A Study to Guarantee Minimum Bandwidth to TCP Trafic over ATM-GFR Service 


Vol. 27,  No. 4, pp. 308-315, Apr.  2002


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  Abstract

Guaranteed frame rate (GFR) service has been defined to provide minimum cell rate (MCR) guarantees for virtual connections (VCs) carrying Internet traffic in ATM networks and allow them to fairly share residual bandwidth. The simplest switch implementation mechanism to support the GFR service in ATM networks consists of the frame-based generic cell rate algorithm (F-GCRA) frame classifier and the early packet discard (EPD)-like buffer acceptance algorithm in a single FIFO buffer. This mechanism is simple, but has failed to guarantee the same bandwidth as an MCR to a VC that has reserved a relatively large MCR. This paper applies the packet spacing scheme to TCP traffic to alleviate its burstness, so as to guarantee a larger MCR to a VC. In addition, the random early detection (RED) scheme is added to the buffer acceptance algorithm in order to improve fairness in use of residual bandwidth. Simulation results show that the applied two schemes improve a quality of service (QoS) in the GFR service for the TCP traffic.

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  Cite this article

[IEEE Style]

I. Park, "A Study to Guarantee Minimum Bandwidth to TCP Trafic over ATM-GFR Service," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 4, pp. 308-315, 2002. DOI: .

[ACM Style]

Inyong Park. 2002. A Study to Guarantee Minimum Bandwidth to TCP Trafic over ATM-GFR Service. The Journal of Korean Institute of Communications and Information Sciences, 27, 4, (2002), 308-315. DOI: .

[KICS Style]

Inyong Park, "A Study to Guarantee Minimum Bandwidth to TCP Trafic over ATM-GFR Service," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 4, pp. 308-315, 4. 2002.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880