December 2001
Intermediate to advanced
656 pages
27h 19m
English
Content preview from Networking Explained, 2nd Edition
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208 Networking Explained, Second Edition
59. Okay. In the chapter opener, you mentioned something about data prioritization
and quality of service. Please explain what you mean by these terms?
Data prioritization involves assigning a priority level to data frames, and quality of
service (QoS) involves establishing certain parameters for a specific transmission. Both
data prioritization and QoS are required to deliver real-time voice and video traffic. Note
that tagging data with a priority level is also called class of service, or CoS.
60. How is this accomplished?
Let’s examine these two concepts from the perspective of Ethernet/802.3, which is dis- ...
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