Frame Relay In Computer Networks Ppt

Frame relay has variable packet size.

Frame relay in computer networks ppt.

Framing is a point to point connection between two computers or devices consists of a wire in which data is transmitted as a stream of bits. It operates at two layers. Frame relay is a service that is provided with a variety of speeds from 56 kbs up to 25 mbs. Frame relay is the property of its rightful owner.

Raj jain professor of computer and information sciences the ohio state university columbus oh. Framing is a function of the data link layer. It doesn t give error management and flow management. It is mostly implemented at the data link layer.

Frame relay is a connectionless service meaning that each data packet passing through the network contains address information. Thus by streamlining the communications process lower delay and higher throughput is achieved. Ethernet token ring frame relay and other data link layer technologies have their own frame structures. Lmi option is used to exchange management messages between router and frame relay switch while dlci number is used to identify the other end of vc.

It provides the information speed from sixty four kbps to forty five mbps. The powerpoint ppt presentation. Frame relay is a packet switched communication service from lans local area network to backbone networks and wans. Framing is a function of the data link layer.

Frame relay provides us lmi options and dlci numbers. Even though the most used speeds for the service are currently 56 kbs and 1 544 mbs. However these bits must be framed into discernible blocks of information. Frame relay network to network svc implementation agreement frf 10 september 1996.

It provides a way for a sender to transmit a set of bits that are meaningful to the receiver. F rame relay is a wan protocol that operates at the physical layer and data link layer of the osi reference model. Frames have headers that contain information such as error checking codes. In our example vc that has dlci number 100 is connected with r2 and vc with dlci number 101 is connected with r3.

Li ul ul li frame relay puts data in variable size units called frames and leaves any necessary error correction such as re transmission of data up to the end points. Li ul ul li this speeds up overall data transmission. The main purpose of designing the frame relay was to use this technology across. Frame relay is a packet mode transmission service that exploits characteristics of modern networks by minimizing the amount of error detection and recovery performed inside the network.

Physical layer and data link layer. It supports all standard physical layer protocols.