Comcast & BitTorrent Working Together?

dogs and cats living together... mass hysteria!
                    -Dr. Peter Venkman in Ghost Busters

In what may be a direct result of last month's FCC hearing on network management, a.k.a. Network Neutrality,  Comcast and BitTorrent have announced their intention to collaborate.  Previous to that hearing, Comcast had been interfering with BitTorrent traffic bud had denied doing so.  Now it says that by the end of 2008 it will adopt a protocol-agnostic technique of managing network capacity.  For its part, BitTorrent has acknowledged the need for network management and will offer suggestions for better ways of doing so.

Part of the problem has been that while BitTorrent's protocol is peer-to-peer, the topology of most cable networks causes all traffic to flow through the head end, even if is intended for a nearby node, and BitTorrent's algorithms don't recognize traffic that could be local to a given cable operator but instead are likely to route such traffic over the Internet backbone.  As they develop better techniques, the parties say they intend to share them with the larger Internet community.

I expect Comcast is relieved to dodge the regulatory bullet and as the joint press release states work out the issues "through private business discussions without the need for government intervention" but somehow I don't think this would have happened without the public pressure in front of the FCC.

 

FCC en banc Hearing at Harvard Law School Draws a Crowd

Fcc1024 There was a standing-room only crowd in the Ames Courtroom at the Harvard Law School
for today’s en banc hearing of the FCC on Broadband Management Practices.

As FCC Chairman Kevin Martin explained, this was an opportunity for the commission to get out into the world and talk to the people.  The contemplated action was a response to petitions by Vuze, Inc. and the Free Press alleging that Comcast had been interfering with its subscribers' use of BitTorrent by injecting counterfeit RST packets in the TCP stream.    Added to the mix was a bill filed by Congressman Ed Markey (D - MA), H.R. 5353 - the Internet Freedom Preservation Act of 2008, which would mandate more hearings like today's and empower the FCC to make regulations regulating how network operators restrict their subscribers use of the Internet.  All of the above players were present at today's hearing, along with the entire Commission and a number of expert witnesses.  The FCC also gathered comments on its Web site and recorded video contributions from members of the public, some of which were shown at the session.

Markey made a opening speech in which he reminded the audience and the commission that "the Internet is as much mine and yours as it is Verizon’s, AT&T’s or Comcast’s."  His prepared remarks are here, including a call for more competition in which he said “We want to look back years from now and be able to celebrate that this is No Country for Old Bandwidth."  He remarked that he thought that was the most appropriate Oscar reference, certainly better for today’s academic deliberations than “There Will Be Blood.”

Most of the testimony and discussion revolved around what kind of bandwidth management practices were reasonable, exactly what Comcast did, what authority the FCC had to regulate network operators, and what was the best policy to promote broadband in the US.

The issue of transparency surfaced repeatedly.  Commissioner Michael Copps accused Comcast and other network operators of making management decisions "in a black box" and recalled an old Washington adage that  “decisions made without you are usually decisions made against you.”  He lumped the Comcast actions together with other cases where operators had refused to make SMS short codes available to controversial causes or censored a web broadcast critical of Bush's stance on Iraq.

The general tone of the Commission, even before any of the testimony, was that there were definite limits on how a network operator could restrict it's subscribers access.  Several of the commissioners made reference to the commission's previous adoption of four freedoms for Internet consumers:

  • access the lawful Internet content of their choice.
  • run applications and use services of their choice
  • connect their choice of legal devices
  • competition among network providers, application and service providers, and content providers.

The first witness was Gilles BianRosa of Vuze, Inc.  Vuze uses a BitTorrent client to deliver video content licensed from its 150 partners.  BianRosa said that there have been 20,000,000 downloads of the application to date.  He described what he called a "cat and mouse game" with Comcast in which his subscribers had problems getting content but Comcast denied having done anything.  He allowed as to how Comcast was entitled to manage their network but suggested that their motives went beyond maintaining the quality of the network and were really a form of unfair competition.  As he said, Comcast was running a horse race in which it owned both the race track and a horse in the race.  He said he was willing to let the market decide but that markets only function of there are rules.  He also said he was willing to work with any reasonable management scheme, but that was difficult when the network operators were not forthcoming about what they were doing.

