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Essay / The difference between Frame Relay and Point networks...
IntroductionThe purpose of this article is to take a detailed look at how one of the wide area networks we discussed in class works. This article discusses the difference between Frame Relay networks and other point-to-point networks, benefits, addressing schemes, and different supported protocols. The document will briefly explain virtual circuits before moving on to its other features, as they are key to understanding the concept of frame relay in general. Besides virtual circuits, we will see its addressing scheme, how frame relay guarantees bandwidth with its committed information rate and how to detect and avoid congestion. DiscussionFrame Relay is an implementation of wide area networking via packet switching. Frame relay offers more advantages than simple point-to-point wide area networks. It does not require a dedicated leased line unlike other point-to-point networks. Frame Relay networks allow more than two network devices to connect to the same network. Some of the reasons why Frame Relay is an effective way to implement wide area networks are the use of virtual circuits and having their own addressing scheme. Frame Relay has its own data link header and tail. They have their own protocol called Data Link Connection Identifier (DLCI). Frame Relay networks relay access links which are virtual circuits. The difference between Frame Relay networks and point-to-point networks is that in point-to-point, the leased line travels from one location to another. Each location will require its own router. In Frame Relay, the leased line connects routers to special Frame Relay switches. Frame relay is considered a packet-switched network because all frames are sent over different hops by the service...... middle of paper ...... e their service provider gives them the right to 'drop "unimportant" packets if they use the network too much and there is congestion because of them. Service providers do this in order to meet the needs of other customers who are in demand on the network and have not exceeded their committed information rate (CIR bandwidth). To satisfy all its clients, the service provider will only discard frames whose DE bit is set to 1. This means that the client indicates that the packet is not important. Service providers will do their best to pass through frameworks considered “important” by the customer. Works Cited “Cisco Support Community”. Difference between DTE and DCE devices. Np, and Web. March 30, 2014. Odom, Wendell. Official certification guide for the CCNA ICND2 exam. Indianapolis, IN: Cisco, 2008. Print.