Ok sorry, you didn't understand. This is a how a tool like sandvine at the ISP level work: they have packets sniffers (packets get exchanged between you and other Gnutella connections) that search for specific P2P packets like Gnutella ones. Once they recognized them, they limit the traffic coming in and out to say 6 KB/s (this is configurable by your ISP). However, the internet packets to surf the web for exemple are not throttled by the system that's why you get 50KB/s on internet downloads. That way your ISP thinks they're cutting costs because routing bandwidth between different ISP of different countries is expensive (P2P constitutes 60% of all internet traffic).

Call your ISP about P2P blocking and especially about gnutella. If they can't react correctly change ISP. Loosing customers will force them to not use those P2P killers.

Ciao

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