Building a robust software-based router using network processors

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

doi:10.1145/502034.502056

Cited by 115 publications

(34 citation statements)

References 15 publications

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“…Commercial examples of network processors are the Intel IXP2350 [12], the EZchip NP-3 [13], and the LSI APP [14]. Network processors have been used in a number of scenarios to provide advanced packet processing functions ranging from simple forwarding [15] to complex functions like network measurement [16].…”

Section: Tcp Processing On Network Processorsmentioning

confidence: 99%

“…The congestion control mechanism of the sender will slow down the sending rate until buffer space becomes available. Packets are only forwarded when the downstream connection does not have too much outstanding data (lines [15][16][17][18]. Lines 20-26: If an ACK is received, then buffer space in the complementary flow (flow in the opposite direction, denoted by f ) can be released.…”

Section: Acceleration Algorithmmentioning

confidence: 99%

“…Conventional router Typical network processor systems are equipped with multiple processor cores (4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16) and large SRAM and DRAM memories (1-8 MB SRAM, 64-256 MB DRAM). Assuming a maximum window size of 64 kB, a buffer of 128 kB needs to be allocated for maximum efficiency.…”

Section: Sendermentioning

confidence: 99%

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“…The flexibility of Programmable Networks is limited by the support and resource capacity of the forwarding hardware. Experiments [5,6] have indicated that their functionalities cannot go beyond levels supported by commercial modules while meeting line speed handling requirements. Furthermore, the reliability of Programmable Networks hinges on restricting service deployment to a trusted single body for each domain.…”

Section: Introductionmentioning

confidence: 99%

Serviter: A service-oriented programmable network platform for shared infrastructure

Yousef

Hoang

Rogers

2006

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“…There are basically three major router architectures [1]: software based routers, Application Specifi c Integrated Circuit (ASIC) based routers and network processor based routers [2]. According to [1], network processor based routers are the optimal building block for next generation networks (NON) as they provide the speed of ASIC-based routers and the flexibility of software-based routers.…”

mentioning

confidence: 99%

Configurable software-based edge router architecture

Louati¹,

Jouaber²,

Zeghlache³

2004

2004 4th Workshop on Applications and Services in Wireless Networks, 2004. ASWN 2004.

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This paper explores the use of open programmable edge router technologies to achieve dynamic configuration, adaptation and management of networks and provide support for short range wireless technologies such as WPANs. The paper focuses on software based solutions relying on the Click framework to design the edge routers on standard PCs and operating systems in an open source and software context_ Results on achievable performance using these software based solutions and Click are reported. The impact on traffic flows and applications in terms of packet losses and delays is evaluated.E dge routers are expected to play a major role in next generation networks as they will partake in the control of most connections, sessions, QoS, security and mobility management functions. Moreover, to ensure the convergence of mobile and fixed technologies, intemetworking and cooperation will mostly be achieved at the edges while fast forwarding will ensure rapidity and simplicity in core network routers. Unfortunately, most existing routers have static architectures with networking functions rigidly implemented by vendors. A major challenge is to increase the fl exibility and adaptability of routers while at the same time offering higher packet forwarding performance. There are basically three major router architectures [1]: software based routers, Application Specifi c Integrated Circuit (ASIC) based routers and network processor based routers [2]. According to [1], network processor based routers are the optimal building block for next generation networks (NON) as they provide the speed of ASIC-based routers and the flexibility of software-based routers. Both of ASIC-based and NP-based routers are based on the control and data planes separation principle [3]. Recently, many extensible frameworks have been proposed to improve software-based router development [4-7]. In [8] and [9], Click SMP is proposed as a modular language to ease the design and development of software based routers. The objective in this paper is to assess the feasibility and viability of software based solutions to design open programma ble routers that not only exhibit high flexibility but also acceptable performance. This is achieved by introducing some of the advantages and paradigms of the network processor based routers into the software based technologies. We get our inspiration from the mTF ForCES (Forwarding and Control Element Separation) [10] working group which defines a set of standard mechanisms to separate the control and forwarding planes for NON programma ble networks. This paper describes the design, implementation and evaluation of an extensible, scalable and programma ble software-based edge router architecture in which the data plane functionality of the router can be adapted and extended dynamically through the use of the Click SMP modular language. The goals of the proposed model are to achieve : • extensibility: through new API services that can be dynamically added at run time, • flexibility: using basic control and data plane buildi...

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Building a robust software-based router using network processors

Cited by 115 publications

References 15 publications

Transparent TCP acceleration

Transparent TCP acceleration

Serviter: A service-oriented programmable network platform for shared infrastructure

Configurable software-based edge router architecture

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