Comparing P2P Solutions - PeerApp White Paper Comparing P2P...

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ISPs: Fight or Embrace P2P? ISPs face a fundamental question: should they work to limit P2P traffic on their networks or embrace P2P, manage it effectively, and learn to benefit from it? As with most Internet traffic trends, there is inevitability to P2P traffic. It is doubtful that ISPs can effectively prevent P2P traffic from infiltrating their networks through protocol blocking, or that they can afford to continually purchase more bandwidth to handle increased traffic. When you add in the benefits from P2P for legal file sharing and content delivery, embracing P2P and accommodating for P2P network traffic seems to be an ISP’s best solution. However, today many ISPs continue to fight P2P on their networks, and they face constantly changing technical hurdles and customer dissatisfaction. Whether an ISP chooses to fight or embrace P2P is a major factor in choosing a P2P management solution. PeerApp White Paper Comparing P2P Solutions Executive Summary Peer to peer (P2P) represents a major challenge for Internet service providers (ISPs) today. P2P traffic, which accounts for upward of 70 percent of all Internet traffic today—growing by an estimated 350 percent annually—consumes excess ISP network capacity, drives up bandwidth costs, and increases customer support costs and churn rates. This accounts for significant lost revenue and negatively impacts ISP competitiveness. P2P traffic growth continues to grow unabatedly and is expected to increase even dramatically. Whether it is software companies distributing new releases, enterprise customers using P2P to distribute training materials or corporate information, or music labels and movie studios distributing entertainment, companies have begun using P2P as a scalable solution to reduce the cost of content delivery. For ISPs, the effect of P2P is more nuanced than it first appears. Surely overall growth in usage affects ISP networks, but this is further complicated by two facts unique to P2P. First, P2P incurs dramatically more bandwidth per user, which impacts network sizing and oversubscription rates. Second, P2P is bidirectional by nature, with subscribers requiring large upstream bandwidth, which also impacts network configuration. Most ISPs now realize that P2P must be addressed, and most are in the process of evaluating usage policies and technology solutions to handle this challenge. On the technology side, ISPs have a variety of choices to address P2P—from acquiring more bandwidth to traffic shaping to completely blocking P2P traffic. Today, there are four available solutions to address P2P network traffic growth, each of which is evaluated in detail as follows: ISP pricing and policies —Modifying subscription plans from unlimited to usage-based pricing Purchasing additional bandwidth —Buying transit bandwidth to accommodate network growth from increased P2P usage Traffic shaping— Utilizing deep packet inspection devices to throttle or completely block P2P traffic P2P caching —Utilizing P2P caches to cache and serve P2P content
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This note was uploaded on 10/15/2011 for the course ECON 1102 taught by Professor Jahis during the Spring '09 term at University of Minnesota Crookston.

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Comparing P2P Solutions - PeerApp White Paper Comparing P2P...

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