Notes on Wired Ethernet - Wired Ethernet Topology Shared...

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Wired Ethernet Topology Shared Ethernet’s Logical Topology Viewed logically as a bus topology All messages from any computer flow onto the central cable (bus) A computer receive messages from all other computers, whether the message is intended for it or not When a frame is received by a computer, the first task is to read the frame’s destination address to see if the message is meant for it or not Shared Ethernet’s Physical Topology Multiple Hub Ethernet Design Switched Ethernet Topology Uses workgroup switches Designed to support a small set of computers (16 to 24) in one LAN Looks similar to a hub, but very different inside
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Unformatted text preview: – Designed to support a group of point-to-point circuits • No sharing of circuits • Logical and physical topology of the network becomes a star topology via switch • Switch reads destination address of the frame and only sends it to the corresponding port – While a hub broadcasts frames to all ports • Forwarding Tables • Similar to routing tables • Lists the Ethernet address of computers connected to each port • When a frame is received, the switch reads its Layer 2 data link layer destination address and sends the frame out of the corresponding port in its forwarding table....
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  • Spring '13
  • Maanu
  • physical topology, logical topology, destination address, shared Ethernet, Multiple Hub Ethernet

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