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Patipan Chaiyabut
Patipan Chaiyabut

Push Pull Download Bittorrent


Push Pull download bittorrent




BitTorrent is a peer-to-peer file sharing protocol that allows users to download and upload files over the internet. BitTorrent works by splitting large files into smaller pieces, called chunks, and distributing them among the peers in a swarm. A swarm is a group of peers that are interested in the same file. Each peer can download chunks from other peers and upload chunks to other peers, creating a network of data exchange.


Push Pull is a term used to describe the behavior of peers in a BitTorrent swarm. Push refers to the act of uploading chunks to other peers, while Pull refers to the act of downloading chunks from other peers. Push Pull is influenced by several factors, such as the availability of chunks, the bandwidth of peers, the demand for the file, and the incentives of the protocol.


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Availability of chunks




The availability of chunks is the number of copies of each chunk in the swarm. The higher the availability, the easier it is for peers to find and download chunks. The availability of chunks depends on the number and diversity of peers in the swarm. A larger and more diverse swarm will have higher availability than a smaller and more homogeneous swarm.


When a new file is introduced to the BitTorrent network, it has low availability, since only the initial seeder has the complete file. A seeder is a peer that has downloaded the entire file and continues to upload chunks to other peers. As more peers join the swarm and download chunks, the availability increases, until it reaches a steady state where each chunk has multiple copies in the swarm.


Bandwidth of peers




The bandwidth of peers is the amount of data they can upload and download per unit of time. The bandwidth of peers affects the speed and efficiency of Push Pull. Peers with higher bandwidth can upload and download more chunks than peers with lower bandwidth, contributing more to the data exchange in the swarm.


However, bandwidth is not unlimited, and peers have to balance their upload and download rates. If a peer uploads more than it downloads, it will deplete its bandwidth and slow down its own download. If a peer downloads more than it uploads, it will be seen as a leecher and may be penalized by other peers. A leecher is a peer that downloads more than it uploads, consuming more resources than it contributes.


Demand for the file




The demand for the file is the level of interest and popularity of the file among users. The demand for the file affects the size and dynamics of the swarm. A file with high demand will attract more peers to join the swarm, increasing the availability and diversity of chunks. A file with low demand will have fewer peers in the swarm, decreasing the availability and diversity of chunks.


The demand for the file also affects the motivation and behavior of peers in Push Pull. Peers that are interested in downloading and sharing a file will tend to upload more chunks than peers that are not interested or have already downloaded the file. Peers that are not interested or have already downloaded the file may leave the swarm or become seeders, depending on their altruism and incentives.


Incentives of the protocol




The incentives of the protocol are the rules and mechanisms that encourage or discourage certain actions by peers in Push Pull. The incentives of the protocol aim to achieve two goals: fairness and efficiency. Fairness means that peers should receive proportional benefits for their contributions, while efficiency means that peers should maximize their download speed and minimize their upload cost.


One of the main incentives of BitTorrent is tit-for-tat, which means that peers reciprocate each other's uploads and downloads. Peers prefer to exchange chunks with peers that have uploaded chunks to them, creating a positive feedback loop. Peers also avoid exchanging chunks with leechers, creating a negative feedback loop. Tit-for-tat ensures that peers who contribute more receive more benefits, while peers who contribute less receive less benefits.


Another incentive of BitTorrent is rarest first, which means that peers prioritize downloading and uploading the rarest chunks in the swarm. Peers request and offer chunks that have fewer copies in the swarm, increasing their value and diversity. Rarest first ensures that peers maximize their download speed by avoiding congestion and redundancy, while also increasing the availability and resilience of the swarm.


Conclusion




Push Pull is a term used to describe how peers upload and download chunks in a BitTorrent swarm. Push Pull is influenced by several factors, such as the availability of chunks, the bandwidth of peers, the demand for the file, and the incentives of the protocol. Push Pull aims to achieve fairness and efficiency in the data exchange, allowing users to download and share files over the internet.


If you want to learn more about Push Pull and BitTorrent, you can visit the following sources:



  • [GitHub - porla/porla: A high performance BitTorrent client for servers and seedboxes]



  • [bittorrent - How to pull the torrent file from DHT? - Stack Overflow]



  • [How to Download from Pirate Bay (with Pictures) - wikiHow]




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