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Performance of TCP/IP over ATM over an ADSL
Ryoichi KAWAHARA Hiroshi SAITO
IEICE TRANSACTIONS on Communications
Publication Date: 2000/02/25
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (IEICE/IEEE Joint Special Issue on Recent Progress in ATM Technologies)
ADSL, ATM, TCP, bandwidth variations, ABR, ABR switch algorithm, GFC,
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The performance of TCP/IP over ATM over an asymmetric digital subscriber line (ADSL) was investigated. Because the bandwidth of an ADSL link can vary over time due to changes in the link's physical conditions, which degrades TCP performance, we performed simulations for various ATM traffic controls, including available bit rate (ABR) and generic flow control, used to handle variations in the ADSL bandwidth. This analysis showed that using an ABR control is effective under various traffic conditions. An ABR switch algorithm that can achieve good performance under any condition was investigated.