On Aug 21, 2007, at 12:55 PM, David Lesher wrote:
Speaking on Deep Background, the Press Secretary whispered:
On Tue, 21 Aug 2007, Adrian Chadd wrote:
Or there might suddenly be a reason/market for properly physically diverse paths which provide partial 1:1 (ie, some services are guaranteed full backup bandwidth, other services get degraded access) IP paths..
I don't think the target customer in this case is really in the market for properly physically diverse paths which provide partial 1:1. The target customer seems to be looking for no-frills, cheap Internet.
Customers in a market for properly physically diverse paths with partial 1:1 probably are already buying Internet from other ISPs.
And still not getting it. A friend oversees various expensive USG networks. They pay for physically diverse routing from multiple sources. Yet every year, when they do an laborious audit down to the "what fiber, in what bundle, in what trench" level; they find..
Guess What! Yep, someone has moved this circuit or that one to where both pipes are intimate neighbors.
My rule is that you never really know where bits are actually going unless you put in the fiber yourself. (Of course, you can know where the bits _went_, once the backhoe or the train crash takes out your circuit, but by an extension of the quantum measurement theory, that only applies to the past, not the future.)
It's inevitable given buying throughput is rather like moving something by ship. You never go to the ship [fiber] owner; you go to a freight broker who deals with a consolidator who calls an agent who knows who has chartered ships from A to B on DATE and.... [Look up the "GTS Katie" incident for a side effect of this.]
Yes, and likewise you never know how your (literal) shipment is going until you get it. (Vienna, Austria, to Norfolk, Virginia, with a stage by truck from St Louis, Missouri ? Happened to me. They must have been using some sort of hot potato routing.) Totally OT, but it made me really happy to learn that Dulles Airport is officially a port, and I can literally send things by ship to IAD for customs clearance and pickup for the same price as to Norfolk, Virginia (an actual port, with docks and water and ships and all that). Of course, I don't have to care about their routing protocols or their last mile problems. Regards Marshall
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