On Fri, 7 Sep 2007, Thomas Bridge wrote:
> Within the context purely of your own customers - you can - you can
> simply compare the traffic that comes in from the telco to the
> traffic that leaves the BAS on the other side. While that doesn't
> tell you what the value is on a per exchange basis, it does give a
> hint as to how much traffic is being exchanged directly between
> your customers. My recollection is that it was pretty insigificant.
Sure, I agreed already you'd see that.
There's no incentive for users and their applications to talk to each
other if it's not one or more of:
(ISPs don't differentiate on cost, even if they did, they can't
differentiate for usage of the links you say are the problem, the
exchange<->BAS links, cause IP doesn't see those)
- lower latency
(gamers are obsessed with this, gaming doesn't take much bandwidth
- higher bandwdith
(from a DSL customer's POV, the DSL line is mostly the bottle-neck,
but intra-exchange could be faster if there were serious
contention. Likely not much of a difference though. Could be a
much bigger factor for things like cable though)
No incentive, no traffic. ;)
> I agree that you can't tell what the patterns are for other users
> with other ISPs in the same domain. I see no major evidence that
> there is much "localised" traffic taking the suboptimal route.
Because there isn't a more optimal route!
Because we've *hidden* it!
Paul Jakma paul at clubi.iepaul at jakma.org Key ID: 64A2FF6A
Illusion is the first of all pleasures.
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