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The Practical OPNET User Guide for Computer Network Simulation
book

The Practical OPNET User Guide for Computer Network Simulation

by Adarshpal S. Sethi, Vasil Y. Hnatyshin
August 2012
Beginner content levelBeginner
527 pages
15h 51m
English
Chapman and Hall/CRC
Content preview from The Practical OPNET User Guide for Computer Network Simulation
306 The Practical OPNET User Guide for Computer Network Simulation
average queue occupancy exceeds the maximum threshold, max
th
, then RED marks
all arriving packets. Marked packets typically have their ECN eld (i.e., two right-
most bits of the ToS byte in the IP header) set to the Congestion Encountered (CE)
value, which noties network edges about congestion in the network. Alternative
RED implementations discard packets instead of marking them, which also effec-
tively serves as a notication to TCP sources about congestion in the network. RED
estimates the average queue occupancy using the exponentially weighted moving
average (EWMA) algorith ...
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Publisher Resources

ISBN: 9781439812068