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 TitleDate AddedCompany
whitepaper Efficient Overlay Multicast for Mobile Ad Hoc Networks0000-00-00 University of California
  Overlay multicast protocol builds a virtual mesh spanning all member nodes of a multicast group. It employs standard unicast routing and forwarding to fulfill multicast functionality. The advantages of this approach are robustness and low overhead. However, efficiency is an issue since the generated multicast trees are normally not optimized in terms of total link cost and data delivery delay. This paper proposes an efficient overlay multicast protocol to tackle this problem in MANET environment. The virtual topology gradually adapts to the changes in underlying network topology in a fully distributed manner. A novel Source-Based Steiner tree algorithm is proposed for constructing the multicast tree.

Tags: Software Development Tools, Mobile and Wireless		   
whitepaper Scalable Multicasting in Mobile Ad Hoc Networks0000-00-00 University of California
  Many potential applications of Mobile Ad hoc Networks (MANETs) involve group communications among the nodes. Multicasting is an useful operation that facilitates group communications. Efficient and scalable multicast routing in MANETs is a difficult issue. In addition to the conventional multicast routing algorithms, recent protocols have adopted the following new approaches: overlays, backbone-based, and stateless. This paper studies these approaches from the protocol state management point of view, and compare their scalability behaviors.

Tags: Network Management, Mobile and Wireless		   
whitepaper IP Multicast Network Management Overview2007-08-01 Cisco Systems
  The Cisco IP Next-Generation Network (IP NGN) architecture simplifies the development and deployment of advanced services while enabling service providers to lower capital and operational expenditures. The inherent efficiencies of a converged network reduce administrative overhead, and the architecture facilitates the integration of intelligence and instrumentation for efficient management. This paper provides an overview of the instrumentation, tools, and solutions that enable the management of Cisco IP multicast deployments.   
whitepaper Multicast With Wireless LAN Controllers (WLCs) and Lightweight Access Points (LAPs) Configuration Example2007-07-31 Cisco Systems
  This paper provides a configuration example on how to configure Wireless LAN Controllers (WLCs) and Lightweight Access Points (LAPs) for multicasting and communication with a multicast enabled wired network. Before Cisco Unified Wireless Network Software Release 3.2, when IP multicast was enabled, the controller delivered multicast packets to wireless LAN (WLAN) clients by making copies of the multicast packets, then forwarded the packets through a unicast Lightweight Access Point Protocol (LWAPP) tunnel to each access point (AP) connected to the controller. Each multicast frame received by the controller from a VLAN on the first hop router was copied and sent over the LWAPP tunnel to each of the APs connected to it.

Tags: Network Technologies		   
whitepaper Multi-Layer Network Design With Multicast Traffic and Statistical Multiplexing2007-07-27 Politecnico di Milano
  The new packet services and applications are radically changing not only traffic demands but also the architecture of transport networks. Adding packet layer support into backbone nodes is considered an important opportunity by telecom carriers that want to integrate packet technologies of the access and metropolitan networks within their networks to improve efficiency and flexibility. In this context, Multi-Protocol Label Switching (MPLS) is at the moment the most promising and popular packet technology. The resulting new network architecture requires new models and methodologies for designing the network in a cost effective way. The classical network design approaches are no longer appropriate since they cannot capture the traffic aggregation effect due to the added packet layer, and new multi-layer network design models must be adopted.

Tags: Network Management, LAN - WAN		   
whitepaper Dagster: Contributor-Aware End-Host Multicast for Media Streaming in Heterogeneous Environment2007-07-12 National University of Singapore
  The paper presents Dagster, an end-host multicast scheme for delivering multimedia streams. Unlike previous schemes, Dagster does not constrain the amount of bandwidth a node must donate. Instead, it relies on a novel incentive scheme to encourage nodes to contribute more bandwidth to improve the total capacity of the system. The key idea behind the incentive is that Dagster allows a node with more donated bandwidth to preempt another node in the system. Dagster also allows a host to receive from multiple parents at the same time, thus is more resilient to node failures.

Tags: Internet and Web, Software Development Tools		   
whitepaper Report on the Introduction of an Application Layer Multicast Scheme for Streaming Media Delivery in eLearning Environments2007-07-04 National Technical University of Athens
  The main contribution of this paper is to describe an eLearning framework suitable for offering live streaming functionality in the context of educational purposes. The proposed platform is a decentralized, end-to-end solution that can be deployed irrespectively of the underlying network infrastructure without posing any additional requirements. The aforementioned features derive from the deployment of overlay networks and the suggested scheme is inline with the current trends in the area of content delivery. A strong point of the architecture proposed is that it is accessible from a wide range of end-users in terms of their transmission facilities and that it can smoothly co-exist/co-operate with other streaming applications.

Tags: Internet and Web		   
whitepaper The Multicast Capacity of Large Multihop Wireless Networks2007-06-13 Association for Computing Machinery
  This paper considers wireless ad hoc networks with a large number of users. Subsets of users might be interested in identical information, and so the authors have a regime in which several multicast sessions may coexist. The paper first calculates an upper-bound on the achievable transmission rate per multicast flow as a function of the number of multicast sources in such a network. It then proposes a simple comb-based architecture for multicast routing which achieves the upper bound in an order sense under certain constraints. Compared to the approach of constructing a Steiner tree to decide multicast paths, the construction achieves the same order-optimal results while requiring little location information and no computational overhead.

Tags: Network Management, Mobile and Wireless		   
whitepaper Well Beyond Streaming Video: IPv6 and the Next Generation Television2007-06-12 Newcastle University
  The Internet has provided a plethora of commercial opportunities, the majority of them arising from advances in software and networking. As the technology evolves in an ever increasing pace, new opportunities are bound to be created. This paper examines how one of these technologies, the 6th version of the Internet Protocol, may affect the Internet and the opportunities associated with it, by looking at one specific emerging application: Internet Television (IPTv). In particular, the paper examines the possible impact and implications of multicasting on television broadcasts.

Tags: Internet and Web, Internet and Web		   
whitepaper Transparent Reliable Multicast for Ethernet-Based Storage Area Networks2007-05-01 Stony Brook University
  As disk storage density increases and data availability requirements become ever more demanding, data replication is increasingly an indispensable feature of enterprise-class storage systems. For highly available storage systems, every disk block is typically replicated on a local mirror server and a remote mirror server in addition to being stored on the main storage server. This paper describes a novel reliable multicast mechanism for Ethernet-based storage area networks that effectively exploits the Virtual LAN technology and is able to keep the traffic load of N-way replication roughly at the same level as the no-replication case regardless of the value of N.

Tags: Network Technologies, Storage Hardware