Networking (ICOIN), 2013 International Conference on

Date of Conference:

28-30 Jan. 2013