Contents

• Contents
• List of Figures
• List of Tables
• Introduction
  • The Need for Traffic Analysis
    • Traffic Analysis and Network Monitoring
    • Planning of Infrastructural Development
    • Traffic Measurement and Accounting
    • Scaling Internet Technologies to Higher Speeds
  • Web Based Management
    • Traffic Graphing with ``mrtg''
    • Network Management with ``IntraSpection''
    • Web Based Enterprise Management
• Flows
  • Flow Definitions
    • Historical Definitions of Flows
      • The Packet Train Model
      • Defining Flows based on TCP Connections
    • Motiviation For a New Flow Definition
  • A Flow Model that is Suitable for the Internet
  • Flow Specifications
    • What are Flow Specifications?
    • Flow Directionality
    • One vs. Two Endpoint Aggregations of Traffic
    • Types of Flow Endpoints
  • The Flow Timeout Parameter
  • Flows and Protocols
    • The IPng Flow Label
    • Ipsilon Tagged Flows
• Existing Flow-based Measurement and Analysis Applications
  • Cisco: NetFlow Data Export
  • The IETF RTFM Working Group
    • The RTFM Architecture
    • IETF Example Applications: NeTraMet, NeMaC and Nifty
      • The NeTraMet Meter
      • The Manager/Collector ``NeMaC''
      • The Traffic Flow Analyzer ``nifty''
      • Nifty plots
  • The NLANR OC3MON
    • OC3MON System Overview
    • The OC3MON Software
      • Background on ATM
      • AAL5 Frame Reassembly using VPI, VCI and the PTI fields of the ATM Header
      • Software-Description
      • Usage
      • Is OC3MON really fast enough for 150 Mbits/s?
    • Flow Definition the OC3MON uses
    • Flow Specification Criteria with the OC3MON
  • OC3MON with NeTraMet Statistics Module
  • Feature Overview
• Writing Web-based Management Programs
  • The Simple Network Management Protcol (SNMP)
    • Architecture
    • Alarm Messages (Traps)
    • SNMP Proxy Agents for the management of non-SNMP devices
  • Programming for the WWW
  • Writing Network-Management Applications for the World Wide Web
  • Java
    • Introduction to Java
      • Java Applets vs. Java Applications
    • The Java Security Concept
  • Technical Overview over the AdventNet SNMPv2 Java class libraries
    • SNMP Variable classes
    • SNMP Communication classes
      • The SASClient class for access to the SNMP Applet Server (SAS)
    • SNMP MIB related classes
    • Miscellaneous classes
• A Java Applet that works with NeTraMet Meters
  • Design of the Applet
    • The Environment
    • The Architecture of the Applet
    • Organization of the Java Code
  • Installation and Usage
    • Preparation of the Web Server
    • Starting the NeTraMet meter
    • Uploading Rulesets with a manager application
    • Using the Applet
    • Getting more detailed Information
  • Further Work
• Conclusions
• Ruleset file for ``fluid''
• Overview over the Flow MIB
• References