Top-BT: An Infrastructure Free BitTorrent Client with Fast Download Time and Less Internet Traffic

最新推荐文章于 2025-11-30 13:47:28 发布

最新推荐文章于 2025-11-30 13:47:28 发布 · 319 阅读

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#运维 #python

Top-BT是一款基于BitTorrent协议的客户端软件，它能够在实现快速下载的同时显著减少跨ISP及总体产生的互联网流量。通过测量到其他节点的实际路径并选择距离较近的节点进行连接，Top-BT能够有效降低网络负载。

来源： http://www.cse.ohio-state.edu/~sren/topbt/

Top-BT: An Infrastructure Free BitTorrent Client with Fast Download Time and Less Internet Traffic

Introduction

Top-BT is a BitTorrent client that downloads files fast butgenerates cross-ISP and total induced Internet traffic much less than other popular BitTorrent clients (e.g., Azureus, BitComet, torrent etc. based on original BitTorrent choking algorithm, and BitTyrant). It downloads fast because it tries to use low upload cost to gain high download rate. It generates less traffic because it actively measures routing paths to its peers, and uses measured data to choose close peers to unchoke.

Top-BT is implemented based on BitTornado and LH-ABC using Python.

News

08/24/2008: Top-BT 1.0 has been released to the public. 10/05/2008: Top-BT 1.1 has been released. Top-BT is now based on LH-ABC code with a more friendly user interface. We provide Linux (Unix), Windows, and source code.

Q&A

Q: How does Top-BT differ from Ono and P4P?

A: Ono utilizes existing CDN infrastructures to localize hosts, so that a host can choose close peers to connect to. Ono also has a few challenges: 1) when there are many native BT clients online, an Ono client is not able to accurately tell its distances to those native clients, because they do not localize themselves; 2) although a single Ono client sends only 32K DNS traffic per day, if there are 1 million Ono clients online simultaneously, it can cause 32G DNS trafic on CDN nameservers. This can trigger CDN to filter Ono DNS traffic.

On the other hand, P4P is a framework through which ISPs can provide information to applications, so that applications can optimize their performance. P4P requires ISPs to widely deploy their frameworks. Another challenge for P4P is, what type of information ISPs should provide to satisfy different applications quality requirements.

In comparison, our Top-BT client: 1) does not require modification to existing Internet infrastructure, and is a completely user-level tool; and 2) it runs well even when all the rest clients are native BT-clients; and 3) it directly measures distances to other peers, instead of using coordinates to calculate distances.
Q: How to turn on Top-BT feature?

A: Under "File" menu, "Preferences", "Network" tab, "Advanced Network Settings", there is a "TopBT" field. Drag down to choose either "Enabled (Link-Hop Aware)" or "Enabled (AS-Hop Aware)".

Code Release