nanog mailing list archives

Re: Cingular Wireless drops below 99.999


From: Marshall Eubanks <tme () 21rst-century com>
Date: Wed, 14 Feb 2001 07:41:55 -0500


Well, just from an averaging standpoint, 99.999% is 1 minus 10^-5. 
So, you need to be up for 2 x 10^5 days; roughly 547.6 years, to
have it AVERAGE to 99.999% (for you). 

                                   Regards
                                   Marshall Eubanks


Alan Clegg wrote:

For the second day in a row, Cingular Wireless has no service in the 919,
910, and 704 areacodes.   The customer support specialist that I talked to
this morning tells me that there are 48 sites down, and offered no
information as to a time-to-repair.

Not being a statistics major, how long do you have to be up to fix 2 days
back to 99.999%?

If you are trying to get in touch with me today, just don't bother.  ;-)

AlanC
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