June 2003
Intermediate to advanced
432 pages
15h 56m
English
book
Cisco Catalyst QoS: Quality of Service in Campus Networks
by Mike Flannagan - CCIE® No. 7651, Richard Froom - CCIE No. 5102, Kevin Turek - CCIE No. 7284
Content preview from Cisco Catalyst QoS: Quality of Service in Campus Networks
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Congestion Avoidance 35
dividing up the available bandwidth, CBWFQ did not give any specific regard to the delay
or jitter being introduced by queuing packets.
The LLQ mechanism is CBWFQ with a single PQ, which receives strict scheduling
priority. To go back to airline analogies, this is the equivalent of preboarding courtesies that
are often offered to persons with special needs or those traveling with small children. In
spite of the fact that these people may not be in first class, or elite frequent fliers, they are
moved directly to the front of the line and put on the plane first because they have special
needs. In the case of VoIP traffic, it ...
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