BitTorrent is a very scalable file sharing protocol that utilizes the upload bandwidth of peers to offload the original content source. With BitTorrent, each file is split into many small pieces, each of which may be downloaded from different peers. While BitTorrent allows peers to effectively share pieces in systems with sufficient participating peers, the performance can degrade if participat...

Although the BitTorrent protocol incentivizes sharing by increasing a peer’s download rate, tools have demonstrated that the tit-for-tat mechanism alone is insufficient to prevent peers from downloading content without reciprocation. We propose an enhancement to the BitTorrent protocol, called Leechlock, which uses globally shared tables to track peers’ ratings over time within the swarm. The s...

OF THE PROJECT REPORT Multiple Identities in BitTorrent Networks

BitTorrent is the most popular P2P content delivery application where individual users share various type of content with tens of thousands of other users. The growing popularity of BitTorrent is primarily due to the availability of valuable content without any cost for the consumers. However, apart from required resources, publishing (sharing) valuable (and often copyrighted) content has serio...

Software-Defined Networks’ technologies introduce programmatic ways to reorganize the network logical topology. To achieve this, the switches in the network interact with a set of controllers, these controllers can dynamically update the switches configuration based in received events. A possible practical field of use of Software-Defined Networks’ is the one called Reactive Routing. On Reactiv...

In recent years, BitTorrent has emerged as a very popular and scalable peer-to-peer file distribution mechanism. It has been very successful at distributing large files quickly and efficiently without overwhelming the capacity of the origin server, even under extreme flash crowd conditions. In this paper, we present a simulation-based study of BitTorrent. The goal is to deconstruct the BitTorre...

Private BitTorrent community, known as “BitTorrent Darknet” or “Private Tracker (PT)”, has received much attention in the research literature recently. Different from public BitTorrent community, PT can only be accessed by its registered members, and it can provide ultra-high downloading speed due to its effective Sharing Ratio Enforcement (SRE) incentive mechanism which stimulates members to c...

BitTorrent, the immensely successful file swarming system, supports content bundling: a common strategy by which publishers package multiple related files and disseminate them via a single larger swarm. It has been reported that bundling in BitTorrent is wide-spread, currently being done in a subjective and manual manner by individual publishers. This paper is motivated by the following questio...