Table of Contents
Aggregate Traffic Performance with Active Queue Management and Drop from Tail
Active Queue Management
Original RED
Revised RED
Gentle RED
Experiments
Traffic characteristics
Testbed (CISCO routers)
Testbed (Dummynet)
What is Dummynet?
Metrics observed
Aggregate goodput (long-lived TCP)
256 short and long lived TCP connections
Consecutive packet losses (long lived)
…if we use “optimal” RED parameters
Consecutive packet losses (realistic traffic mix)
Queuing behavior (256 long lived connections)
Queuing behavior (256 connections, realistic mix)
In summary ...
From the ISP standpoint ...
GRED-I with exponential dropping function
About Fair Queuing ...
Number of flows on an OC-3 link
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Author: Kevin C. Ebel
Email: nnn
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