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YouDecideWeek1 - Frame Relay is a high-performance WAN...

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Frame Relay is a high-performance WAN protocol that can provide digital internetwork WAN connections up to 2.048 Mbps (and sometimes higher) in many parts of the world. Frame relay uses virtual circuits to connect sites and provide scalability by the definition of guaranteed data pipes (using a committed information rate). Frame relay is so popular because its scalable bandwidth offerings across digital pathways. Using standard Frame Relay configurations is a simple way of minimizing connectivity problems in large Frame Relay networks . Frame relay was designed for digital transmission through a reliable medium, typically fiber optic, compared to X.25 that was originally designed for analog transmission through an unreliable medium such as standard telephone line. The following is the main feature of frame relay: 1. Frame relay provides error detection but not error recovery 2. Frame relay can provide data transfer up to 1.54Mbps 3. Frame relay have a variable packet size (called a frame) 4. Frame relay can be used as backbone connection to LANs 5. Frame relay can be implemented over a variety of connection lines (56K, T1, T3) 6. Frame relay operates at Physical and Data link layers of the OSI model When you sign up for a frame relay service, you are assigned a level of service called a Committed Information Rate (CIR). CIR is the maximum guaranteed data transmission rate you will receive on the frame relay network. When network traffic is low, you will likely be able to send data faster than the CIR. As network traffic increases, priority is given to the data coming
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