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.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • PCAOB (Public Company Accounting Oversight Board)

    The Public Company Accounting Oversight Board (PCAOB) is a Congressionally-established nonprofit that assesses audits of public ...

  • cyborg anthropologist

    A cyborg anthropologist is an individual who studies the interaction between humans and technology, observing how technology can ...

  • RegTech

    RegTech, or regulatory technology, is a term used to describe technology that is used to help streamline the process of ...

SearchSecurity

  • spear phishing

    Spear phishing is an email-spoofing attack that targets a specific organization or individual, seeking unauthorized access to ...

  • supercookie

    A supercookie is a type of tracking cookie inserted into an HTTP header by an internet service provider to collect data about a ...

  • email spam

    Email spam, or junk email, is unsolicited bulk messages sent through email with commercial, fraudulent or malicious intent.

SearchHealthIT

SearchDisasterRecovery

  • call tree

    A call tree -- sometimes referred to as a phone tree -- is a telecommunications chain for notifying specific individuals of an ...

  • mass notification system (MNS)

    A mass notification system is a platform that sends one-way messages to inform employees and the public of an emergency.

  • disaster recovery as a service (DRaaS)

    One approach to a strong disaster recovery plan is DRaaS, where companies offload data replication and restoration ...

SearchStorage

  • GlusterFS (Gluster File System)

    GlusterFS (Gluster File System) is an open source distributed file system that can scale out in building-block fashion to store ...

  • virtual memory

    Virtual memory is a memory management capability of an OS that allows a computer to compensate for physical memory shortages by ...

  • yottabyte (YB)

    A yottabyte is a measure of theoretical storage capacity and is 2 to the 80th power bytes, or, in decimal, approximately 1,000 ...

SearchSolidStateStorage

  • PCIe SSD (PCIe solid-state drive)

    A PCIe SSD (PCIe solid-state drive) is a high-speed expansion card that attaches a computer to its peripherals.

  • SSD caching

    SSD caching, also known as flash caching, is the temporary storage of data on NAND flash memory chips in a solid-state drive so ...

  • NVDIMM (Non-Volatile Dual In-line Memory Module)

    An NVDIMM (non-volatile dual in-line memory module) is hybrid computer memory that retains data during a service outage.

SearchCloudStorage

  • RESTful API

    A RESTful application program interface breaks down a transaction to create a series of small modules, each of which addresses an...

  • cloud storage infrastructure

    Cloud storage infrastructure is the hardware and software framework that supports the computing requirements of a private or ...

  • Zadara VPSA and ZIOS

    Zadara Storage provides block, file or object storage with varying levels of compute and capacity through its ZIOS and VPSA ...

Close