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Network and Engineering 

Comcast and BitTorrent Form Collaboration to Address Network Management, Network Architecture and Content Distribution


Comcast Corporation and BitTorrent, Inc. announced today that they will undertake a collaborative effort with one another and with the broader Internet and ISP community to more effectively address issues associated with  rich media content and network capacity management. While BitTorrent and Comcast are talking directly, they are also in discussions with other parties to help facilitate a broader dialogue and cooperation across industries. 

The Comcast and BitTorrent discussions have already produced meaningful results.  On the one hand, Comcast announced that it will migrate by year-end 2008 to a capacity management technique that is protocol agnostic.  "This means that we will have to rapidly reconfigure our network management systems, but the outcome will be a traffic management technique that is more appropriate for today's emerging Internet trends.  We have been discussing this migration and its effects with leaders in the Internet community for the last several months, and we will refine, adjust, and publish the technique based upon feedback and initial trial results," said Tony Werner, Comcast Cable's Chief Technology Officer. 

In turn, BitTorrent acknowledged the need of ISPs to manage their networks, especially during times of peak congestion.  "While we think there were other management techniques that could have been deployed, we understand why Comcast and other ISPs adopted the approach that they did initially.  Recognizing that the Web is richer and more bandwidth intensive than it has been historically, we are pleased that Comcast understands these changing traffic patterns and wants to collaborate with us to migrate to techniques that the Internet community will find to be more transparent," said Eric Klinker, BitTorrent's Chief Technology Officer. 

"Earlier this year, Comcast announced its plans for the aggressive deployment of wideband Internet services using the DOCSIS 3.0 standard, which we project will be available in up to 20% of Comcast's households by the end of this year," said John Schanz, Comcast Cable's Executive Vice President of National Engineering and Technical Operations.  "Additionally, we plan to more than double the upstream capacity of our residential Internet service in several key markets by year end 2008.  We plan to take advantage of multi-carrier technology to further increase upstream capacity for all of our broadband customers in advance of the full DOCSIS 3.0 roll out." 

BitTorrent and Comcast have also agreed to work with other ISPs, other technology companies, and the Internet Engineering Task Force, to explore and develop a new distribution architecture for the efficient delivery of rich media content.  "In the spirit of openness and fostering innovative solutions, BitTorrent will take the first step in enhancing our client applications to optimize them for a new broadband network architecture.  Furthermore, we will publish these optimizations in open forums and standard bodies for all application developers to benefit from," said Ashwin Navin, co-founder and president of BitTorrent, Inc. 

"This new architecture would enable many new and emerging applications and will be based upon an open, non-discriminatory framework that could interface with or support multiple technologies.   We believe that P2P technology has matured as an enabler for legal content distribution, so we need to have an architecture that can support it with techniques that work over all networks," said Werner. 

Both BitTorrent and Comcast expressed the view that these technical issues can be worked out through private business discussions without the need for government intervention. 

"BitTorrent and Comcast can serve consumers best by working together along with the broader ISP and Internet community to jointly develop more efficient networks and applications. This should prove to be a productive partnership that will provide consumers with a better Internet experience," said Doug Walker, CEO of BitTorrent. 

"We appreciate the recent dialogue that we have had with Bit Torrent and the progress that we have made in addressing our respective concerns.  Working together, we can deliver a truly superior experience to all of our customers," said Steve Burke, President of Comcast Cable. 

About BitTorrent

BitTorrent is the global leader for delivering high-quality files over the Internet. Millions of users worldwide are using BitTorrent's leading peer-assisted content delivery platform to publish, discover and download digital entertainment content quickly, easily and securely. Founded in 2004, BitTorrent is a privately held company backed by venture capital firms, Accel and DCM (formerly known as Doll Capital Management). The company is headquartered in San Francisco, California. For more information, visit 

BitTorrent is a trademark of BitTorrent, Inc. 

About Comcast Corporation

Comcast Corporation (Nasdaq: CMCSA, CMCSK) ( is the nation's leading provider of entertainment, information and communications products and services. With 24.1 million cable customers, 13.2 million high-speed Internet customers, and 4.6 million voice customers, Comcast is principally involved in the development, management and operation of broadband cable systems and in the delivery of programming content. 

Comcast's content networks and investments include E! Entertainment Television, Style Network, The Golf Channel, VERSUS, G4, PBS KIDS Sprout, TV One, ten Comcast SportsNet networks and Comcast Interactive Media, which develops and operates Comcast's Internet business. Comcast also has a majority ownership in Comcast-Spectacor, whose major holdings include the Philadelphia Flyers NHL hockey team, the Philadelphia 76ers NBA basketball team and two large multipurpose arenas in Philadelphia.