Directly from the Newsgroups.
QUOTED :
" Hi,
I know there have been many queries regarding STM (Traffic Management), and below is the official statement regarding changes to the STM policy.
If you have any questions or comments, please can I ask that you post these in the Feedback group (virginmedia.feedback) to keep the support groups clear for the team to respond to service affecting issues. This has been cross-posted to feedback.
Thankyou.
STM Statement:
As part of our continued efforts to improve our customer's broadband experience we are continuing to trial measures which will more efficiently and pro-actively manage network traffic.
As part of our continued efforts to improve our customer's broadband experience, we are making changes to the current Traffic Management Policy within certain trial regions.
This updated policy will be trialed within the following regions
Preston, Wigan, Blackpool, Camden, Dalston, Enfield and Haringey.
These measures are based on policies that detect traffic patterns that are deemed potentially abnormal and apply traffic management rules to ensure that other customers are not adversely affected by this traffic.
The trial aims to prevent or reduce the effects of a minority of users abusing the network and preventing the majority of subscribers from having the network performance they desire.
For the vast majority of customers, upwards of 95% of the base, their experience will be a more consistent speed (both upload and download).
Those who have the policies applied to their connection will
experience their download / upload speed being constrained (less than 5% affected). Breach of acceptable use policy may lead to these policies being applied.
These optimisation policies are being trialed during the following times where the potential for abnormal traffic has been identified as having the greatest adverse impact on our customers' experience.
10am - 3pm Download only
4pm - 9pm Download
3pm - 8pm Upload
During these times the following thresholds will be applied for upstream and downstream.
10am - 3pm Download
Size M: 900Mb
Size L: 2400Mb
Size XL: 6000Mb
4pm - 9pm Download
Size M: 450Mb
Size L:1200Mb
Size XL: 3000Mb
3pm - 8pm Upload
Size M: 200Mb
Size L: 700Mb
Size XL: 1400Mb "