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A flexible concast-based grouping service

Amit Sehgal, Kenneth L. Calvert, James Griffioen
2006 Computer Networks  
We present a scalable and flexible grouping service based on concast and best-effort single-source multicast.  ...  We present simulation data showing the convergence properties of our grouping service and its effectiveness when applied to the problem of constructing overlay networks.  ...  To join the Gnutella network, a new node connects to any existing member of the network and probes its neighbors within a specified overlay-hop radius to discover more members to connect to.  ... 
doi:10.1016/j.comnet.2006.04.028 fatcat:6qjgmokpeveddceggc355yjoga

A Flexible Concast-Based Grouping Service [chapter]

Amit Sehgal, Kenneth L. Calvert, James Griffioen
2002 Lecture Notes in Computer Science  
We present a scalable and flexible grouping service based on concast and best-effort single-source multicast.  ...  We present simulation data showing the convergence properties of our grouping service and its effectiveness when applied to the problem of constructing overlay networks.  ...  To join the Gnutella network, a new node connects to any existing member of the network and probes its neighbors within a specified overlay-hop radius to discover more members to connect to.  ... 
doi:10.1007/3-540-36199-5_17 fatcat:aikvrodlfrcaxk2nkf4ysuntzi

Concast: design and implementation of a new network service

K.L. Calvert, J. Griffioen, A. Sehgal, Su Wen
Proceedings. Seventh International Conference on Network Protocols  
This paper introduces concast, a new network service.  ...  ) acknowledgements We define the semantics of a simple concast service that is the inverse of multicast, as well as a more general custom concast, which allows users to define certain aspects of the service's  ...  Acknowledgement: The authors acknowledge with thanks the contribution of Samrat Bhattacharjee, who wrote the ANSWER simulator and Raj Yavatkar who contributed to early versions of the abstraction.  ... 
doi:10.1109/icnp.1999.801963 dblp:conf/icnp/CalvertGSW99 fatcat:q5wh4vrcajfzxgmhphqx23wgsq

Concast: design and implementation of an active network service

K.L. Calvert, J. Griffioen, B.C. Mullins, A. Sehgal, Su Wen
2001 IEEE Journal on Selected Areas in Communications  
In this paper we describe the concast service and show how it can be implemented in a backwardcompatible manner in the Internet.  ...  Concast is a network layer service that provides many-to-one channels: multiple sources send messages toward one destination, and the network delivers a single "merged" copy to that destination.  ...  His research interests include network protocol design, active network services, distributed file systems and operating systems.  ... 
doi:10.1109/49.917704 fatcat:d4kx52szdraeddgt62oi7sidua

Designing Service-Specific Execution Environments [chapter]

Mary Bond, James Griffioen, Chetan Singh Dhillon, Kenneth L. Calvert
2002 Lecture Notes in Computer Science  
In this paper, we examine the issues involved in the design and implementation of higherlevel active network services.  ...  We describe the issues that arise when using AAs to implement these services and then present our experiences implementing one such service, namely concast, as an AA running on the ASP EE.  ...  An Example Active Service: Concast We begin with a brief overview of the concast service, and then describe our experiences implementing the service as an AA running on ASP.  ... 
doi:10.1007/3-540-36199-5_15 fatcat:ndqlq3oy65e3livnjrapbsgvsq

Leveraging emerging network services to scale multimedia applications

K. Calvert, J. Griffioen, B. Mullins, S. Natarajan, L. Poutievski, A. Sehgal, S. Wen
2003 Software, Practice & Experience  
In this paper, we show how these new network-based mechanisms (specifically the concast service) can improve the performance and scalability of multimedia applications in two ways.  ...  However, using a generic network-level service like concast, transcoding and merging of data flows can be done without any a priori knowledge of where the transcoding takes place.  ...  Having defined the three main components of the concast service and their implementation, we now turn our attention to ways in which the concast service can be used to simplify and/or improve the performance  ... 
doi:10.1002/spe.553 fatcat:5die3da6rvbubil2fcp4vmop3e

Multicast TCP via concast merged acknowledgments

B. Mullins, J. Griffioen, K. Calvert
Proceedings. 12th International Conference on Computer Communications and Networks (IEEE Cat. No.03EX712)  
This paper shows how concast, a network-layer aggregation service, can be used in conjunction with a standard (unmodified) TCP implementation to support reliable multicast while avoiding ACK implosion  ...  The drawback of these multicast TCP services is that they place significant processing load on the sender and they fail to deal with the problem of ACK implosion.  ...  Concast [7] is a programmable network-level service that provides a many-toone service abstraction.  ... 
doi:10.1109/icccn.2003.1284186 dblp:conf/icccn/MullinsGC03 fatcat:j5ap5tt4k5eoln7ti7jtjvc5ie

