The Case for Reliable Concurrent Multicasting Using Shared Ack Trees PDF Download
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Author:
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ISBN:
Category :
Languages : en
Pages : 13
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Book Description
Such interactive, distributed multimedia applications as shared whiteboards, group editors, and simulations require reliable concurrent multicast services, i.e., the reliable dissemination of information from multiple sources to all the members of a group. Furthermore, it makes sense to offer that service on top of the increasingly available IP multicast service, which offers unreliable multicasting. This paper establishes that concurrent reliable multicasting over the Internet should be based on reliable multicast protocols based on a shared acknowledgment tree. First, we show that organizing the receivers of a reliable multicast group into an acknowledgment tree and using NAK-avoidance with periodic polling in local groups inside such a tree provides the highest maximum throughput among all classes of reliable multicast protocols proposed to date. Second, we introduce Lorax, which demonstrates the viability of implementing a reliable multicasting approach in the Internet based on acknowledgment trees in a scalable manner. Lorax is the first known protocol that constructs and maintains a single acknowledgment tree for reliable concurrent multicasting, eliminates the need to maintain an acknowledgment tree for each source of a reliable multicast group, and can be used in combination with any of several tree-based reliable multicast protocols proposed to date.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 13
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Book Description
Such interactive, distributed multimedia applications as shared whiteboards, group editors, and simulations require reliable concurrent multicast services, i.e., the reliable dissemination of information from multiple sources to all the members of a group. Furthermore, it makes sense to offer that service on top of the increasingly available IP multicast service, which offers unreliable multicasting. This paper establishes that concurrent reliable multicasting over the Internet should be based on reliable multicast protocols based on a shared acknowledgment tree. First, we show that organizing the receivers of a reliable multicast group into an acknowledgment tree and using NAK-avoidance with periodic polling in local groups inside such a tree provides the highest maximum throughput among all classes of reliable multicast protocols proposed to date. Second, we introduce Lorax, which demonstrates the viability of implementing a reliable multicasting approach in the Internet based on acknowledgment trees in a scalable manner. Lorax is the first known protocol that constructs and maintains a single acknowledgment tree for reliable concurrent multicasting, eliminates the need to maintain an acknowledgment tree for each source of a reliable multicast group, and can be used in combination with any of several tree-based reliable multicast protocols proposed to date.
Author: Sanjoy Paul
Publisher: Springer Science & Business Media
ISBN: 1461557135
Category : Computers
Languages : en
Pages : 421
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Book Description
IP Multicast 29 4 29 4.1 Reverse Path Forwarding ....... 4.2 Internet Group Management Protocol 31 Truncated Broadcasting ........ 32 4.3 4.4 Distance Vector Multicast Routing Protocol (DVMRP) 34 4.5 Summary · ......................... 35 5 Multicast Extensions to Open Shortest Path First (MO- SPF) 39 5.1 High-level Description 39 Architecture ...... 40 5.2 5.2.1 Design Goals 41 Protocol Data Structures 41 5.2.2 5.3 Protocol. 44 52 5.4 Summary · ............ 6 Protocol Independent Multicast (PIM) 53 6.1 High-Level Description 53 54 6.2 Architecture . . . . . . . . . . . . . 6.2.1 Design Goals: ........ 54 6.2.2 Components and Functions 55 6.3 Protocol ............... 57 6.3.1 Creating the PIM framework 58 6.3.2 Creating a specific multicast tree for a group 59 6.3.3 Multicast data forwarding . . . . . . 64 6.3.4 Operation in a multi-access network 65 6.3.5 List of PIM messages 68 6.3.6 A complete example 69 6.4 Summary · ...... 69 7 Core-Based Tree (CBT) 73 7.1 High-level Description 73 7.2 Architecture . . . . . . 74 7.2.1 Design Goals: .
Author: Luigi Rizzo
Publisher: Springer
ISBN: 3540467033
Category : Computers
Languages : en
Pages : 352
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Book Description
Enabling group communication is one of the major challenges for the future Internet. Various issues ranging from services and applications to protocols and infrastructure have to be addressed. Moreover, they need to be studied from various angles and therefore involve skills in multiple areas. COST264wascreatedtocontributetothisinternationale?orttowardsgroup communication and related technologies. The European COST framework is ideal for establishing a new community of interest, providing an open forum for ideas, and also supporting young researchers in the ?eld. The COST264 action, o?cially started in late 1998, aims at leveraging the European research in this areaandcreatingintensiveinteractionattheinternationallevel.Tothispurpose, COST264 decided to organize an annual technical workshop, the “International Workshop on Networked Group Communication”. NGC’99 in Pisa is the ?rst event of the series. Despitethisbeingthe?rstworkshopanddespitetheveryshorttimebetween the Call for Papers and the deadline for submissions, and the other con?icting andmoreestablishedevents,theCallforPapersofNGC’99washighlysuccessful: we received 49 papers, of which 18 were selected to compose the basis of the technical program. We hope you will enjoy our paper selection, which is the VI Preface core of these proceedings, and addresses important issues in the research and development of networked group communication. In addition to refereed contributions, we scheduled two keynote speakers (Christophe Diot and Steve Deering), and four invited talks by Ken Birman (Cornell), Bob Briscoe (BT), Radia Perlman (SUN), Tony Speakman (CISCO).
