Slashdot Mirror


Net Neutrality vs. Technical Reality

penciling_in writes "CircleID has a post by Richard Bennett, one of the panelists in the recent Innovation forum on open access and net neutrality — where Google announced their upcoming throttling detector. From the article: 'My name is Richard Bennett and I'm a network engineer. I've built networking products for 30 years and contributed to a dozen networking standards, including Ethernet and Wi-Fi. I was one of the witnesses at the FCC hearing at Harvard, and I wrote one of the dueling Op-Ed's on net neutrality that ran in the Mercury News the day of the Stanford hearing. I'm opposed to net neutrality regulations because they foreclose some engineering options that we're going to need for the Internet to become the one true general-purpose network that links all of us to each other, connects all our devices to all our information, and makes the world a better place. Let me explain ...' This article is great insight for anyone for or against net neutrality."

18 of 251 comments (clear)

  1. No, he's talking about replacing TCP/IP. by khasim · · Score: 4, Insightful
    I do not have the experience he has, but I see some strangeness in the phrases he uses.

    The Internet's traffic system gives preferential treatment to short communication paths. The technical term is "round-trip time effect." The shorter your RTT, the faster TCP speeds up and the more traffic you can deliver.
    Yes. And? Do I really want the server next to me to be as slow as the server in Tokyo?

    The Internet's congestion avoidance mechanism, an afterthought that was tacked-on in the late 80's, reduces and increases the rate of TCP streams to match available network resources, but it doesn't molest UDP at all. So the Internet is not neutral with respect to its two transport protocols.
    I'm not sure about this. But he's the expert so I'll accept his claim. But wouldn't it be easier to add UDP management capabilities to the existing structure than any of the alternatives?

    VoIP wants its packets to have small but consistent gaps, and file transfer applications simply care about the time between the request for the file and the time the last bit is received. In between, it doesn't matter if the packets are timed by a metronome or if they arrive in clumps. Jitter is the engineering term for variations in delay.
    Wasn't that what Asynchronous Transfer Mode (ATM) was supposed to address?

    The Internet is non-neutral with respect to applications and to location, but it's overly neutral with respect to content, which causes gross inefficiency as we move into the large-scale transfer of HDTV over the Internet.
    Yes. And? So grabbing a huge file off of the server next to me is more efficient than a VOIP call to Tokyo. I'm not seeing the problem yet.
    1. Re:No, he's talking about replacing TCP/IP. by hobbit · · Score: 4, Insightful

      In the second case, he's talking about Bob Metcalf (the nominal inventor of ethernet...) It's particularly ridiculous to talk about how increasing bandwidth will not solve problems in the face of Ethernet, which has consistently beaten off all other comers by piling on the bandwidth even though its link utilisation is piss-poor...
      --
      "Wise men talk because they have something to say; fools, because they have to say something" - Plato
    2. Re:No, he's talking about replacing TCP/IP. by johndfalk · · Score: 5, Insightful

      Just forget about Multicast, it's a dead-end idea. Not because it's technically flawed (actually, it works pretty nicely), but because it ignores economics. Except that IPv6 uses multicast for pretty much everything. As the telco's upgrade to IPv6 they will be forced into using multicast. The telco's want to move your data as efficiently and at the lowest cost to them while still charging you the same price. See: http://en.wikipedia.org/wiki/IPv6

      To add insult to injury, this technology works properly only if all the hops between you and your destination have deployed it correctly. So a bunch of telcos who's primary business is selling bandwidth must go trough hoops to make your data transfer more efficient. No, it's not gonna happen. Once again incorrect. You can tunnel multicast through devices that do not support it by having multicast point to point servers. We did this at I2 all the time to reach schools that weren't on the Abilene backbone. You would setup a server at the closest place that could receive multicast and then one at the destination thus reducing congestion.

      To be successful, Multicast must be completely redesigned from an economical perspective such as to provide a immediate benefit for the provider that uses it (if this is at all possible), without reducing his revenue potential. It already does by reducing their costs associated with routing traffic.
  2. Multicast? by Anonymous Coward · · Score: 4, Insightful

    AFAIK services like FiOS and U-verse handle HDTV over IP by making the breakout box an IP multicast client.

    He completely ignores multicast in the paragraph about HTDV being trouble for the Internet, and someone should at least explain why it's not relevant. Otherwise it kind of sinks his battleship w/r/t that argument, IMO.

  3. Re:I hope he's not referring to QoS... by A+beautiful+mind · · Score: 5, Insightful

    Because pretty much every isp is part of a vertical monopoly and QoS provides a convenient excuse to leverage their monopoly in one market to push their product in another.

    --
    It takes a man to suffer ignorance and smile
    Be yourself no matter what they say
  4. I Oppose The Argument Against Net Neutraility Laws by Nom+du+Keyboard · · Score: 5, Insightful
    I am in favor of Net Neutrality regulations and laws, not because I like regulations and laws (I don't), but that I am finding them necessary in this case.

    We supposedly have Truth in Advertising laws already on the books, but super-fast, all-you-can-eat, Internet connections are still being advertised. I'd start by applying the existing law to those claims.

