cost of misconfigurations

Simon Knight simon.knight at
Thu Aug 2 04:22:02 UTC 2012

Quantifying the business costs would be very complex.

Here are some reports and research papers that may be a starting point:
[1]	Juniper Networks, Inc., “What's Behind Network Downtime?,” pp.
1–12, May 2008.
[2]	R. Mahajan, D. Wetherall, and T. Anderson, “Understanding BGP
misconfiguration,” Proceedings of the 2002 conference on Applications,
[3]	A. Medem, R. Teixeira, N. Feamster, and M. Meulle, “Joint analysis
of network incidents and intradomain routing changes,” Network and
Service Management (CNSM), 2010 International Conference on, pp.
198–205, 2010.
[4]	D. Turner, K. Levchenko, A. C. Snoeren, and S. Savage, “California
fault lines: understanding the causes and impact of network failures,”
presented at the SIGCOMM '10: Proceedings of the ACM SIGCOMM 2010
conference on SIGCOMM, 2010.
[5]	Z. Yin, X. Ma, J. Zheng, Y. Zhou, L. N. Bairavasundaram, and S.
Pasupathy, “An empirical study on configuration errors in commercial
and open source systems,” presented at the SOSP '11: Proceedings of
the Twenty-Third ACM Symposium on Operating Systems Principles, 2011.
[6]	Z. Kerravala, “As the Value of Enterprise Networks Escalates,
Does the Need for Configuration Management
,”, 01-Jan.-2004. [Online]. Available:
[Accessed: 09-May-2012].
[7]	W. Enck, P. McDaniel, S. Sen, and P. Sebos, “Configuration
management at massive scale: System design and experience,” USENIX
'07, Jun. 2007.
[8]	R. D. Doverspike, K. K. Ramakrishnan, and C. Chase, “Structural
overview of ISP networks,” Guide to Reliable Internet Services and
Applications, pp. 19–93, 2010.

On 2 August 2012 10:46, George Herbert <george.herbert at> wrote:
> On Wed, Aug 1, 2012 at 5:32 PM, Diogo Montagner
> <diogo.montagner at> wrote:
>> Hi Darius,
>> You are right. The lost of a customer due to those things. However, I
>> would classify this as an unknown situation (in terms of risk
>> analisys) because the others I mentioned are possible to calculate and
>> estimate (they are known). But it is very hard to estimate if a
>> customer will cancel the contract because 1 or n network outages. In
>> theory, if the customer SLA is not being met consecutively, there is a
>> potential probability he will cancel the contract.
>> Regards
> On the end customer side, I've done a bunch of reliability / risk cost
> assessments for various customers over the years.  It's never easy.
> For an ISP... customers are fairly locked in, but for big networks and
> customers, especially multihoming customers, business goes where they
> want it.
> SLA costs are easy.  Predicting the final financial impact is hard.
> --
> -george william herbert
> george.herbert at

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