David L. Cohen of Comcast said it was a pleasure to be there as a participant but "hopefully not as the main course of the meal."  In what Chairman Martin later told me was Comcast's first on-record admission that they had been doing any filtering Cohen said they were using "this one tool" and only in periods of heavy traffic, in only those geographies impacted by such traffic, and only until such time as the congestion is alleviated.  He said what they were doing was delaying packets "for only a few seconds" and only in the upload direction, something he said would cause BitTorrent to send its traffic to less congested nodes.  He allowed as to how this action would be "almost imperceptable to customers" - something that BianRosa and others disputed.

As the other witnesses testified and the commission asked questions, it was clear that there were legitimate reasons for Comcast to manage traffic, but the general consensus was that needed to be done in an open and above-board manner.

David ReedAt the end of the morning's session, the Martin asked Comcast and Verizon if they thought the Commission had the authority to regulate how the operators managed their networks or if they agreed with Congressman Markey that additional legislation was necessary.  Tom Tauke of Verizon said he thought the FCC had the authority, but added that Verizon did not operate a "shared network" and thus did not engage in the tactics of which Comcast was accused.  Comcast's Cohen said he thought the Commission had not followed its own rulemaking procedures and thus could not penalize Comcast.  When asked if the Commission could levy penalties after making such rules he said he "would have to get back to them."

If the morning's session was mostly lawyers, the afternoon was mostly technologists.  David Reed, of the MIT Media Lab used a paper envelope to illustrate the difference between a IP packet and it's contents, and made the analogy that what Comcast was doing amounted to opening the envelope and messing with the packets. [Update: text of Reed's statement here] ] He said he had captured the packets on both ends of a BitTorrent connection on the Comcast network and observed how Comcast had forged RST packets so that each user's machine was fooled into thinking the packet came from the other user's machine.  As David Clark and other witnesses pointed out, the Internet has long had mechanisms for handling bandwidth shortages.  Comcast's major sin was hacking something together that violated all the rules, and then denying that they did it - not the kind of cooperation on which the Internet has depended.

Clark bemoaned the unwillingness of any of the network operators to share usage information, making it impossible to assess how widespread were the problems that Comcast complained about.  He did cite some figures he found which indicated that it cost a network operator $0.10 to deliver a gigabyte, outing the cost of provisioning the average customer at $0.50 per month.  On the other hand, watching HDTV might consume 200 GB per month, so the incremental cost of IPTV could be $20.00.  He said that all-you-can-eat pricing may not be tenable under those circumstances and that network operators may end up going to some sort of tiered pricing.

Frankstonmartin At about 5:00 pm, the group adjourned to Pound Hall for some wine and cheese.  Chairman Martin (shown at right holding a Diet Coke) stayed for several hours chatting with the participants.  (Bob Frankston in the photo.)

More on FCC Hearing on Broadband Network Management Practices - Cambridge 25 Feb 2008

Here are some more details on Monday's FCC Hearing at the Harvard Law School.

Date:     Monday, February 25, 2008
Time:     11:00 a.m. (Eastern Standard Time)
Location:  Harvard Law School
                Ames Courtroom, Austin Hall
                1515 Massachusetts Avenue
                Cambridge, MA 02138
Directions: www.law.harvard.edu/about/contact/directions.php

Streaming Audio: www.fcc.gov/realaudio 

Schedule:

11:00 am Welcome/Opening Remarks

11:45 am Technology Demonstration – Gilles BianRosa, CEO, Vuze, Inc.