    I'd like to be sold a truthful amount of bandwidth (DSL tends to be more honest in this area than cable), and not some inflated peak amount that I can only hit when going to the cable sponsored local bandwidth tester site. And when I have that honest amount of bandwidth available to me, I want to be the one to set the QoS levels of my traffic within that bandwidth amount - not the cable company. When I know what I have available to me, then I can best allocate how to use it.

    First the cable companies started killing BT, and other filesharing apps to some lesser degree. I believe that to have been a Red Herring. When that was complained loudly about they offered to just cap usage in general, instead of limiting certain bandwidth-intensive applications.

    Who does this benefit? The cable companies, of course. Think of the business they're in. They deliver video. But so do a lot of other people on the Internet. Kill everybody else's video feeds because that is the high bandwidth application for the rest of us and pretty soon you'll only be able to receive uninterrupted HD video over your broadband connection from your local cable company. They will become a monopoly in video distribution (and charge every provider for distributing their videos), and all because we insisted that they throttle all traffic equally on their vastly oversold networks.

    All they're waiting for is DOCSIS 3.0 to roll out so that they can promise us even more bandwidth that we can't use since they won't even let us used our promised current bandwidth under DOCSIS 2.0. A royal screwing is on its way if your cable ISP in particular isn't clamped down on hard by the federal government by way of the FCC.

    And why does it have to be the federal government and the FCC. Because the cable companies have already managed to get all local regulation preempted by the federal government to avoid more stringent local rules, so the feds are the only ones left who are allowed to do it!

    --
    "It's the height of ridiculousness to say for those 9 lines you get hundreds of millions."
  5. Missing the point? by JustinOpinion · · Score: 5, Insightful
    His analysis is in many ways good... but seems ridiculously idealistic. He emphasises:

    Where do we turn when we need enhancements to Internet protocols and the applications that use them? Not to Congress, and not to the FCC. ... Engineers solve engineering problems.
    (Emphasis in original.)

    Probably most of us agree with that statement in principle. The problem is that the various players in this (users, content providers, and network operators) do not have their objectives aligned. Thus, the engineers for the network operator will come up with a solution (e.g. throttling) that solves the network company's problem (users using too much of the bandwidth they (over)sold), but the engineers working for the users (e.g. people writing P2P apps) will engineer for a different objective (maximum transfer rates), and will even engineer workarounds to the 'solutions' being implemented by the network.

    The problem is thus that everyone is engineering in a fundamentally adversarial way, and this will continue so long as the objectives of all parties are not aligned. Ideally, legislation would help enforce this alignment: for instance, by legally mandating an objective (e.g. requiring ISPs to be transparent in their throttling and associated advertising), or funding an objective (e.g. "high-speed access for everyone"), or by just making illegal one of the adversarial actions (e.g. source-specific throttling).

    This is not purely an engineering question. The networks have control of one of the limited resources in this game (the network of cables already underground; and the rights required to lay/replace cables), and this imbalance in power may require laws to prevent abuse. It's not easy to create (or enforce) the laws... and ideally the laws would be informed by the expertise of engineers (and afford ways for smarter future solutions to be implemented)... but suggesting that we should just let everyone 'engineer' the solution misses the mark. Whose engineers? Optimizing for what goal? Working under what incentives?

    Put more simply: engineering is always bound by laws.
  6. No net neutrality these past 5 years has meant... by Kohath · · Score: 4, Insightful

    No net neutrality these past 5 years has meant ... what exactly? What is the horrible problem we've all had to endure because the government hasn't forced ISPs (against their will) to operate in "the preferred way"?

  7. I'm not sure if I like his alternative by Whuffo · · Score: 4, Insightful
    While some good points are made about the current state of the internet and how technical improvements could be made - his article lost credibility at the point where he states that the proper way to correct the problems is for "industry" to do it.

    Of course, the "industry" he's talking about are the corporations that control large chunks of the infrastructure. As we've established time and time again, those corporations aren't acting in the public interest. Their only interest is in what makes their corporation the largest profit. To those interests, blocking competing services or forcing popular websites to pay more to stay online are quite reasonable things to do.

    This is why net neutrality is such an important idea. Look at what has been accomplished so far with our "ad hoc" arrangement of computers connected to a crazy quilt of networks. All that you see is just the beginning - but a better future will never come to pass if the corporate interests are allowed to filter / segregate / block network traffic.

    Think about it for a minute: consider AT&T. They own a substantial amount of internet infrastructure and they're also the major telephone company. When they look at Skype and discuss how to limit the loss of business to this competitor - you'd better believe they consider blocking VOIP on the backbone. Call it a benefit to the customer and put a competitor out of business; another good day in corporate headquarters.

  8. Companies can't be trusted by kherr · · Score: 4, Insightful

    Yes, there are technical reasons to shape traffic to optimize network flow. But the problem is that the large ISPs are using business, not technical, reasons to determine the network traffic policies. If companies like Comcast, Time Warner and Virgin Media could be trusted to base network design on technical issues, that'd be a nice utopia.

