Quote:
Originally Posted by roughbeast
I'm not yet convinced by your view on the sharpness of the onset. On my TBB graph there was a normal profile until something like 7.50 pm. By 8.15 pm the blip was at its peak. Admittedly the decline at the other end of the blip was virtually instant, but I would have expected a much more gradual onset if collective human behaviour is the only cause. ie thousands of users caning their connections soon after they get home from work somewhere around 6.00 pm.
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I've said so before, and iggi's said it on TBB. That's not how it works. Read this post:
http://forums.thinkbroadband.com/vir...y-tonight.html
For the lazy, this is what "natural" congestion saturating a link normally looks like:
On O2's core network
On VM's core network
On VM's edge/border (the last "Altroto" incident):
This is an example Thinkbroadband posted on their own FAQ page as "A classic example of peak time [congestion] affecting latency, and suggests the provider in question is running its links at very close to capacity"
Another example from Thinkbroadband's own FAQ, this time "what effect a heavily congested link from an exchange to the wider internet can have" (in this case Sky):
In comparison to your graph:
[img]Download Failed (1)[/img]