nanog mailing list archives

RE: Network Reliability Engineering


From: Jason Young <JYoung () wantec com>
Date: Sat, 18 May 2002 18:56:45 -0500



Check out this book:

 "High-Availability Network Fundamentals"
 Cisco Press
 ISBN 1-58713-017-3

Despite its Cisco Press origin, the book is 99% vendor-neutral and applies
to any equipment. It helps you calculate MTBF-based availability of entire
network paths, factoring in various types of redundancy. You're on your own
collecting actual MTBF data from vendors, but this book may help you put it
together into something sensible.

-----Original Message-----
From: Pete Kruckenberg [mailto:pete () kruckenberg com] 
Sent: Saturday, May 18, 2002 6:13 PM
To: nanog () merit edu
Subject: Network Reliability Engineering



I'm looking for some good reference materials to do some 
"reliability engineering" calculations and projections.

This is to justify increased redundancy, and I want to
include quantifiable numbers based on MTBF data and other 
reliability factors, kind of a scientific justification 
instead of just the typical emotional appeal using analyst/vendor FUD.

I'd appreciate references on how to do this in a network 
environment (what data to collect, how to collect it, how to 
analyze, etc). Also any data (or rules of thumb) on typical 
MTBFs for network events that I won't find on vendor product 
slicks (like what's the MTBF on IOS, or human-caused service 
outages of various types, etc).

If someone has put together something remotely like this
that they'd care to share, that'd be incredibly helpful.

Thanks.
Pete.




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