Browse Definitions :
Definition

P4P (proactive provider participation for P2P)

What is P4P?

P4P (proactive provider participation for P2P) is a protocol designed to improve the use of available bandwidth in a P2P network by reducing the overall volume of traffic. The term P2P (peer-to-peer) refers to any transient network on the Internet that allows a geographically dispersed group of end users to directly access files from each other's computers. P4P differs from the traditional P2P protocol by intelligently selecting peers to optimize routing efficiency.

Originally, P2P technology was used for simple file sharing such as text and images. However, in recent years, more bandwidth-hungry applications have evolved such as streaming media, Internet television, full-motion videoconference activity and online gaming. The extensive use of these applications has given rise among some experts to a concern that the Internet might "break under the strain." A major part of the problem is a tendency for traffic among routers to be unevenly distributed, resulting in inefficient routing with unnecessary hops between end users.

P4P minimizes the number of routers and hops involved in media distribution by means of devices called peer trackers and Internet trackers. When a peer has data to send, it queries the peer tracker for available peers in the local network. The peer tracker returns the information, if any is available, to the sending peer. If no local peers are available, the peer tracker queries the Internet tracker for available peers on the larger Internet. The Internet tracker returns a list of active peers to the peer tracker, which in turn provides the information to the original initiating peer. In effect, P4P does "proactive research" to determine the most efficient possible way for data to be routed between end users before any data is actually exchanged.

P4P technology, originally introduced by Verizon, has been shown to increase performance by as much as several hundred percent over traditional P2P. The extent of the improvement in any particular situation depends on the nature of the data to be shared, the overall volume of traffic, the number of routers involved, the available bandwidth and the network topology.

Read more about it:
> OpenP4P outlines the benefits of P4P and answers commonly asked questions.
> The Distributed Computing Industry Association (DCIA) describes in depth how P4P works.

This was last updated in March 2011

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • smart contract

    A smart contract, also known as a cryptocontract, is a computer program that directly controls the transfer of digital currencies...

  • risk map (risk heat map)

    A risk map, also known as a risk heat map, is a data visualization tool for communicating specific risks an organization faces. A...

  • internal audit (IA)

    An internal audit (IA) is an organizational initiative to monitor and analyze its own business operations in order to determine ...

SearchSecurity

SearchHealthIT

  • Health IT (health information technology)

    Health IT (health information technology) is the area of IT involving the design, development, creation, use and maintenance of ...

  • fee-for-service (FFS)

    Fee-for-service (FFS) is a payment model in which doctors, hospitals, and medical practices charge separately for each service ...

  • biomedical informatics

    Biomedical informatics is the branch of health informatics that uses data to help clinicians, researchers and scientists improve ...

SearchDisasterRecovery

  • risk mitigation

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a data center.

  • ransomware recovery

    Ransomware recovery is the process of resuming options following a cyberattack that demands payment in exchange for unlocking ...

  • natural disaster recovery

    Natural disaster recovery is the process of recovering data and resuming business operations following a natural disaster.

SearchStorage

  • RAID 5

    RAID 5 is a redundant array of independent disks configuration that uses disk striping with parity.

  • non-volatile storage (NVS)

    Non-volatile storage (NVS) is a broad collection of technologies and devices that do not require a continuous power supply to ...

  • petabyte

    A petabyte is a measure of memory or data storage capacity that is equal to 2 to the 50th power of bytes.

Close