| The Atropos tutorial is designed to allow programmers
to become quickly familiar with the Atropos architecture and to be
able to modify the code for other applications. The tutorial builds executable
applications starting from the simplest and progresses step-by-step to
a fully predictive system. Note that Atropos is an extension of AVNMP and
AVNMP may still appear in some of the older figures and text.
The tutorial builds a simple Active Application to generate load in
Chapter 4, called LoadGen. This is the actual system whose load will be
predicted using Atropos. In Chapters 5 and 6 the SNMP instrumentation is
explained because the SNMP MIB serves as the predicted state repository
and the connection between the active application (LoadGen) and the Atropos
predictive models. Chapters 7 and 8 explain the in-network Atropos predictive
model development. Configuration parameters are discussed in Chapter
9.
The tutorial consists of the following chapters:
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Chapter 1 -- Overview
of Atropos
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This chapter provides a very brief overview of the Active Network concept
and an introduction to the Atropos architecture.
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Chapter 2 -- Atropos Installation
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This chapter provides the details necessary to install and run Atropos
as well as detailed programmatic and dependency information.
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Chapter 3 -- Building
Applications in Magician
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Atropos is currently implemented in the Magician execution environment.
This chapter provides a basic understanding of programming active packets
in Magician.
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Chapter 4 --
Building the Application Using LoadGen as an Example Application
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In this chapter, a simple application is developed. This application serves
to generate active packets, providing load on an active link. This application
is extended in the following chapters to be enhanced with Atropos.
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Chapter 5 -- Instrumenting the Application
with SNMP
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Atropos is designed to provide predictive system management. This chapter
explains how the application is instrumented with SNMP.
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Chapter 6 -- Connecting the Application
to Atropos
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Once the application is instrumented with SNMP, the Atropos system needs
to know how to access the required management object ids.
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Chapter 7 -- Atropos Driving
Process Parameters
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This chapter explains the Atropos Driving Process, its parameter settings,
and how it interacts with the managed application.
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Chapter 8 -- Atropos Logical
Process parameters
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This chapter explains the Atropos Logical Process, its related parameters,
and how it interacts with the managed application.
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Chapter 9 -- Running the
Complete System
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Now that the entire system has been built, this chapter discusses issues
related to running the system and the predicted values.
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Chapter 10 -- Monitoring the
Results
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This chapter discusses collecting the data while the system is running.
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