If you are using the mạng internet regularly, it is highly unlikely that you have sầu not encountered the term peer-to-peer or P2P.. Whether it was mentioned in a news article, on TV, or in a conversation with a friover, who told you that he just downloaded the lachạy thử version of Linux through P2Phường, you may have stumbled upon this term. If you want khổng lồ know what peer-to-peer networks are, what P2P is used for, and also see some peer-to-peer network examples, you should read this article:
What is a peer-to-peer network?
Peer-to-peer, or P2P.. in its abbreviated khung, refers lớn computer networks using a distributed architecture. In P2P.. networks, all the computers and devices that are part of them are referred to as peers, and they giới thiệu and exchange workloads. Each peer in a peer-to-peer network is equal khổng lồ the other peers. There are no privileged peers, và there is no primary administrator device in the center of the network.
Bạn đang xem: What is peer
In a way, peer-to-peer networks are the most egalitarian networks in the computer world. Each peer is equal lớn the others, & each peer has the same rights và duties as the others. Peers are both clients và servers at the same time.
In fact, every resource & each asmix that’s available in a peer-to-peer network is shared among mỏi peers, without any central VPS being involved. The shared resources in a P2Phường network can be things such as processor usage, disk storage capathành phố, or network bandwidth.
What is P2P (peer-to-peer) used for?
The primary goal of peer-to-peer networks is to lớn chia sẻ resources & help computers & devices work collaboratively, provide specific services, or execute specific tasks. As mentioned earlier, P2P is used khổng lồ giới thiệu all kinds of computing resources such as processing power, network bandwidth, or disk storage space. However, the most common use case for peer-to-peer networks is the sharing of files on the internet. Peer-to-peer networks are ikhuyến mãi for file sharing because they allow the computers connected to them to lớn receive sầu files and send files simultaneously.
Imagine this situation: you open your web browser & visit a website where you tải về a tệp tin. In this case, the trang web works as a VPS, và your computer acts as a client receiving the tệp tin. You can compare it lớn a one-way road: the tệp tin that you download is a car that goes from point A (the website) to lớn point B (your computer).
Xem thêm: Mã Chứng Khoán Phân Bón Bình Điền, Ctcp Phân Bón Bình Điền
When you download the same file from a peer-to-peer network, using a BitTorrent platform as a starting point, the tải về is performed differently. The tệp tin is downloaded to lớn your computer in bits and parts that come from many other computers that also connected khổng lồ the same P2P network & already have that tệp tin or at least parts of it. At the same time, the tệp tin is also sent (uploaded) from your computer lớn other devices that are asking for it. This situation is similar to a two-way road: the file is like multiple small cars coming lớn your PC, while also leaving khổng lồ others when it is requested.
Why are peer-to-peer networks useful?
P2P networks have sầu some characteristics that make them useful:
It’s hard to lớn take them down. Even if one of the peers is shut down, the others are still operating and communicating. For a P2Phường (peer-to-peer) network khổng lồ stop working, you have to close down all its peers.Peer-to-peer networks are incredibly scalable. Adding new peers is easy as you don’t need to lớn bởi any central configuration on a central server.When it comes lớn file-sharing, the larger a peer-to-peer network is, the faster it is. Having the same file stored on many of the peers in a P2Phường. network means that when someone needs lớn download it, the file is downloaded from multiple locations simultaneously.P2P (peer-to-peer) network examples
We all use peer-to-peer networks to connect computers & devices without the need to lớn configure a hệ thống. Having to lớn create a hệ thống for everything is expensive and difficult to lớn manage, so in some situations, it’s easier & more affordable khổng lồ use P2P networks. Here are some examples of comtháng use cases for peer-to-peer networks:
P2Phường. networks are one of the most affordable methods of distributing nội dung because they use the bandwidth of peers, not the bandwidth of the content’s creator.
The history of P2P. (peer-to-peer) networks
The precursor of peer-to-peer networks appears to be USENET, which was developed in 1979. It was a system that allowed users lớn read và post messages/news. It was a network system similar khổng lồ the online forums today, but with the difference that USENET did not rely on a central server or administrator. USENET copied the same message/news lớn all the servers found in the network. Similarly, peer-to-peer networks distribute and use all the resources available lớn them.
Image source: Wikipedia