Building a programmable multiplexing service using concast

K.L. Calvert, J. Griffioen, A. Sehgal, Su Wen
Proceedings 2000 International Conference on Network Protocols  
Concast is a scalable "inverse-multicast" network service: messages sent from multiple sources toward the same destination are merged into a single message that is delivered to the destination.  ...  In this paper we show how concast can serve as the basis for a multiplexing service that can be tailored to the needs of the application, in particular with respect to delay.  ...  The Concast Service Recently we described a new programmable network service called concast [5] , which is essentially the inverse of multicast.  ... 
doi:10.1109/icnp.2000.896307 dblp:conf/icnp/CalvertGSW00 fatcat:7ap5vrmqsvgwpnol5amdekafte

On multicast path finding algorithms

C.-H. Chow
1991 IEEE INFCOM '91. The conference on Computer Communications. Tenth Annual Joint Comference of the IEEE Computer and Communications Societies Proceedings  
We have designed and implemented three multicast path finding algorithms for networks with directed links: an optimal algorithm based on the dynamic programming technique, a heuristic algorithm with the  ...  assumption that all vertices have the multicast capability, and a heuristic algorithm for networks where some vertices do not have the multicast capability.  ...  Acknowledgment The author would like to thank Yowjian Lin and Victor Mak for their valuable comments and their help in deriving the equation for mapping one-to-one ordered sequences of elements selected  ... 
doi:10.1109/infcom.1991.147651 dblp:conf/infocom/Chow91 fatcat:2nrsea3vobbb7oq5lxsnx4mai4

Guest editorial active and programmable networks

2001 IEEE Journal on Selected Areas in Communications  
The introduction of new services is a challenging task requiring new tools for service creation, including new network programming platforms and supporting technologies.  ...  Both of these proposals squarely address the same problem: how to "open up" the network and accelerate its programmability in a controlled and secure manner for the deployment of new architectures, services  ...  Previously, Raj led the research and development activities in the areas of programmable networks, policy-based network management, and end2end quality of service (QoS).  ... 
doi:10.1109/jsac.2001.917701 fatcat:wbzuqc2nvreatbrxcfd6adpc6i

Correctness of Sensor Network Applications by Software Bounded Model Checking [chapter]

Frank Werner, David Faragó
2010 Lecture Notes in Computer Science  
We automatically generate a software behavior model from a network protocol (ESAWN) implementation in a WSN development and deployment platform (TinyOS), which is used to rigorously verify the protocol  ...  Our work is a proof of concept that automatic verification of programs of practical size (≈ 21 000 LoC) and complexity is possible with CBMC and can be integrated into TinyOS.  ...  In this paper, we investigate a concast protocol [5] implementation called ESAWN [2] (Extended Secure Aggregation for Wireless sensor Networks).  ... 
doi:10.1007/978-3-642-15898-8_8 fatcat:enblo5s7f5hunitbajo4zw5qya

The Implications of Pervasive Computing on Network Design [chapter]

R Briscoe
2006 Computer Communications and Networks  
To a casual outsider, a global network of either form of pervasive computing would seem to require a major re-design of the world's communications systems.  ...  This paper concerns concerns the impact that pervasive computing will have on how we design networking.  ...  Acknowledgements Jon Crowcroft (Cambridge Uni), Jane Tateson, Trevor Burbridge, Andrea Soppera, Alan Steventon (BT Research) and the anonymous reviewers.  ... 
doi:10.1007/978-1-84628-429-8_18 fatcat:euzgymvunveh7mja75pdicnita

The Implications of Pervasive Computing on Network Design

R Briscoe
2004 BT technology journal  
To a casual outsider, a global network of either form of pervasive computing would seem to require a major re-design of the world's communications systems.  ...  This paper concerns concerns the impact that pervasive computing will have on how we design networking.  ...  Acknowledgements Jon Crowcroft (Cambridge Uni), Jane Tateson, Trevor Burbridge, Andrea Soppera, Alan Steventon (BT Research) and the anonymous reviewers.  ... 
doi:10.1023/b:bttj.0000047131.43151.f3 fatcat:nknd4m2lwvb5lkhrmgxuaez5g4

Lightweight network support for scalable end-to-end services

Kenneth L. Calvert, James Griffioen, Su Wen
2002 Proceedings of the 2002 conference on Applications, technologies, architectures, and protocols for computer communications - SIGCOMM '02  
We discuss the issues involved in the design of such a service and describe three broad classes of problems for which ESP enables robust solutions.  ...  Some end-to-end network services benefit greatly from network support in terms of utility and scalability.  ...  Acknowledgements This paper has benefited greatly from the constructive comments of the anonymous referees and especially our shepherd, David Wetherall.  ... 
doi:10.1145/633025.633051 dblp:conf/sigcomm/CalvertGW02 fatcat:ll4t5yj4wvclxfjfbwvhtv2gxu

Lightweight network support for scalable end-to-end services

Kenneth L. Calvert, James Griffioen, Su Wen
2002 Computer communication review  
We discuss the issues involved in the design of such a service and describe three broad classes of problems for which ESP enables robust solutions.  ...  Some end-to-end network services benefit greatly from network support in terms of utility and scalability.  ...  Acknowledgements This paper has benefited greatly from the constructive comments of the anonymous referees and especially our shepherd, David Wetherall.  ... 
doi:10.1145/964725.633051 fatcat:t34idpslgjgfjkysdt427tg5wq
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