Posts tagged: Broadband

Broadband Network Management – CUSystems

By , April 7, 2008 11:13 am

Broadband Network Management – CUSystems
New traffic shaping can disrupt a Comcast Internet connection

Recently, it has been observed that Comcast is disrupting TCP connections using forged TCP reset (RST) packets [1]. These reset packets were originally targeted at TCP connections associated with the BitTorrent file-sharing protocol. However, Comcast has stated that they are transitioning to a more “protocol neutral” traffic shaping approach [2]. We have recently observed this shift in policy, and have collected network traffic traces to demonstrate the behavior of their traffic shaping. In particular, we are able (during peak usage times) to synthetically generate a relatively large number of TCP reset packets aimed at any new TCP connection regardless of the application-level protocol. Surprisingly, this traffic shaping even disrupts normal web browsing and e-mail applications.

Well that just makes me want to go right out and get me a Comcast Internet connection, NOT! ๐Ÿ‘ฟ

I’ve noticed several of the sites I check regularly have been having problems with dropped connections in the past few days. Guess either they are on Comcast or the connection is being routed through the Comcast net. Either way it’s a REAL pain in the arse and I’d thing that making folks reload time after time to finally get a connection would create MORE traffic than just letting it all through the first time. ArseHats! ๐Ÿ‘ฟ

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