nanog mailing list archives

Re: outages, quality monitoring, trouble tickets, etc


From: Dave Siegel <dsiegel () rtd com>
Date: Mon, 27 Nov 1995 14:13:35 -0700 (MST)

    Jonathan> Everyone likes to portray
    Jonathan> the image of having a 99.98% uptime whenever
    Jonathan> possible, even though most folks realize
    Jonathan> that it just plain isn't possible

Well, more importantly, what on earth does a number like
that mean?

Sorry, bad choice of words.  Rather than uptime, availability would be the
proper word.  Availability tends to be the amount of time the network is
"available" for the customer to receive their expected service (whether
guaranteed in writing or not), and for the customers expectation of how the
service will perform when it is considered "in-service" is met.

heh.

Depending on the service organizations view customer expectations, there is a
little too much room for differences in perceived uptime using that definition.

Dave

-- 
Dave Siegel                  President, RTD Systems & Networking, Inc.
(520)623-9663                Network Engineer -- Regional/National NSPs (Cisco)
dsiegel () rtd com                   User Tracking & Acctg -- "Written by an ISP, 
http://www.rtd.com/~dsiegel/                                    for an ISP."


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