Re: [outages] News item: Blackberry services down worldwide, Egypt affected (not N.A.)

[Jay Ashworth <jra () baylink com>]

----- Original Message -----
> From: "Valdis Kletnieks" <Valdis.Kletnieks () vt edu>

> On Wed, 12 Oct 2011 07:47:13 PDT, "andrew.wallace" said:
> > Guys the outage has moved to U.S and Canada, I think we need to look
> > at this perhaps being sabotage.
>
> It ain't sabotage till you rule out "misconfigured router".
>
> Andrew, you *really* need to learn what the actual failure modes and
> root causes in real-life production networks are, and draw conclusions
> from reality, not whatever MI-7 inspired dream world the claim of
> "sabotage" came from.

In fairness, Valdis, Andrew did not say "this was obviously sabotage".

He suggested that that possibility be added to the list of things which
the RIM employees tasked with finding a root cause consider.

I think the old filtering rule applies here:

Once is happenstance.
Twice is coincidence.

Three times is enemy action.

If this turns out to look like it came from 3 or more non-cascading failures, then
sabotage will look a little more likely.

Cheers,
-- jra
-- 
Jay R. Ashworth                  Baylink                       jra () baylink com
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