Frame relay
Frame relay is a type of data transmission service that is designed to be cost effective.
It uses a packet-switching technique and Wide Area Networks (WANs) to achieve this
result.
The system also has flexibility, which comes from the Data Link Connection Identifier
(DLCI) number that each connection uses for identification. Any station can use this
number to connect to any other station in the network with only the DLCI number and
the address.
Frame relay is a wide area network tool that is able to identify the physical and the
logical layer of digital communication channel using packet switch method.
It is based on the X.25 packet switching technology that was designed for transmitting
analog data but frame relay is a fast packet technology that always dropped a frame
when an error is detected in a frame.
Frame relay puts data in a variable size unit called a frame and is used to connect
LANs with major backbones as well as on WAN and public network environment.
Frame relay was developed for taking the advantage of the high data rates and low
error rates in the modern communication system. It maintains a data rate at the user
end of about 2 Mbps.
Frame relay also is meant for more efficient transmission scheme than the X.25
protocol.
Frame relay layers:
Frame relay has only two layers, i.e physical layer and Data Link Layer
