Monitoring of multicast networks for time synchronous communication: = Überwachung von Multicast-Netzwerken für zeitsynchrone Kommunikation
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | German English |
| Veröffentlicht: |
Erlangen
Inst. für Informatik
2003
|
| Schriftenreihe: | Arbeitsberichte des Instituts für Informatik, Friedrich-Alexander-Universität Erlangen-Nürnberg
36,4 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | Zugl.: Erlangen-Nürnberg, Univ., Diss., 2003. - Text engl., Kurzfassung dt. |
| Beschreibung: | XII, 240 S. Ill., graph. Darst. |
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| 246 | 1 | 1 | |a Überwachung von Multicast-Netzwerken für zeitsynchrone Kommunikation |
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Datensatz im Suchindex
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Table of Contents vii
Table of Contents
Abstract v
Table of Contents vii
1 Introduction 1
2 Multicast Infrastructure 5
2.1 Multicast Routing Protocols and Strategies 5
2.1.1 Group Management 5
2.1.1.1 Internet Group Management Protocol (IGMP) 5
2.1.1.2 Multicast Addressing 8
2.1.2 Intra Domain Multicast Routing 9
2.1.2.1 Dense Mode Protocols 10
2.1.2.1.1 Distance Vector Multicast Routing Protocol (DVMRP). 10
2.1.2.1.2 PIM Dense Mode 12
2.1.2.2 Sparse Mode Protocols 14
2.1.2.2.1 PIM Sparse Mode 14
2.1.2.2.2 Source Specific Multicast (SSM) 17
2.1.2.3 Explicit Multicast (Xcast) 17
2.1.3 Inter Domain Multicast Routing 17
2.2 Analysis of well known Multicast Networks 18
2.2.1 Global Multicast Routing in the Internet 18
2.2.2 German Research Network 20
2.2.3 Bavarian University Network 20
2.2.4 Campus Network of the University of Erlangen Nuremberg 21
2.3 Analysis of typical Multicast Services 22
2.3.1 Broadcasts 22
2.3.1.1 FAU TV 23
2.3.1.2 Uni TV 23
2.3.2 Conferences and distributed Applications 24
2.3.2.1 TKBRZL 24
2.3.2.2 MBone de 25
2.3.2.3 Network Time Protocol (NTP) 25
2.4 Analysis of well known Applications 25
2.4.1 Audio 25
2.4.2 Video 26
2.4.3 Collaboration and Session Management 26
3 Quality of Service in Multicast Networks 28
3.1 Real Time and QoS in Communication Networks 28
3.2 Quality of Service Parameters 29
3.2.1 Reachability and Reliability 30
vjji Table of Contents
3.2.2 Delay 31
3.2.2.1 One Way Delay (OWD) 31
3.2.2.2 Round Trip Time (RTT) 32
3.2.3 Jitter (Delay Variation) 32
3.2.4 Packet Loss Ratio 34
3.2.5 Ratio of reordered or duplicated packets 35
3.3 Real Time Transport Protocol (RTP) 36
3.4 Metrics forQoS Measurement 38
3.4.1 Framework for IP Performance Metrics 38
3.4.1.1 Functional Requirements 38
3.4.1.2 Packet Formats 38
3.4.1.3 Recommendations 39
3.4.2 Metrics for Measuring Connectivity 39
3.4.3 One Way Delay Metric 41
3.4.4 IP Delay Variation Metric 42
3.4.5 One Way Packet Loss Metric 44
3.4.6 Reordering Metric 45
3.5 QoS Measurement Tools for Multicast Networks 46
3.5.1 ping / traceroute 46
3.5.2 mrinfo 48
3.5.3 mtrace 49
3.5.4 MHealth 50
3.5.5 mlisten 51
3.5.6 Multicast Reachability Monitor (MRM) 53
3.5.7 Multicast Beacon 57
3.5.8 mmon 61
3.5.9 Summary 61
3.6 Providing QoS in IP Multicast Networks 61
3.6.1 Integrated Services 62
3.6.2 Differentiated Services 63
3.6.3 Layered Multicast Transmission 67
3.6.4 Reliable Multicast 68
4 QoS Requirements of IP Multicast Applications 69
4.1 Analysis of the Requirements of Applications 69
4.1.1 General Taxonomy of Multicast Applications 69
4.1.2 Bandwidth Requirements 70
4.1.3 Delay Tolerance 71
4.1.4 Loss Tolerance 72
4.1.5 Synchronization Requirements 73
4.2 Test Environment and Evaluation 74
4.2.1 Objective Tests 74
4.2.2 Subjective Tests 75
4.2.3 Real World Measurements 75
Table of Contents ix
