Traffic management for an ATM switch with per-VC queuing: concept and implementation

Briem, Uwe; Wallmeier, Eugen; Beck, Carl; Matthiesen, F.

doi:10.1109/35.649332

Cited by 19 publications

(2 citation statements)

References 6 publications

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“…They will be drained when the overload has disappeared to yield a small steady-state queue length N vq0 . This allows the use of a memory pool for dynamically assigning buffer space to the per-VCs queues [12] and a guarantee of scalability in the number of active VCs.…”

Section: Effectivenessmentioning

confidence: 99%

Modeling and Simulation of an ABR Flow Control Algorithm Using a Virtual Source/Virtual Destination Switch

Cseh

2002

SIMULATION

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The Available Bit Rate (ABR) service class of Asynchronous Transfer Mode networks uses a feedback control mechanism to adapt to varying link capacities. The Virtual Source/Virtual Destination (VS/VD) technique offers the possibility to segment the otherwise end-to-end ABR control loop into separate loops. The improved feedback delay and the control of ABR traffic inside closed segments provide a better performance for ABR connections. This article will present the use of classical linear control theory to model and develop an ABR VS/VD flow control algorithm. Discrete event simulations are used to analyze the behavior of the algorithm with respect to transient behavior and correctness of the control model. Linear control theory offers the means to derive correct choices of parameters and to assess performance issues, like stability of the system, during the design phase. The performance goals are a high link utilization, fair bandwidth distribution, and robust operation in various environments, which are verified by discrete event simulations. The major contribution of this work is the use of analytic methods (linear control theory) to model and design an ABR flow control algorithm tailored for the special layout of a VS/VD switch, and the use of simulation techniques to verify the result.

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Section: Effectivenessmentioning

confidence: 99%

Modeling and Simulation of an ABR Flow Control Algorithm Using a Virtual Source/Virtual Destination Switch

Cseh

2002

SIMULATION

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“…For the optical Internet to be truly ubiquitous, one must address, among other important issues, how the WDM layer supports differentiated service. There are many mechanisms to implement connectionless QoS in the literature [3]- [5], mostly using buffers and scheduling. These approaches, however, incur high processing overhead at intermediate nodes and mandate a certain amount of buffers for switching.…”

Section: Introductionmentioning

confidence: 99%

Providing Service Differentiation for Optical-Burst-Switched Networks

Liao

Loi

2004

J. Lightwave Technol.

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This paper proposes a service differentiation scheme called preemptive wavelength reservation protocol (PWRP) to provide proportional quality of service (QoS) for optical-burst-switched (OBS) networks. In the context of service differentiation, traffic is divided into different service classes based on traffic characteristics. A service differentiation scheme then provides different degrees of resource assurance to different classes of traffic in proportion to their service classes. Unlike existing approaches, which may degrade to classless schemes or which may suffer from low wavelength utilization, the mechanism in this paper is robust and efficient and supports an incremental deployment of QoS support. A usage profile for each class is maintained at the router, and a preemptive wavelength reservation mechanism is implemented to ensure QoS. An analytical model is derived and simulations are conducted to evaluate the performance. The results show that the approach described in this paper performs better than existing mechanisms in terms of lower blocking probability and higher resource utilization, making it an excellent QoS mechanism for OBS networks.

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A Taxonomy of Switching Techniques

Qiao

Yoo

The International Series in Engineering and Computer Science

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Traffic management for an ATM switch with per-VC queuing: concept and implementation

Cited by 19 publications

References 6 publications

Modeling and Simulation of an ABR Flow Control Algorithm Using a Virtual Source/Virtual Destination Switch

Modeling and Simulation of an ABR Flow Control Algorithm Using a Virtual Source/Virtual Destination Switch

Providing Service Differentiation for Optical-Burst-Switched Networks

A Taxonomy of Switching Techniques

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