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 TitleDate AddedCompany
whitepaper Scalable Position-Based Multicast for Mobile Ad-Hoc Networks2008-01-01 University of Mannheim
  This paper presents Scalable Position-Based Multicast (SPBM), a multicast routing protocol for ad-hoc networks. SPBM uses the geographic position of nodes to provide a highly scalable group membership scheme and to forward data packets with a very low overhead. SPBM bases its multicast forwarding decision on whether there are group members located in a given direction or not, allowing for a hierarchical aggregation of group members contained in geographic regions: the larger the distance between a region containing group members and an intermediate node, the larger can this region be without having a significant impact on the accuracy of the direction from the intermediate node to that region.

Tags: Network Management, Mobile and Wireless		   
whitepaper Towards an Active Network Architecture2008-01-01 Massachusetts Institute of Technology
  Active networks allow their users to inject customized programs into the nodes of the network. An extreme case, in which one is most interested, replaces packets with "Capsules" - program fragments that are executed at each network router/switch they traverse. Active architectures permit a massive increase in the sophistication of the computation that is performed within the network. They will enable new applications, especially those based on application-specific multicast, information fusion, and other services that leverage network-based computation and storage. Furthermore, they will accelerate the pace of innovation by decoupling network services from the underlying hardware and allowing new services to be loaded into the infrastructure on demand.

Tags: Network Technologies, Network Management		   
whitepaper Offering a Multicast Delivery Service in a Programmable Secure IP VPN Environment2008-01-01 Association for Computing Machinery
  The programmable network approach is one possible solution to quickly adapt existing infrastructures to new requirements. This paper shows how programmable net-working can be exploited within a VPN environment to offer a secure group communication service across the Internet. The paper shows how the IP VPN approach offloads security, management and administration hassles from the multicast members and the paper proposes a new simple Internet VPN Group Management Protocol, IVGMP, as an alter-native to traditional multicast routing protocols.

Tags: LAN - WAN, Intrusion - Tampering		   
whitepaper Measurement and Analysis of a Streaming-Media Workload2008-01-01 University of Washington
  The increasing availability of continuous-media data is provoking a significant change in Internet workloads. For example, video from news, sports, and entertainment sites, and audio from Internet broadcast radio, telephony, and peer-to-peer networks, are becoming commonplace. Compared with traditional Web workloads, multimedia objects can require significantly more storage and transmission bandwidth. As a result, performance optimizations such as streaming-media proxy caches and multicast delivery are attractive for minimizing the impact of streaming-media workloads on the Internet. However, because few studies of streaming-media workloads exist, the extent to which such mechanisms will improve performance is unclear.

Tags: Internet and Web, Software Development Tools		   
whitepaper A Peer-to-Peer Architecture for Media Streaming2008-01-01 Institute of Electrical and Electronics Engineers
  Given the fact that the current Internet does not widely support IP Multicast while content-distribution-networks technologies are costly, the concept of peer-to-peer could be a promising start for enabling large-scale streaming systems. This paper proposes a method for clustering peers into a hierarchy called the administrative organization for easy management, and a method for building the multicast tree atop this hierarchy for efficient content transmission. In Zigzag, the multicast tree has a height logarithmic with the number of clients, and a node degree bounded by a constant. This helps reduce the number of processing hops on the delivery path to a client while avoiding network bottleneck. Consequently, the end-to-end delay is kept small.

Tags: Internet and Web, Network Technologies		   
whitepaper Proxy-Based Distribution of Streaming Video Over Unicast/Multicast Connections2008-01-01 University of Massachusetts
  This paper addresses the problem of efficiently streaming a set of heterogeneous videos from a remote server through a proxy to multiple asynchronous clients so that they can experience playback with low startup delays. They developed a technique to analytically determine the optimal proxy prefix cache allocation to the videos that minimizes the aggregate network bandwidth cost. The paper integrated proxy caching with traditional server-based reactive transmission schemes such as batching, patching and stream merging to develop a set of proxy-assisted schemes. Then they quantitatively explored the impact of the choice of transmission scheme, cache allocation policy, proxy cache size, and availability of unicast versus multicast capability, on the resultant transmission cost.

Tags: Network Management, Network Technologies		   
whitepaper Composition of Java-Based Router Elements and Its Application to Generalized Video Multicast2008-01-01 Purdue University
  This paper describes a software router capable of flexible service composition through plug and play of specialized Java software modules. These Java modules - previously developed for network simulation in the J-Sim project - are leveraged for actual deployment on the router through a JSocket class of objects. The system provides significant software engineering benefits of simplified code development and safe composition/reuse of various router components. These benefits have proved highly useful in implementing new network services for emerging application needs. In particular, the paper presents a paradigm of generalized multicast with application to large-scale video streaming.

Tags: Software Development Tools, Network Technologies		   
whitepaper Multicast Routing Simulator Over MPLS Networks2008-01-01 French National Institute for Research in Computer Science and Control
  Multicast and MPLS are two complementary technologies. Merging these two technologies where multicast trees are constructed over MPLS networks will enhance performance and present an efficient solution for multicast scalability and control overhead problems. This paper presents a simulator for multicast routing over an MPLS network where it chooses PIM-SM (source specific tree) as the multicast routing protocol. A simulator for multicast routing over MPLS network is an original idea since this kind of simulator never existed before and it will help researchers to simulate and evaluate their MPLS multicast related techniques.

Tags: Network Technologies, LAN - WAN		   
whitepaper Multicast-VPN - IP Multicast Support for MPLS VPNs2007-11-17 Cisco Systems
  This Multicast-VPN - IP Multicast Support for MPLS VPNs feature allows a service provider to configure and support multicast traffic in a Multiprotocol Label Switching (MPLS) Virtual Private Network (VPN) environment. This feature supports routing and forwarding of multicast packets for each individual VPN Routing and Forwarding (VRF) instance, and it also provides a mechanism to transport VPN multicast packets across the service provider backbone. The Multicast-VPN feature in Cisco IOS software provides the ability to support the multicast feature over a Layer 3 VPN. As enterprises extend the reach of their multicast applications, service providers can accommodate these enterprises over their MPLS core network. IP multicast is used to stream video, voice, and data to a MPLS VPN network core.

Tags: LAN - WAN, LAN - WAN		   
whitepaper An Empirical Study of Reliable Multicast Protocols Over Ethernet - Connected Networks2007-11-08 Florida State University
  Off late advances in multicasting over the Internet present new opportunities for improving communication performance in clusters of workstations. The standard IP multicast, however, only supports unreliable multicast, which is difficult to use for building high level message passing routines. Thus, reliable multicast primitives must be implemented over the standard IP multicast to facilitate the use of multicast for high performance communication on clusters of workstations. Although many reliable multicast protocols have been proposed for the wide area Internet environment, the impact of architectural features of Local Area Networks (LANs) on the reliable multicast protocols has not been thoroughly studied. Efficient reliable multicast protocols for LANs must exploit these features to achieve the best performance.

Tags: Network Technologies