Deep Diving into BitTorrent Locality
Event details
| Date | 07.12.2009 |
| Hour | 11:00 |
| Location |
INN-326
|
| Category | Conferences - Seminars |
A substantial amount of work has recently gone into localizing
BitTorrent traffic within an ISP in order to avoid excessive and often
times unnecessary transit costs. Several architectures and systems have
been proposed and the initial results from specific ISPs and few
torrents have been encouraging. In this work we set off to deepen and
scale our understanding of locality and its potential. Looking at
specific ISPs, we consider tens of thousands of concurrent torrents, and
thus capture a much more accurate view of ISP-wide implications that
cannot be appreciated by looking at a handful of torrents. Secondly, we
go beyond individual case studies and present results for the top 100
ISPs in terms of number of users represented in our dataset of 100K
torrents involving more than 3.5M concurrent users. We develop scalable
methodologies that permit us to process the above huge workloads and
address yet answered questions like: "what is the minimum and the
maximum transit traffic reduction across hundreds of ISPs?", "what are
the win-win boundaries for ISPs and their users?", "what is the maximum
amount of transit traffic that can be localized without requiring fine-
grained control of inter-AS overlay connections and BitTorrent's
scheduling?", "what is the impact to transit traffic from increasing the
speed of residential connections?".
Bio: Nikolaos Laoutaris is a researcher at Telefonica Research,
Barcelona. Prior to that he was a postdoc fellow at Harvard University
and a Marie Curie postdoc fellow at Boston University. He holds a Ph.D.
degree in Computer Science from the University of Athens, Greece (2004).
His main research interests are on system, algorithmic, and performance
evaluation aspects of computer networks and distributed systems with
emphasis on content distribution, overlay networks, P2P, and multimedia
communications.
Practical information
- General public
- Free
Contact
- Nedeljko Vasic