    But we know these companies are instead targeting packets that they see as business competitors, so they are not making sound technical decisions. I say it's better to make it harder for a perfect network than to allow corporate interests to balkanize the internet for their greedy purposes.

  9. Net neutrality is a matter of antitrust by BlueParrot · · Score: 5, Insightful

    The main issue here is not weather companies double charge for bandwidth or if they charge per use or don't offer this or that service, the issue is that if you allow a situation where a company like AT&T can make a deal with Microsoft to prioritize their traffic, then it will eventually end up in a situation where you get a cartel of companies controlling that keep competing smaller ISPs and content providers out of the market by artificially degrading their connections.

    Furthermore because the communications infrastructure is partially government funded, and as the radio frequencies are government controlled through the FCC , the "free market" argument doesn't hold water. There are numerous barriers to entry into the ISP market, both government imposed as well as technical ones, and thus coercive monopolies will be able to form unless actively restrained by the government.

    This doesn't necessarily say much about HOW you should regulate the market, but it pretty much implies that simply leaving ISPs to screw over customers and smaller competitors is a big no-no. Completely free unregulated markets only work when there are low barriers to entry, many suppliers, no external costs or benefits, perfect customer insight into the market, completely homogeneous and equivalent services being offered, zero cost of switching supplier, and no barriers to trade. The number of markets in which that applies can be counted on fewer hands than most people have.

  10. Net Neutrality is about censorship, not QoS. by Zombie+Ryushu · · Score: 4, Insightful

    Look, the fact is that the telcos are engaged in criminal conspiracy to censor the Internet. Of course tiered rates for bandwidth usage will always be there. Thats been the way of the world since Broadband began. Anti-Net Neutrality is about WHAT you can access, not how fast you can access it, people who advocate against net neutrality are advocating FOR Internet censorship.

  11. Re:No net neutrality these past 5 years has meant. by Anonymous Coward · · Score: 5, Insightful

    ISPs have been operating "the preferred way" out of convention, in keeping with the norms of the Internet, for some time now. But they have only recently signaled their intent to deviate from historical principles in order to pursue additional sources of revenue.

    Their intended path optimizes the Internet in their own favor, and works against the Internet as a whole. They're saying, "Yes, we like the Internet. But you're going to like our take on the Internet even better, want it or not." They're bundling "their way" over what should be a common carrier type situation.

    So, it is like asking, "No net neutrality for telephone calls over the past 5 years has meant... what exactly?" Nothing, because the telephone companies have kept with the status quo, and not introduced 'features' that degrade the overall value of the network. Were they to announce an intent to do this, you'd see telephone neutrality legislation bounced around.

    "But we don't need telephone neutrality legislation! If you legislate the telephone system, then it will kill innovation!" See? We're blaming the wrong folks here. It isn't the customers or the legislators. It is the carrier rocking the boat, and then crying foul when people try to address their money making schemes.

  12. Re:No net neutrality these past 5 years has meant. by Lunatrik · · Score: 4, Insightful

    Comcast and Bittorrent? Deep Packet Inspection commencing by Time Warner and Comcast? And, Today on slashdot, Verizon preventing access to a chunk of usenet?

    Either your trolling or live in a cave.

  13. Bang-on. by weston · · Score: 4, Insightful

    This is the important distinction. It's not traffic type neutrality that's the essential character of an appropriately neutral net, it's source-destination neutrality.

    (A non-type-neutral net has some of its own problems, but not the same ones as a non-source-destination-neutral net, and there's a good argument that the latter is more important.)

  14. Comment removed by account_deleted · · Score: 4, Insightful

    Comment removed based on user account deletion

  15. Re:It's not reality, it's all a lie by Omestes · · Score: 5, Insightful

    limiting of certain types of traffic or certain pages (like the alt.* section of usenet) is fine.. if the ISP is upfront about it. If they had a cheap plan that limited you like that, and an expensive plan that had no restrictions, I'd be fine with it.

    I'd like to add something; they may do this IF I HAVE ANOTHER VIABLE CHOICE. If ISPs didn't operate as minor monopolies, I'd be fine with them doing whatever (if they are honest about it), as long as I can find another service who doesn't.

    --
    A patriot must always be ready to defend his country against his government. -edward abbey
  16. duopoly by falconwolf · · Score: 5, Insightful

    (That's more than 50 per state, so if you don't patronize one, it's not their fault.) That's hardly a duopoly situation.

    It is a duopoly if you only have 2 choices for broadband, and many don't have 2 choices. If you're lucky you have a choice for cable and dsl, many can't get either, and even if you can sign up with a third party ISP they still use either the cableco's or telco's lines.

    Rather, it's greed on the part of some bandwidth hogging users

    No it's greed on the part of access providers. Nothing made them offer unlimited access plans, but once people took them up on the offer they are crying. It's nothing more than offering more than they can provide and that's a problem of their own making.

    Now, if they want to start charging some people more for using more bandwidth then I want them to pay back the billions of taxpayer dollars they got in subsidies to build out their infrastructure. They took the taxpayers' money and used it to boost their bottom line without doing what they were given the money do to.

    Falcon