Customer-based IP Service Monitoring with Mobile Software Agents

1 Introduction.- 1.1 Overall Scenario.- 1.2 Advanced IP Network Services.- 1.2.1 Internet-based Virtual Private Network (VPN).- 1.2.2 The Security Architecture for the Internet Protocol.- 1.2.3 Differentiated Services (DiffServ).- 1.3 Agent Technology.- 1.4 Network and Service Management.- 1.5 The Problem and the Proposed Approach.- 1.6 Outline of the Book.- 2 A Service Monitoring Architecture.- 2.1 Introduction and Motivation.- 2.2 Mobility and Service Monitoring.- 2.2.1 Terminology.- 2.2.2 Advantages of Service Monitoring with Mobile Agents.- 2.3 The Basic Infrastructure.- 2.3.1 Location of the Control Points.- 2.3.2 Node Architecture.- 2.3.3 Authorization and Filtering.- 2.3.4 Security Issues.- 2.4 Mobility Models and Agent Forwarding.- 2.4.1 Supported Mobility Models.- 2.4.2 Forwarding Security.- 2.5 Internet Deployment.- 2.5.1 Advanced Infrastructure Support.- 3 Implementation of CSM.- 3.1 The CSM Protocol.- 3.1.1 Overview.- 3.1.2 Internet Communication with Java.- 3.1.3 Layering of the CSM Protocol.- 3.1.4 The Protocol Object.- 3.1.5 Message Objects.- 3.1.6 CSM Message Exchange Sequences.- 3.2 The T-Component and the Raw Packet Protocol.- 3.2.1 T-Component Implementations.- 3.2.2 The Interaction between the Node and the T-component.- 3.2.3 Other Options for T-components.- 3.3 The CSM Node.- 3.3.1 Node Overview.- 3.3.2 Welcome Procedure for an Agent.- 3.3.3 The Execution Environment.- 3.3.4 Node Services.- 3.3.5 User Profiles and Policies.- 3.4 Agent Interface.- 3.5 Security and Resource Control.- 3.5.1 Communication Protection.- 3.5.2 Security Layers of the Node.- 3.5.3 Resource Control.- 3.5.4 Agent Security.- 3.6 The Home Application.- 3.6.1 Implementation Overview.- 3.6.2 The Transmission of a Request to the Node.- 3.6.3 The Callback Displayer.- 3.6.4 Generic Views of the Agent Results.- 3.7 CSM Internetworking Support.- 3.7.1 Name and Topology Information.- 3.7.2 Routing.- 3.8 Organization of the Source Code.- 4 Applications of Service Monitoring Agents.- 4.1 Monitoring a Virtual Private Network Service.- 4.1.1 Functionality of a VPN Control Agent.- 4.1.2 Statistical Tests on Cryptographic Algorithms.- 4.2 Service Level Agreement Monitoring.- 4.3 Agents for Measuring QoS Parameters.- 4.3.1 Throughput Measurements.- 4.3.2 Coordination of Distributed Measurements.- 4.3.3 One-Way Delay Measurements.- 4.3.4 The Ping Measurements.- 4.4 Agent Security.- 4.4.1 Classification of Attacks.- 4.4.2 The Semantics of the Agent.- 4.4.3 Attacks on the Input of the Agent.- 4.4.4 Evaluation of the Threat Situation.- 4.5 Extended Application Scenarios.- 4.5.1 Further Applications Independent of New Node Services.- 4.5.2 Future CSM Extensions.- 5 Performance Evaluation.- 5.1 Performance of the Node Environment.- 5.1.1 Throughput of the Execution Environment.- 5.1.2 Node Throughput Including the TCP Receiver.- 5.2 Agent Performance.- 5.3 Communication Performance of the CSM System.- 5.4 The T-Component.- 5.5 Discussion and Improvements.- 6 Comparison with Related Work.- 6.1 The Internet2 Initiative and the QBone.- 6.1.1 The QBone.- 6.1.2 QBone Measurements.- 6.1.3 Comparison to our Approach.- 6.2 Network Measurements and Monitoring.- 6.2.1 IP Measurement Methodology.- 6.2.2 The Simple Network Management Architecture.- 6.2.3 Measurement Testbeds.- 6.3 Mobile Agents for Management and Monitoring.- 6.3.1 Network Management with Mobile Agents.- 6.3.2 The Script MIB.- 6.3.3 Network Management with Active Networks.- 6.4 Open Issues.- 6.4.1 Collaboration of Monitoring Agents.- 6.4.2 Routing.- 6.4.3 Artificial Intelligence.- 7 Summary and Conclusion.- List of Figures.- List of Tables.- List of Abbreviations.