![]() ![]() ![]() This is especially important for computer communications, since data traffic tends to be rather unpredictable and bursty prereserving resources would lead to low utilization levels, whereas the statistical multiplexing of packet switching allows one to achieve much higher utilization levels. ![]() The advantage of packet switching is that it allows the network resources (bandwidth, buffers) to be statistically shared among all sources. In most packet-switched networks,(1) sources send their data packets into the network without any prereserved resources, and the network exerts its "best effort" to service the packets. Packet switching introduced a very different mode of communication. In such networks, each circuit is allocated resources along a path for its exclusive use there is no uncertainty about the bandwidth or delays along the path. The first generation of telecommunication networks were circuit-switched. While the work done in this area has proven to be of great value, we need to recognize as a community that this paradigm is clearly inappropriate for future public networks.īryan Lyles and Scott Shenker, Xerox Palo Alto Research Center The current congestion control paradigm assumes that end users will use a single mandated algorithm. January/February 1996, Volume 10, Number 1Ĭongestion Control for Best-Effort Service: Congestion Control for Best-Effort Service ![]()
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