4.2.4 Lab Tests using an Impairment Tool 76
4.2.4.1 Requirements for an IP Impairment Tool 76
4.2.4.2 Developing an IP Impairment Tool 78
4.2.4.3 Verification of the IP Impairment Tool 78
4.3 Measurement Results 82
4.3.1 Video Conferences 82
4.3.2 Voice over IP 83
5 Modeling IP Multicast Networks and Services 85
5.1 Motivation for the Model 85
5.2 Object Model 86
5.2.1 Modeling Multicast Networks 87
5.2.1.1 Link Layer 89
5.2.1.1.1 Object: Link 90
5.2.1.1.2 Object: Interface 91
5.2.1.1.3 Object: Node 92
5.2.1.2 Network Layer 92
5.2.1.2.1 Object: Link 92
5.2.1.2.2 Object: Interface 93
5.2.1.2.3 Object: Node 93
5.2.1.3 Application Layer 93
5.2.2 Modeling Multicast Services 94
5.2.2.1 Object: Service 94
5.2.2.2 Object: Service Part 94
5.2.2.3 Examples of Multicast Services 95
5.2.3 Routing Algorithms 96
5.2.3.1 Optimum Multicast Trees 97
5.2.3.2 MRT: Dijkstra Algorithm 97
5.2.3.3 Routing based on multiple QoS Parameters 99
5.2.4 Object Hierarchy 100
5.3 Usage of the Model 100
5.3.1 Analysis of aMulticast Network 101
5.3.2 Offline Simulation 103
5.3.3 Online Measurement 103
5.4 Implementation in JAVA 106
5.5 Summary 111
6 Definition of a Metric for Multicast Services 113
6.1 Parameters of the Metric 113
6.1.1 Classic Parameters 113
6.1.2 QoS related Parameters 114
6.1.3 Miscellaneous Parameters 115
6.2 Service Level Agreements 115
6.3 Calculation Methodology for Multicast Services 116
6.3.1 Weighting of single Metrics 116
x Table of Contents
6.3.2 Calculation of the End to End Quality 117
6.3.3 Methodology for Evaluating the Quality of a Multicast Service 117
6.4 Efficiency of Multicast 118
6.5 Examples for SLAs 119
6.5.1 Video Conference 120
6.5.2 TV Broadcast 120
7 Multicast Quality Monitor (MQM) 122
7.1 Working Principles 122
7.1.1 Basic Structure 122
7.1.2 Differentiation of Measurements 124
7.1.3 Beacon Mechanism 125
7.2 Reliability Measurements 126
7.2.1 Multicast Ping 126
7.2.2 Methodology 126
7.3 Quality of Service Measurements 129
7.3.1 One Way Delay, Round Trip Time 129
7.3.1.1 Methodology 130
7.3.1.2 Example 131
7.3.1.3 Error Analysis 132
7.3.2 Packet Loss Ratio, Ratio of Reordered and Duplicated Packets 132
7.3.2.1 Methodology 133
7.3.2.2 Analysis 134
7.3.2.3 Error Analysis 135
7.3.3 Jitter 135
7.3.3.1 Methodology 135
7.3.3.2 Analysis 135
7.3.3.3 Error Analysis 137
7.4 Processes and Inter Process Communication 137
7.4.1 MQM Processes 137
7.4.1.1 MQM Sender 137
7.4.1.2 MQM Receiver 138
7.4.1.3 RTP sender 140
7.4.1.4 RTP receiver 140
7.4.1.5 RTCP receiver 141
7.4.1.6 Monitor 141
7.4.1.7 Manager 141
7.4.1.7.1 Collection of Measurement Results 141
7.4.1.7.2 Beacon Messages 141
7.4.2 Inter Process Communication 143
7.5 Communication Protocols 144
7.5.1 MQM Header 144
7.5.2 MQM Ping Message 145
7.5.3 MQM Beacon Message 145
Table of Contents xi
7.6 Sample Measurements 147
7.6.1 MQM ping based Tests 147
7.6.2 RTP based Tests 152
7.7 Summary and Outlook 155
8 Summary 158
A RTP Definitions 161
A.I Basic Definitions 161
A.2 RTP Packet Format 162
A.3 RTCP Packet Format 164
B MRT (Multicast Routing Tool) 170
B.I Developing the MRT 170
B.2 Usage of the MRT 170
B.3 Import of Dynamic Data 175
C DNDF (Dummynet with Distribution Function) 177
C.I Configuring Dummynet 177
C.2 Configuring DNDF 177
C.3 Configuration used for the Examples 178
C.4 Measurement Results 180
D MQM (Multicast Quality Monitor) 187
D.I Analysis of MQM Ping Packets 187
D.2 Analysis of RTP Packets 190
Bibliography 193
List of Figures 209
List of Tables 214
Index 215
Acronyms 219
Inhaltsverzeichnis 225
Kurzfassung . .231
Einleitung 233
Zusammenfassung 237
Curriculum Vitae 241 |
| any_adam_object | 1 |
| author | Dressler, Falko 1971- |
