Performance Evaluation of a Connectionless Multicast Service
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Abstract The implementation of connectionless multicast service over ATM requires the presence of devices operating in a connectionless mode. In this paper, we identify a Connectionless Server able to interwork with private connectionless network and to support a multicast service which makes the ATM network fully transparent. A detailed description of the Connectionless Server operations and model is presented with relations to the standardization work in progress in ITU-T. The Connectionless Server performance in term of frame loss and delay is evaluated as a function of buffer size. Moreover, an output buffer Discard algorithm is proposed to cope with the multicast traffic and “tail dropping” phenomenon. The impact of the algorithm on CLS performance is evaluated in a simple reference configuration.
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