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Old 13-03-2009, 20:55   #284
BenMcr
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Re: Legal action taken against Virgin Media throttling practices

Quote:
Originally Posted by Mike_A View Post
I understand that's part of it, but I have been given to believe also hardware gating logic and software which both intercepts and has the effect of intercepting packets.
Hmm. From the way I understood it - no.

Virgin have the ability to send whatever config profile they like to your modem - as the speed uplifts show.

So I always assumed that this is all they did - you hit X threshold they send Y config profile which sets your modem to Z speed. After the time period is up they then send the config profile that matches your original tier.

I'm pretty sure people have posted on here that that is the case - because you can see it in the modem pages

Again - this was just how I think it works.

---------- Post added at 21:45 ---------- Previous post was at 21:38 ----------

If anyone wants go through it and tell us - there is a full 'Subscriber Traffic Management for the Cisco CMTS Routers' manual here http://www.cisco.com/en/US/docs/ios/...sbr_tfmgt.html

But from a quick scan (and if I understand it correctly) it seems to use QoS profiles rather than any DPI

---------- Post added at 21:55 ---------- Previous post was at 21:45 ----------

In fact part of it says:

The STM feature enables service providers to identify and control subscribers who exceed the maximum bandwidth allowed under their registered quality of service (QoS) profiles. STM works as a low CPU alternative to Network-Based Application Recognition (NBAR) and access control lists (ACLs).
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