NetEqualizer News Blog

This is the second article in our series. Our first was a Bill of Rights dictating the etiquette of software updates. We continue with a proposed Bill of Rights for consumers with respect to their Internet service.

1) Providers must divulge the contention ratio of their service.

At the core of all Internet service is a balancing act between the number of people that are sharing a resource and how much of that resource is available.

For example, a typical provider starts out with a big pipe of Internet access that is shared via exchange points with other large providers. They then subdivide this access out to their customers in ever smaller chunks — perhaps starting with a gigabit exchange point and then narrowing down to a 10 megabit local pipe that is shared with customers across a subdivision or area of town.

The speed you, the customer, can attain is limited to how many people might be sharing that 10 megabit local pipe at any one time. If you are promised one megabit service, it is likely that your provider would have you share your trunk with more than 10 subscribers and take advantage of the natural usage behavior, which assumes that not all users are active at one time.

The exact contention ratio will vary widely from area to area, but from experience, your provider will want to maximize the number of subscribers who can share the pipe, while minimizing service complaints due to a slow network. In some cases, I have seen as many as 1,000 subscribers sharing 10 megabits. This is a bit extreme, but even with a ratio as high as this, subscribers will average much faster speeds when compared to dial up.

2) Service speeds should be based on the amount of bandwidth available at the providers exchange point and NOT the last mile.

Even if your neighborhood (last mile) link remains clear, your provider’s connection can become saturated at its exchange point. The Internet is made up of different provider networks and backbones. If you send an e-mail to a friend who receives service from a company other than your provider, then your ISP must send that data on to another network at an exchange point. The speed of an exchange point is not infinite, but is dictated by the type of switching equipment. If the exchange point traffic exceeds the capacity of the switch or receiving carrier, then traffic will slow.

3) No preferential treatment to speed test sites.

It is possible for an ISP to give preferential treatment to individual speed test sites. Providers have all sorts of tools at their disposal to allow and disallow certain kinds of traffic. There should never be any preferential treatment to a speed test site.

4) No deliberate re-routing of traffic.

Another common tactic to save resources at the exchange points of a provider is to re-route file-sharing requests to stay within their network. For example, if you were using a common file-sharing application such as BitTorrent, and you were looking some non-copyrighted material, it would be in your best interest to contact resources all over the world to ensure the fastest download.

However, if your provider can keep you on their network, they can avoid clogging their exchange points. Since companies keep tabs on how much traffic they exchange in a balance sheet, making up for surpluses with cash, it is in their interest to keep traffic confined to their network, if possible.

5) Clearly disclose any time of day bandwidth restrictions.

The ability to increase bandwidth for a short period of time and then slow you down if you persist at downloading is another trick ISPs can use. Sometimes they call this burst speed, which can mean speeds being increased up to five megabits, and they make this sort of behavior look like a consumer benefit. Perhaps Internet usage will seem a bit faster, but it is really a marketing tool that allows ISPs to advertise higher connection speeds – even though these speeds can be sporadic and short-lived.

For example, you may only be able to attain five megabits at 12:00 a.m. on Tuesdays, or some other random unknown times. Your provider is likely just letting users have access to higher speeds at times of low usage. On the other hand, during busier times of day, it is rare that these higher speeds will be available.

There is now a consortium called M-Lab which has put together a sophisticated speed test site designed to give specific details on what your ISP is doing to your connection. See the article below for more information.

Related article Ten things your internet provider does not want you to know.

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