Scaling internet routers using optics
Proceedings of the 2003 conference on Applications, technologies, architectures, and protocols for computer communications
A Scalable Switch for Service Guarantees
HOTI '05 Proceedings of the 13th Symposium on High Performance Interconnects
Logarithmic delay for N × N packet switches under the crossbar constraint
IEEE/ACM Transactions on Networking (TON)
Load balanced Birkhoff-von Neumann switches, part II: multi-stage buffering
Computer Communications
Load balanced Birkhoff-von Neumann switches, part I: one-stage buffering
Computer Communications
Matching output queueing with a combined input/output-queued switch
IEEE Journal on Selected Areas in Communications
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Network operators need high-capacity router architectures that can offer scalability, provide throughput and performance guarantees, and maintain packet ordering. However, previous router architectures based on centralized crossbar-based architectures cannot scale to fast line rates and high port counts. Recently, a new scalable router architecture called the Concurrent Matching Switch (CMS)[5]was introduced that offers scalability by utilizing a fully distributed architecture based on two identical stages of fixed configuration meshes. It has been shown that fixed configuration meshes can be scaled to very fast line rates and highport counts via optical implementations.It has also been shown that the CMS architecture can achieve 100% through-put and packet ordering with only sequential hardware and O (1) amortized time complexity operations at each linecard. However, no delay performance guarantees have been shown for CMS. In this paper, we demonstrate a general delay performance guarantee for CMS.Based on this guarantee, we propose a novel frame-based CMS architecture that can achieve a performance guarantee of O (N log N)average packet delay, where N is the number of switch ports, while retaining scalability,throughput guarantees, packet ordering, and O (1) time complexity. This architecture improves upon the best previously-known average delay bound of O (N 2)given these switch properties. We further introduce several alternative frame-based CMS architectures.