In nature evolution occurs throughout various different things. Also evolution occurs in technology. Take for instance, ATM was an evolution of frame relay, and frame relay was an evolution of packet switching. Evolution happens everywhere but in technology it happens all the time.
Packet switching technology breaks down messages into fixed-length pieces called packets and sent through a network individually. In packet switching messages are segmented into packets of a pre determined size before they are sent. This process is called packetizing. The packets are normally 1000 bytes long. There is a lot of error protection in the packet. Packet switching networks are made to run several alternative high-speed paths from one node to another. For instance if a node from San Francisco is trying to send a message to Los Angeles and the connection is busy or down, it will redirect its m
However frame relay is not top dog in data transfers. Another form of transferring has evolved from frame relay, which is ATM (Asynchronous transfer mode). It is also known as cell relay. This form was created to solve the problem of delays in the transferring. It gets really annoying when you watch a video and it keeps on skipping or stopping every few seconds. That is an idea of a delay in data transferring. Its cells use fixed packets of 53 bytes. Theses cells can also be built and broken down like frame relay, but in a faster time. All forms of data, like voice, video, and data, can be sent through a single ATM line, at the same time (like a T3 line). A large amount of bandwidth is required to use ATM. However frame relay may be the more efficient way to go. Do to the fact that it cost more for ATM lines that it does for frame relay.
essage to Denver then to Los Angeles as an alternative rout
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