Author: Andy Sloane
Publisher: Springer Science & Business Media
ISBN: 1447103270
Category : Computers
Languages : en
Pages : 243
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Book Description
This book focuses on one of the most exciting aspects of the Internet: the broadcasting of multimedia content. It draws together research from projects by some of the most active and prominent research groups and individuals working in this field across the world. The text explores multimedia webcast issues such as quality technology and interface. It will be of particular interest to research groups and students in the field of internet technology, technical specialists in networks and telematics, and computer scientists involved in event broadcasts and remote skills transfer. The book is one of the first titles in our new series, Computer Communications and Networks.
Author: ACM
Publisher: Addison Wesley Publishing Company
ISBN: 9780201921403
Category : Computers
Languages : en
Pages : 476
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Book Description
The ACM Multimedia Conference Proceedings presents an exciting mixture of technology and art. Papers and panels focus on virtual reality, multimedia databases, data compression, video and audio, and sample applications.
Author: Zoubir Mammeri
Publisher: Springer Science & Business Media
ISBN: 3540222626
Category : Computers
Languages : en
Pages : 1118
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Book Description
This book constitutes the refereed proceedings of the 7th IEEE International Conference on High Speed Networking and Multimedia Communications, HSNMC 2004, held in Toulouse, France in June/July 2004. The 101 revised full papers presented were carefully reviewed and selected from 266 submissions. The papers are organized in topical sections on quality of service, QoS, DiffServ, and performance analysis; scheduling and resource allocation; MPLS; routing and multicast; mobile networks, mobile IP, 3G/UMTS; IEEE 802.11 networks and ad hoc networks; wireless and WLAN; optical networks and WDM; applications and software development; and security and privacy.
Author:
Publisher:
ISBN:
Category : Information storage and retrieval systems
Languages : en
Pages : 492
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Book Description
Author: Sudhir Dixit
Publisher: John Wiley & Sons
ISBN: 0471478288
Category : Technology & Engineering
Languages : en
Pages : 547
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Book Description
Presents a combined view of content and wireless technologiesuseful to both the industry and academia Offers a good mix of theory and practice to understand theinternal working of the wireless/mobile content deliverynetworks Bridges the gap between the wireless and content researchcommunities Focuses not only on the latest technology enablers for speediercontent delivery in the mobile Internet, but also on how tointegrate them to provide workable end-to-end solutions
Author: Helmut Leopold
Publisher: Springer
ISBN: 3540487573
Category : Computers
Languages : en
Pages : 586
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Book Description
The liberalisation in the telecommunication market and thus the advent of competition has had a tremendous impact on business in this area. New operators have started to offer telecommunication services in competition with the classical national network operators. This in turn will have an impact on the market share, the tariff structure, the Quality of Service (QoS) and the services offered to the end customers. A way to maintain or increase revenue for network operators is to additionally offer new services to the customers. The final target is a so-called "Full Service Network (FSN)", which is capable of offering all types of bi-directional multimedia services. The provisioning of new telecommunication services in general and new multimedia services in particular is made possible by the availability of several new technologies as well as through advances in standardisation. R&D policies world-wide but especially in Europe have forced the development of new networking technologies such as ATM, xDSL and HFC as well as new video technologies as defined by DVB and DAVIC.
Author: Jun Li
Publisher: Springer Science & Business Media
ISBN: 146151021X
Category : Computers
Languages : en
Pages : 165
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Book Description
Disseminating Security Updates at Internet Scale describes a new system, "Revere", that addresses these problems. "Revere" builds large-scale, self-organizing and resilient overlay networks on top of the Internet to push security updates from dissemination centers to individual nodes. "Revere" also sets up repository servers for individual nodes to pull missed security updates. This book further discusses how to protect this push-and-pull dissemination procedure and how to secure "Revere" overlay networks, considering possible attacks and countermeasures. Disseminating Security Updates at Internet Scale presents experimental measurements of a prototype implementation of "Revere" gathered using a large-scale oriented approach. These measurements suggest that "Revere" can deliver security updates at the required scale, speed and resiliency for a reasonable cost. Disseminating Security Updates at Internet Scale will be helpful to those trying to design peer systems at large scale when security is a concern, since many of the issues faced by these designs are also faced by "Revere". The "Revere" solutions may not always be appropriate for other peer systems with very different goals, but the analysis of the problems and possible solutions discussed here will be helpful in designing a customized approach for such systems.
