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Design of a Qos-Based Reconfigurable Priority Active Queue Management for IP Networks

DOI: 10.5923/j.eee.20120202.13

Keywords: Diffserv, IP Switch, Qos, Psoc, CBWFQ, AQM, WFQ, Reconfigurable Architecture, RPAQM

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Abstract:

This paper presents a reconfigurable and scalable architecture of a high-performance IP switch to improve network quality of service (QoS). Quality of services, in terms of delay, through-put and loss rate, can be provided by using a mechanism support like scheduling and buffer management architecture of packet switching IP networks. The proposed architecture consists of a new memory management data structure based on circular linked lists. The linked lists include different priorities levels with a pipelined organization for the reconfigurable priority active queues management. The architecture also scales dynamically to support a large number of priority levels and a large queue size. The new data structure enables us to configure the architecture based on network service domain. Detailed description of new data structures of the proposed algorithms and their corresponding implementations are presented as well.

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