IST 233 Chapter Notes - Chapter 5: Ieee 802.1, Ethernet Physical Layer, Data Link Layer
25 Feb 2014
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Document Summary
Ethernet is the way that wired lans work today, wires not radio. Wans operate outside of customer premises, connect different sites within an organization or transmit data between organizations. Switches that connect hosts to the network are called workgroup switches. Switches that connect switches to other switches are core switches. To connect all of these there is a transmission link, utp copper wire and optical fiber, one carries electrical signals the other carries light signals through very thin glass tubes. Transmission links that connect hosts to workgroup switches are called access links transmission links that connect switches to ther switches are trunk links. Switches hosts to networks- workgroup switches- access links __ switches to switches- core switches- trunk links are the transmission lines. Switches in the network core must carry the frames of many conversations they they must have high processing speeds wich is more 19564 Workgroup only carry the conversation from hosts they serve directly, low costs.
