nanog mailing list archives
Re: Comcast blocking p2p uploads
From: Eric Spaeth <eric () spaethco com>
Date: Fri, 19 Oct 2007 18:40:46 -0500
Sean Figgins wrote:
I have previous experience with Sitara QoS devices that sported that same feature. The problem was that the relay would only shut if the box lost power or if it received a software command to disengage. We had numerous problems where the packet processing engine would become overwhelmed and lock up; the relay stayed engaged because the box retained power and the software driver was rendered useless once the whole OS locked up. Maybe it's just me, but when a vendor is concerned enough about their box failing that they work out these elaborate bypass options it doesn't inspire a lot of confidence in the stability of the product. IMHO, wedging a 99.5% available piece of hardware between your 99.99+% available network hardware is just bad karma.Eric Spaeth wrote: > With rate-shaping they would need to have the P2P identification widget > in-line with the data path to be able to classify and mark traffic so > that it can be queued/throttled appropriately.The Sandvine, in particular, is designed to be placed in-line like this. It does, however, deploy a technology to shunt the traffic through the device in the event that the server craters. Many network devices do this now.
-Eric
Current thread:
- Re: Comcast blocking p2p uploads, (continued)
- Message not available
- Re: Comcast blocking p2p uploads Steven M. Bellovin (Oct 19)
- Re: Comcast blocking p2p uploads Eric Spaeth (Oct 19)
- Message not available
- Re: Comcast blocking p2p uploads Daniel Senie (Oct 19)
- Re: Comcast blocking p2p uploads Curtis Doty (Oct 19)
- Re: Comcast blocking p2p uploads Jeroen Massar (Oct 19)
- Re: Comcast blocking p2p uploads Marshall Eubanks (Oct 19)
- Re: Comcast blocking p2p uploads Joel Jaeggli (Oct 19)
- Re: Comcast blocking p2p uploads Sean Figgins (Oct 19)
- Re: Comcast blocking p2p uploads Eric Spaeth (Oct 19)
- Re: Comcast blocking p2p uploads William Allen Simpson (Oct 20)
- Re: Comcast blocking p2p uploads Daniel Senie (Oct 20)
- Re: Comcast blocking p2p uploads Steven M. Bellovin (Oct 20)
- Re: Comcast blocking p2p uploads Marshall Eubanks (Oct 20)
- RE: Comcast blocking p2p uploads Justin M. Streiner (Oct 19)