Articles By James Cowie

I'm writing this blog entry from the campground at Vermont's beautiful Quechee Gorge, where I took the kids after work. Yes, Renesys is located smack in the middle of some of the nicest hiking, camping, and climbing on earth. No, you shouldn't move here, Northern New England has enough out-of-staters already, thanks. Unless, that is, you are an unusually talented web developer, have worked as a peering coordinator, or know the Internet transit industry inside-out, in which case you should send me your CV, posthaste. thanks, --jim

Here We Go Again.

Imagine an innocent BGP message, sent from a random small network service provider's border router somewhere in the world. It contains a payload that is unusual, but strictly speaking, conformant to protocol. Most of the routers in the world, when faced with such a message, pass it along. But a few have a bug that makes them drop sessions abruptly and reopen them, flooding their neighbors with full-table session resets every time they hear the offending message. The miracle of global BGP ensures that every vulnerable router on earth gets a peek at the offending message in under 30 seconds. The global routing infrastructure rings like a bell, as BGP update rates spike by orders of magnitude in the blink of an eye. Links congest. Small routing hardware falls over and dies. It takes hours for things to return to normal.

If you put 65 million people in a locked room, they're going to find all the exits pretty quickly, and maybe make a few of their own. In the case of Iran's crippled-but-still-connected Internet, that means finding a continuous supply of proxy servers that allow continued access to unfiltered international web content like Twitter, Gmail, and the BBC.

We've received enough interest about our previous notes on Iranian Internet connectivity that I wanted to give a brief update, and some reflections.

Seventy-five years ago today, on May 29th, 1934, Egyptian private radio stations fell silent, as the government shut them down in favor of a state monopoly on broadcast communication. Egyptian radio "hackers" (as we would style them today) had, over the course of about fifteen years, developed a burgeoning network of unofficial radio stations. They offered listeners an unfiltered, continuous mix of news, gossip, and live entertainment from low-powered transmitters located in private houses and businesses throughout Cairo.

It couldn't last. After two days of official radio silence, on May 31st, official state-sponsored radio stations (run by the Marconi company under special contract) began transmitting a clean slate of government-sanctioned programming, and the brief era of grass-roots Egyptian radio was over.

New York.--Senator Robert Bulkley, of Ohio, has made a proposal which is certainly worth considering.

It is as clear as daylight that, to bring about any sort of recovery, somebody must start some new sort of business or some extension of an old business.

It is also clear that nobody is in sight right now who has any notion of doing that — at least not in time to do this country any good as a depression cure.

There is one business which is a public business but is also a private one. This is the road-building business. The Government pays for the roads and hires the contractors. But the roads are built usually by private contractors and with materials furnished by private manufacturers.

If there is one thing needed in this country now, in view of the development of the automobile, it is express highways running east and west and north and south. Why, therefore, cannot the Government go into the business of building these highways?

Tough Times for Local Exchange Carriers

This week, the headlines seem to be full of fresh doom and gloom for wireline carriers, who employ people in every congressional district across America. Sooner or later, someone is going to call for Congress to tap some of the hundreds of billions in 2009 economic stimulus to help the LECs through troubled times, save lots of jobs, and preserve the way we do business in our critical last-mile communications infrastructure.

Is this wise? Is there a better way?