Performance of TCP over ATM with time-varying available bandwidth
Computer Communications
Block loss reduction in ATM networks
Computer Communications
Research: Modelling frame losses in a two-hop ATM network
Computer Communications
The issue of useless packet transmission for multimedia over the Internet
Computer Communications
Performance of TCP over UBR in ATM with EPD and virtual queuing techniques
Computer Communications
Research: Comparison of MPEG data transferring schemes in ATM networks
Computer Communications
Balanced packet discard for improving TCP performance in ATM networks
Computer Communications
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Asynchronous transfer mode (ATM) is a packet switched data transport system based on short, fixed length cells. Each cell carries a virtual channel indicator (VCI) and virtual path indicator (VPI) in its header. Essential to the services offered by the ATM networks is the ATM adaptation layer (AAL), an ITU-TSS defined layer that adapts the cell-based ATM physical layer to packet, datagram, or bit-stream-oriented higher layers. Failure modes causing cell loss along a virtual connection are examined, and the ways AALs cope are analyzed. The sources of cell loss and their effects on AAL3/4 or AAL5 type of service are described. The usefulness of the ability of AAL3/4 to pass fragments of corrupted data up to higher layer protocols is discussed, and the implementation of selective cell discarding within switching nodes is considered, and the limitations imposed by each AAL are examined