Asynchronous Transfer Mode (ATM) Network Asynchronous Transfer Mode (ATM) will be the top product of networking technology for years to come. Since the creation of the network (ARPAnet (Advanced Research Project Agency Network)), scientists and engineers have strived to achieve the fastest information exchange speed with the most cost-effective hardware and software. Their products and ideas are always based on grouping technology and turn based transfer, but in the 1980's experimental system called ATM challenged these axioms.
The concept of broadband ISDN (B ISDN) is the implementation of the proposed integrated broadband communication network. The transmission mode for implementing B ISDN defined and accepted by ITU T is Asynchronous Transfer Mode (ATM). It has been widely accepted that a single network capable of supporting all necessary communication services is at the center of the current communication evolution movement. Regardless of "end system" and type of information, ATM requires world standards to enable information interoperability. For ATM, the goal is international standard. The industry accepts an unprecedented level of technology and standardization process. Through ATM, we see "emerging technologies" driven by international consensus, not the viewpoints and strategies of a single supplier.
Asynchronous transfer mode (ATM) is a telecommunications network switching technology. Use Asynchronous Time Division Multiplexing to encode data into small fixed size units. This differs from other protocols that use variable size packets or frames, such as the Internet Protocol Suite and Ethernet. ATM has similarities to lines and packet-switched networks. This makes it ideal for traditional high-throughput data traffic and networks that need to handle real-time, low latency content such as voice and video. The ATM uses a connection-oriented model in which virtual circuits must be established between the two endpoints before the actual data exchange begins.
ATM is a switching-based technology - it is a cell switching and multiplexing technology designed to be a fast universal transmission mode for various services. ATM is "asynchronous" because cells are not sent periodically, rather "time slots" are provided on request. There are several advantages to providing connectivity via a switch (not a shared bus). Each connection has its own bandwidth, a higher total bandwidth available, a clear connection process, and a flexible access speed.