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| discipline | Informatik |
| format | Thesis Book |
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| series | Arbeitsberichte des Instituts für Informatik, Friedrich-Alexander-Universität Erlangen-Nürnberg |
| series2 | Arbeitsberichte des Instituts für Informatik, Friedrich-Alexander-Universität Erlangen-Nürnberg |
| spelling | Dressler, Falko 1971- Verfasser (DE-588)128408723 aut Monitoring of multicast networks for time synchronous communication = Überwachung von Multicast-Netzwerken für zeitsynchrone Kommunikation von Falko Dreßler Überwachung von Multicast-Netzwerken für zeitsynchrone Kommunikation Erlangen Inst. für Informatik 2003 XII, 240 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Arbeitsberichte des Instituts für Informatik, Friedrich-Alexander-Universität Erlangen-Nürnberg 36,4 Zugl.: Erlangen-Nürnberg, Univ., Diss., 2003. - Text engl., Kurzfassung dt. Zugl.: Erlangen-Nürnberg, Univ., Diss. Datennetz (DE-588)4011130-1 gnd rswk-swf Multicastingverfahren (DE-588)4236381-0 gnd rswk-swf Netzwerkanalyse (DE-588)4075298-7 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Datennetz (DE-588)4011130-1 s Multicastingverfahren (DE-588)4236381-0 s Netzwerkanalyse (DE-588)4075298-7 s DE-604 Arbeitsberichte des Instituts für Informatik, Friedrich-Alexander-Universität Erlangen-Nürnberg 36,4 (DE-604)BV013391036 36,4 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=010434818&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Dressler, Falko 1971- Monitoring of multicast networks for time synchronous communication = Überwachung von Multicast-Netzwerken für zeitsynchrone Kommunikation Arbeitsberichte des Instituts für Informatik, Friedrich-Alexander-Universität Erlangen-Nürnberg Datennetz (DE-588)4011130-1 gnd Multicastingverfahren (DE-588)4236381-0 gnd Netzwerkanalyse (DE-588)4075298-7 gnd |
| subject_GND | (DE-588)4011130-1 (DE-588)4236381-0 (DE-588)4075298-7 (DE-588)4113937-9 |
| title | Monitoring of multicast networks for time synchronous communication = Überwachung von Multicast-Netzwerken für zeitsynchrone Kommunikation |
| title_alt | Überwachung von Multicast-Netzwerken für zeitsynchrone Kommunikation |
| title_auth | Monitoring of multicast networks for time synchronous communication = Überwachung von Multicast-Netzwerken für zeitsynchrone Kommunikation |
| title_exact_search | Monitoring of multicast networks for time synchronous communication = Überwachung von Multicast-Netzwerken für zeitsynchrone Kommunikation |
| title_full | Monitoring of multicast networks for time synchronous communication = Überwachung von Multicast-Netzwerken für zeitsynchrone Kommunikation von Falko Dreßler |
| title_fullStr | Monitoring of multicast networks for time synchronous communication = Überwachung von Multicast-Netzwerken für zeitsynchrone Kommunikation von Falko Dreßler |
| title_full_unstemmed | Monitoring of multicast networks for time synchronous communication = Überwachung von Multicast-Netzwerken für zeitsynchrone Kommunikation von Falko Dreßler |
| title_short | Monitoring of multicast networks for time synchronous communication |
| title_sort | monitoring of multicast networks for time synchronous communication uberwachung von multicast netzwerken fur zeitsynchrone kommunikation |
| title_sub | = Überwachung von Multicast-Netzwerken für zeitsynchrone Kommunikation |
| topic | Datennetz (DE-588)4011130-1 gnd Multicastingverfahren (DE-588)4236381-0 gnd Netzwerkanalyse (DE-588)4075298-7 gnd |
| topic_facet | Datennetz Multicastingverfahren Netzwerkanalyse Hochschulschrift |
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