Building a robust software-based router using network processors

Spalink, Tammo; Karlin, S.; Peterson, Larry L.; Gottlieb, Yitzchak M.

doi:10.1145/502055.502056

Cited by 18 publications

(20 citation statements)

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“…For packet processing, instead of ASICs, network processor (NP) based routers were designed because they offer programming flexibility and yet are more specific in their abilities to process packets than general purpose CPUs [10]. Parallel processing of packets has been attempted in routers.…”

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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“…Component-based synthesis of network protocols has been advanced in x-kernel [3], and adopted in recent extensible software-based routers [1,10,12]. A notable example is There has been recent work on resource management in software routers.…”

Section: Related Workmentioning

confidence: 99%

“…Recently, the use of network processors in a software router, chiefly for data plane services, is reported in [10]. By using different processors (general purpose versus specialized) for various data and control plane services, new scheduling problems arise, which is an interesting area for future research.…”

Section: Related Workmentioning

confidence: 99%

Quality of service provisioning for composable routing elements

et al. 2006

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Quality of service (QoS) provisioning for dynamically composable software elements in a programmable router has not received much attention. We present a router platform that supports extensible and configurable routing elements, and provides them with access to given resource allocations. Scheduling issues for these elements are discussed: (1) flow-based scheduling, (2) the preemptibility of a pipeline of elements, (3) CPU conservation for idle elements, (4) the CPU balance between input, output, and processing elements and its effects on buffer provisioning, and (5) performance interactions between the packet forwarding plane and the service extension control plane. *

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“…Although a plethora of scheduling schemes have been proposed for multiprocessors, simple static policies, such as round robin or random distribution policy [1], [5], [6] are adopted in practice. However, these schemes do not consider the processing order or jitter problem.…”

Section: Fig 1 An Active Router In Networkmentioning

confidence: 99%

Scheduling real-time multimedia tasks in network processors

Yao

Bhuyan

IEEE Global Telecommunications Conference, 2004. GLOBECOM '04.

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Abstract-Several companies have introduced powerful network processors (NPs) that can be placed in active routers to execute application level tasks in the network. An NP consists of a number of on-chip processors to carry out packet level parallel processing operations. We propose to employ them for multimedia streaming (transcoding) to convert the incoming video streams to low bit-rate media units as per the requirements of the clients. To effectively schedule the parallel transcoding operations in an active router, we propose a Static Sequentialized BatchCoScheduling (SSBC) scheme to meet both load balancing and real-time requirements for media streaming, based on divisible load theory (DLT). We first analyze the feasibility and optimality of the load distribution schemes from the theoretical perspectives, and then present separate solutions for non-delay-sensitive streams and delay-sensitive streams. Rigorous simulations and experiments have been carried out to evaluate the performance.

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Building a robust software-based router using network processors

Cited by 18 publications

References 0 publications

Distributed PC based routers: Bottleneck analysis and architecture proposal

Distributed PC based routers: Bottleneck analysis and architecture proposal

Quality of service provisioning for composable routing elements

Scheduling real-time multimedia tasks in network processors

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