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Study guide - Lecture 6 Short answer Explain and...

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Lecture 6 Short answer Explain and distinguish between a network bridge and a router. A bridge is a device that connects and passes packets between two network segments that use the same communications protocol. Bridges operate at the data link layer (layer 2) of the OSI reference model. A bridge will filter, forward or flood an incoming frame based on the MAC address of that frame. A router is an intelligent connecting device that can send packets to the correct LAN segment to take them to their destination. Routers link LAN segments at the network layer of the OSI Reference Model for computer to computer communications. The networks connected by routers can use similar or different networking protocols. The most popular interior routing protocol is OSPF and the most popular exterior routing protocol is BGP. Bonus Difference between a router and a switch A router is a more sophisticated network device than either a switch or a hub. Traditional routers are designed to join multiple area networks. In home networking, hubs and switches technically exist only for wired networks. On the Internet or on a large corporate network, for example, routers serve as intermediate destinations for network traffic. These routers receive TCP/IP packets, look inside each packet to identify the source and target IP addresses, and then forward these packets as needed to ensure the data reaches its final destination. A network switch is a small hardware device that joins multiple computers together within one local area network (LAN). Technically, network switches operate at layer two (Data Link Layer) of the OSI model. Lecture 5
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Study guide - Lecture 6 Short answer Explain and...

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