12:00 pm Panel Discussion 1: Policy Perspectives

  • Marvin Ammori, General Counsel, Free Press
  • Yochai Benkler, Co-Director, Berkman Center for Internet and Society at Harvard Law School
  • Daniel E. Bosley, State Representative, Massachusetts (D - First Berkshire)
  • David L. Cohen, Executive Vice President, Comcast Corporation
  • Tom Tauke, Executive Vice President – Public Affairs, Policy and Communications, Verizon Communications
  • Timothy Wu, Professor of Law, Columbia Law School
  • Christopher S. Yoo, Professor of Law and Director, Center for Technology, Innovation, and Competition, University of Pennsylvania Law School

1:30 Lunch break

2:15 Panel Discussion 2: Technological Perspectives

  • Daniel Weitzner, Director, MIT Decentralized Information Group
  • Richard Bennett, Network Architect
  • David Clark, Senior Research Scientist, MIT, Computer Science and Artificial Intelligence Laboratory
  • Eric Klinker, Chief Technology Officer, BitTorrent
  • David P. Reed, Adjunct Professor, MIT Media Lab
  • Scott Smyers, Senior Vice President, Network & Systems Architecture Division, Sony Electronics Inc.

3:45 Closing Remarks

4:00  Post-panel discussion

5:15 Reception - Pound Hall - room 212 - John Chipman Gray room

I put links to some background reading here.

28519 Record(s) Found For Proceeding:07-52

Comments In preparation for Monday's FCC hearing in Cambridge on Net Neutrality, I hope the commissioners have reviewed all of the material submitted by interested citizens.  Of the 28,519 documents sent to the FCC Web Site, there are some insightful comments by CTOs of local software companies, but also a lot of submissions like this one:

MY PARENTS ARE ANNOYING
my parents can be soooooooooo annoying! ok so my mom is always invading my privacy, asking stupid stuff like who are you talkin to and blah blah blah. if i trip or sumthing i get a whole effing line of insults to my face. and they arent funny. and they try to suck the fun OUT of my life. they call rules "limits that must be set down". otherwise known as we hate you, we dont trust you,and you are a wild animal that must be tamed. and if my dad as at work and my mom starts being stupid she will call him. they even hit me sometimes. they talk about crap like control your voice's tone, and come back in at 7, i don't care how old you are and if its the summer! they let my 8 year sister have more freedom than me. if i try to tell them this i get spanked more than once. I HATE MY DAMN LIFE AND ITS ALL THEIR FAULT!

FCC Hearing on Broadband Network Management Practices - Cambridge 25 Feb 2008

Fcc UPDATE: the date has been changed to Monday 25 February.

The FCC announced that it will hold an en banc hearing on Broadband Network Management Practices in Cambridge, Massachusetts on February 26 25.  This is in response to complaints that certain broadband providers, e.g. Comcast, were degrading peer-to-peer traffic in violation of the FCC's Internet Policy Statement and the end-to-end principle that has been the foundation of the Internet.

Some background reading:

Time:    10:00 am EST  11:00 am EST

Location:

Harvard Law School
Ames Courtroom, Austin Hall
1515 Massachusetts Avenue
Cambridge, MA 02138

Directions

Video of Cerf/Farber Net Neutrality Debate

The video of the debate on Net Neutrality between Vint Cerf and Dave Farber, moderated by Carl Malamud, is now available, courtesy of Lauren Weinstein.

 

The exchange between Vint and Dave is not a debate between them so much as a discussion of the debate that has been taking place in the media.  These two actually agree on a lot and took the trouble to explain the controversy in a way that provides more light than heat.

More Jon Stewart on Net Neutrality

This aired on July 19, 2006 and features John Hodgman.

One exchange expresses the issue quite succinctly: 

Hodgman: Point is, with Net Neutrality, all of these packets, whether they come from a big company or just a single citizen are treated the exact same way.
Stewart: So, so, so what's the debate?  That actually seems quite fair.
Hodgman: Yes, almost too fair.  It's as though the richer companies get no advantage at all.

Later he illustrates the point by showing what happens to a packet from a less-favored source:

Hodgman

Jon Stewart on Net Neutrality

Pipes

Aired July 12, 2006.

Jon Stewart's hilarious (as usual) take on the recent Congressional hearings on Network Neutrality and Internet gambling.

These guys must work pretty hard to come up with such well-written stuff every day.

Click on the image to play at YouTube.  Also available at the Comedy Central website, although last time I tried it didn't stream nearly as well as YouTube.

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