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 TitleDate AddedCompany
whitepaper Enabling Co-operation Between ISPs and P2P Systems2007-03-01 Deutsche Telekom
  Peer-to-Peer (P2P) systems, which are realized as overlays on top of the underlying Internet routing architecture, contribute a significant portion of today's Internet traffic. While the P2P users are a good source of revenue for the Internet Service Providers (ISPs), the immense P2P traffic also poses a significant traffic engineering challenge to the ISPs. This is because P2P systems implement their own routing in the overlay topology, which is largely independent of the Internet routing, and thus impedes the ISP's traffic engineering capabilities. On the other hand, P2P users are primarily interested in finding their desired content quickly, with good performance.

Tags: Internet and Web		   
whitepaper A Modeling Framework to Understand the Tussle Between ISPs and Peer-to-Peer File Sharing Users2007-02-26 Universita degli Studi di Torino
  Recent measurement studies have shown that traffic generated by Peer-to-Peer (P2P) file sharing applications has started to dominate the bandwidth consumption on Internet access links. The prevailing use of P2P applications carries with it significant implications for Internet Service Providers (ISPs): on the one hand increased levels of P2P traffic result in additional costs for an ISP, which has to provide a satisfactory service level to its subscribers. On the other hand, P2P applications are a major driving force for the adoption of broadband access, which is a significant source of revenue for the ISPs. A successful strategy to manage P2P traffic must address both the ISP perspective of costs and the subscriber perspective of quality of service.

Tags: Network Technologies, Internet and Web		   
whitepaper Mutually Controlled Routing With Independent ISPs2007-02-22 Microsoft
  This paper presents Wiser, an Internet routing protocol that enables ISPs to jointly control routing in a way that produces efficient end-to-end paths even when they act in their own interests. Wiser is a simple extension of BGP, uses only existing peering contracts for monetary exchange, and can be incrementally deployed. Each ISP selects paths in a way that presents a compromise between its own considerations and those of other ISPs. Done over many routes, this allows each ISP to improve its situation by its own optimization criteria compared to the use of BGP today. This paper evaluates Wiser using a router-level prototype and simulation on measured ISP topologies.   
whitepaper Vertical Relations and Connectivity in the Internet2007-02-13 University of Florida
  The Internet is a "Network of networks". The effectiveness of the Internet crucially depends on the interconnection among individual networks, which display a hierarchical structure. At the bottom of the hierarchy, individuals and business enterprises use end-systems to connect to local Internet Service Providers (ISPs) through an access network. Local ISPs are connected to regional ISPs, which, in turn, serve as an interface point to the backbone layer. The backbone layer, which is the highest tier in the hierarchy, is built up by multiple interconnected backbone providers. In the Internet industry there are externalities that are derived from its vertical structure. Moreover, the industry is characterized by substantial network externalities.   
whitepaper HPTP: Relieving the Tension Between ISPs and P2P2007-01-27 Microsoft
  Measurement-based studies indicate that there is a severe tension between P2P applications and ISPs. This paper proposes a novel HTTP-based Peer-To-Peer (HPTP) framework to relieve this tension. The key idea is to exploit the widely deployed web cache proxies of ISPs to trick them to cache P2P traffic. This is achieved via a process the authors refer to as "HTTPifying": the authors segment large P2P files or streams into smaller chunks, encapsulate and transport them using the HTTP protocol so that they are cacheable and outline the design of several key tools of the proposed HPTP framework - HTTPifying, cache detection and usability test tools, and describe a Cache-Aware Tree Construction (CATC) protocol for delivering P2P streaming traffic as an example to showcase the HPTP framework.

Tags: Internet and Web, Internet and Web		   
whitepaper E-911 Challenges for Voice Over Broadband (VOBB) Service Providers2007-01-10 Sonus Networks
  Evolving technology has enabled a new breed of voice service providers to begin offering Voice-over-Broadband (VOBB) services. The commonplace E-911 service that had been available for years in the legacy voice network turned out to be not-so-simple to deploy in the VOBB environment. Initial VOBB services did not include E-911, and this led to several highly publicized events in which emergency services were delayed, sometimes leading to fatal consequences. This motivated the FCC to order that all VOBB service providers enable E-911 service for their customers by November 005 or face sanctions. Faced with this deadline, the telecom industry responded with new solutions to enable E- for VOBB subscribers.

Tags: Network Technologies, Internet and Web		   
whitepaper Can ISPs and P2P Users Cooperate for Improved Performance?2007-01-09 University of Paderborn
  Peer-to-Peer (P2P) systems, which are realized as overlays on top of the underlying Internet routing architecture, contribute a significant portion of today's Internet traffic. On the one hand, this is a problem for Internet Service Providers (ISPs), as they have no control over the structure of the P2P system and therefore they cannot control the associated traffic flows. On the other hand, P2P users just want to find their desired content quickly, with good performance. Yet, as the P2P system has no access to the underlying network, it either has to measure the performance itself or to build its overlay topology more or less agnostic of the underlay. This situation is frustrating to both ISPs as well as P2P users.

Tags: Internet and Web, Network Management		   
whitepaper Negotiation-Based Routing Between Neighboring ISPs2007-01-01 University of Washington
  This paper explores negotiation as the basis for cooperation between competing entities, for the specific case of routing between two neighboring ISPs. Inter-domain routing is often driven by self-interest and based on a limited view of the internetwork, which hurts the stability and efficiency of routing. The paper presents a negotiation framework in which adjacent ISPs share information using coarse preferences and jointly decide the paths for the traffic flows they exchange. The framework enables pairs of ISPs to agree on routing paths based on their specific relationship, even if they have different optimization criteria.

Tags: Internet and Web		   
whitepaper Failures in a Hybrid Content Blocking System2007-01-01 University of Cambridge
  Three main methods of content blocking are used on the Internet: blocking routes to particular IP addresses, blocking specific URLs in a proxy cache or firewall, and providing invalid data for DNS lookups. The mechanisms have different accuracy/cost trade-offs. This paper examines a hybrid, two-stage system that redirects traffic that might need to be blocked to a proxy cache, which then takes the final decision. This promises an accurate system at a relatively low cost. A British ISP has deployed such a system to prevent access to child pornography.

Tags: Internet and Web, Internet and Web		   
whitepaper Performance Modeling on the Interaction of ISPs2007-01-01 Chinese University of Hong Kong
  This paper considers interactions of Internet Service Providers (ISPs) and how these interactions can affect the overall traffic and resource allocation between ISPs. In particular, the paper considers a simplified two-level hierarchical model wherein there are a single tier-1 ISP and N>1 tier-2 ISPs. Each tier-2 ISP needs to pay the tier-1 ISP for the connectivity service. At the same time, a tier-2 ISP can also arrange to have "Private peering" links with other tier-2 ISPs. Therefore, each tier-2 ISP can optimize its utility by deciding on the proper traffic routing of transmitting traffic, either via the tier-1 ISP link, or via the private peering link with other tier-2 ISPs.

Tags: Internet and Web