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Old 17-01-2012, 18:09   #1030
Chrysalis
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Re: Virgin Media to Double Broadband Speed

Quote:
Originally Posted by qasdfdsaq View Post
I think that's the idea of moving to 8 downstreams - doubling DS capacity, upstream bonding, and node splits left right and centre. I think the quetion you want to ask is will enough capacity be added - we both know plenty of capacity is being added :-P

So far as the 20 to 30mb goes, the users would be getting moved from a bunch of single 38mbps downstreams onto a bonded 400mbps downstreams, and thanks to the rules of statistical contention, should receive far better service as a result (you saw yourself the improvement associated with going onto a bonded 200mbps DS). However downstream capacity isn't an area where VM are particularly weak, outside of a fault situation, upstream is usually the big problem.

Still, I've always thought 50mbps down a 200mbps pipe was a bit of a tight squeeze and 100mbps to be borderline insane, so the move to 8 downstreams should improve matters more than would be expected out of direct proportionality.
The bonding we dont know yet is actually extra capacity.

It could be new channels been added to do the bonding, or it could simply be merging of existing channels, so 2 single channels become one bonded.

The 400mbit may seem like a large upgrade but speeds are been doubled, there was a 200mbit tier been planned as well although I dont know whats happening with that now.
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