Anyone familiar with the SBC product lingo?

Fri Apr 15 00:25:12 UTC 2005

On 4/14/05, Stephen J. Wilcox <steve at telecomplete.co.uk> wrote:
> you'll never get better redundancy than having more than one carrier.

One carrier can often tell if two circuits they're providing you are
on the same route,
        and can develop processes for building circuits that are not
only installed diversely,
        but don't get rerouted onto the same path.  Doesn't mean that
*every* carrier can do this ,
       or that the ones who can always do it reliably, but it's a start.
Two carriers can almost never tell if that's the case, even if neither
of them is buying
       services from the other or from a common third carrier.
       Nor are they good at developing processes together.
       They are less likely to have common equipment failures, or
common operator failures,
       but they're more likely to have common backhoe targets.

Also, while it may be possible to get diversity by deploying two
circuits at the same time,
that doesn't mean that you can get diversity by deploying one circuit
and later deploying another.
A common problem is that routes ABCDEFGZ and AHIJKLMZ are diverse,
but the first circuit you buy is on route ABCKLMZ and there's no way
to build diversity with the leftovers.
Another common problem is that routes ABCDEFGZ and AHIJKLMZ are both
more expensive than ABCKLMZ, and AHINOPQRSTUVWXYZ is much more
expensive,
and you've awarded the initial purchase to the lowest bidder and
expect others to be competitive.

----
             Thanks;     Bill

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