Comments on: Pakistan Blocks YouTube http://www.guamnesty.org.uk/blog/2008/02/pakistan-blocks-youtube/ Protect the human! Wed, 04 Aug 2010 19:00:28 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: robert http://www.guamnesty.org.uk/blog/2008/02/pakistan-blocks-youtube/comment-page-1/#comment-203 robert Mon, 25 Feb 2008 18:52:55 +0000 http://www.guamnesty.org.uk/blog/2008/02/pakistan-blocks-youtube/#comment-203 If you want to see what happened, look at instructions given in <a href="http://slashdot.org/comments.pl?sid=465572&cid=22546066">this post</a> over on slashdot. <blockquote>Head over to <a href="http://bgplay.routeviews.org/bgplay/">this site</a>. It visualizes the BGP routes between different AS's. Click 'Start BGPlay'. The prefix in which YouTube lives is 208.65.153.0/24. Set the start time for about 24 Feb 2008 10:00, and the end time for about 25 Feb 2008 03:00 (times are UTC). Start the simulation. You'll see a bunch of ASNs. Two have red circles around them. You can get their name by clicking on the number. On the left is YouTube, and on the right is Pakistan Telcom. Click play and watch what happens. For those too lazy to actually watch this: All the routes destined for YouTube head towards Pakistan Telcom instead. Then, midway through, you see PCCW get wise and shut down those routes, and everyone slowly starts finding the actual YouTube. It's pretty neat to watch.</blockquote> If you want to see what happened, look at instructions given in this post over on slashdot.

Head over to this site. It visualizes the BGP routes between different AS’s. Click ‘Start BGPlay’. The prefix in which YouTube lives is 208.65.153.0/24. Set the start time for about 24 Feb 2008 10:00, and the end time for about 25 Feb 2008 03:00 (times are UTC). Start the simulation.

You’ll see a bunch of ASNs. Two have red circles around them. You can get their name by clicking on the number. On the left is YouTube, and on the right is Pakistan Telcom. Click play and watch what happens.

For those too lazy to actually watch this: All the routes destined for YouTube head towards Pakistan Telcom instead. Then, midway through, you see PCCW get wise and shut down those routes, and everyone slowly starts finding the actual YouTube. It’s pretty neat to watch.

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