No matter if it’s called Carrier Ethernet, Metro-Ethernet, or Business Ethernet the premise is pretty a great deal the similar. While 100-megabit Ethernet and other higher-speed networks can offer comparable bandwidth, only ATM can supply the QoS guarantees needed for true-time telephony, VCR-high quality video streaming, CD-quality sound, smooth videoconferencing, and other delay-sensitive voice and video applications.
In the instance (from Asynchronous Transfer Mode Techonology by Martin de Prycker), we see that a virtual path is established among nodes A and C. Two cells, with a VCI of three and 4 and each obtaining a VPI of 9 are routed at node A to the path leading to node C, purely by virtue of their VPI.
ATM is struggling to adapt, nonetheless, to the speed and targeted traffic-shaping specifications of convergent network technologies, specifically with respect to the complexity connected with Segmentation and Reassembly (SAR), which is the supply of … Read the rest >>>>

As a technologies ATM has been about for a lot of years with the very first requirements having been with us for effectively in excess of 20 years. Unlike Ethernet networks, ATM has no inherent speed limit, and its efficiency is not affected by the distance that the information has to travel. Cell Transfer Delay – the total quantity of time that elapses from the time the initial bit is transmitted by the supply end method and the time the last bit is received by the destination finish program.