A comparative study of extensible routers

Gottlieb, Yitzchak M.; Peterson, Larry L.

doi:10.1109/opnarc.2002.1019228

Cited by 26 publications

(22 citation statements)

References 18 publications

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“…Principles of software engineering are used for better performance. A study of a few different architectures [14] concludes that modularization creates a flexible and extensible router. Linux in the data plane, Quagga and XORP [15] in the control plane, separate the different routing protocols into discrete portions of software.…”

Section: Recent Research Proposals In Routersmentioning

confidence: 99%

Distributed PC based routers: Bottleneck analysis and architecture proposal

Khan

Birke

Manjunath

et al. 2008

2008 International Conference on High Performance Switching and Routing

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Abstract-Recent research in the different functional areas of modern routers have made proposals that can greatly increase the efficiency of these machines. Most of these proposals can be implemented quickly and often efficiently in software. We wish to use personal computers as forwarders in a network to utilize the advances made by researchers. We therefore examine the ability of a personal computer to act as a router. We analyze the performance of a single general purpose computer and show that I/O is the primary bottleneck. We then study the performance of distributed router composed of multiple general purpose computers. We study the performance of a star topology and through experimental results we show that although its performance is good, it lacks flexibility in its design. We compare it with a multistage architecture. We conclude with a proposal for an architecture that provides us with a forwarder that is both flexible and scalable.

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Section: Recent Research Proposals In Routersmentioning

confidence: 99%

Distributed PC based routers: Bottleneck analysis and architecture proposal

Khan

Birke

Manjunath

et al. 2008

2008 International Conference on High Performance Switching and Routing

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“…These services add additional loads to processing capacity in the network components. New router technologies such as extensible routers [1] also need to deal with scheduling of CPU usage per packet as well as bandwidth usage per packet.…”

Section: Introductionmentioning

confidence: 99%

Flow control with processing constraint

Chong

Shin

Mo³

et al. 2005

IEEE Commun. Lett.

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Abstract-In this letter we re-examine flow control issues for a network environment where transmission links and CPUs on a data path can be jointly bottlenecked. We show that flow control without consideration of CPU congestion can significantly lose both fairness and efficiency in this environment. As a solution to this problem, we establish the notion of dual-resource proportional fairness, propose a distributed algorithm to achieve this objective and demonstrate its performance through simulations.

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“…These new functions include, e.g., packet filtering, address translation, run proxies, performance monitoring, etc. The flexibility required to cope with all these new functions motivated the definition of so called extensible routers [6], which support run-time customization of router functionality.…”

Section: Introductionmentioning

confidence: 99%

An Embedded Language Approach to Router Specification in Curry

Ramos¹,

Silva²,

Vidal³

2004

SOFSEM 2004: Theory and Practice of Computer Science

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Abstract. The development of modern routers require a significant effort to be designed, built, and verified. While hardware routers are faster, they are difficult to configure and maintain. Software routers, on the other hand, are slower but much more flexible, easier to configure and maintain, less expensive, etc. Recently, a modular architecture and toolkit for building software routers and other packet processors has been introduced: the Click system. It includes a specification language with features for declaring and connecting router elements and for designing abstractions. In this work, we introduce the domain-specific language Rose for the specification of software routers. Rose is embedded in Curry, a modern declarative multi-paradigm language. An advantage of this approach is that we have available a framework where router specifications can be transformed, optimized, verified, etc., by using a number of existing formal techniques already developed for Curry programs. Furthermore, we show that the features of Curry are particularly useful to specify router configurations with a high-level of abstraction. Our first experiments point out that the proposed methodology is both useful and practical.

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A comparative study of extensible routers

Cited by 26 publications

References 18 publications

Distributed PC based routers: Bottleneck analysis and architecture proposal

Distributed PC based routers: Bottleneck analysis and architecture proposal

Flow control with processing constraint

An Embedded Language Approach to Router Specification in Curry

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