Why would you use subinterfaces with Frame Relay?

Frame Relay provides a mechanism to allow a physical interface to be partitioned into multiple virtual interfaces. In a similar way, using subinterfaces allows a partially meshed network to be divided into a number of smaller, fully meshed point-to-point networks.

What is frame to point relay?

On Frame Relay networks, a single VC is always provisioned for a point-to-point connection. The same VC originates at a local end and then terminates at the remote end. A subnet address is usually assigned to each point-to-point connection.

Is Frame Relay used?

Frame relay is often used to connect LANs with major backbones as well as on public wide area networks and also in private network environments with leased T-1 lines. It requires a dedicated connection during the transmission period and is not ideal for voice or video, which require a steady flow of transmissions.

Is Frame Relay Layer 2 or 3?

A Frame Relay frame is defined as a variable-length unit of data, in frame-relay format, that is transmitted through a Frame Relay network as pure data. Frames are found at Layer 2 of the OSI model, whereas packets are found at Layer 3.

What is Frame Relay interface DLCI?

A data link connection identifier (DLCI) is a Frame Relay 10-bit-wide link-local virtual circuit identifier used to assign frames to a specific PVC or SVC. Frame Relay networks use DLCIs to statistically multiplex frames. DLCIs are preloaded into each switch and act as road signs to the traveling frames.

What is Relay Point?

a a combination of a receiver and transmitter designed to receive radio signals and retransmit them, in order to extend their range.

What is frame relay in data communication?

Frame relay is a protocol that defines how frames are routed through a fast-packet network based on the address field in the frame. Frame relay takes advantage of the reliability of data communications networks to minimize the error checking done by the network nodes.

What are the advantages of frame relay?

➨It allows frame size of 9000 bytes which is enough for all the LAN frame types. ➨It is less expensive compare to traditional WAN networks. ➨It offers guaranteed throughput and delay. ➨It provides secured connection as it is difficult to break into PVCs between the sites.