Cisco Cisco IOS Software Release 12.0(2b) Weißbuch
Document a What−if Analysis Methodology
A what−if analysis involves modeling and verification of solutions. Before you add a new solution to the
network (either a new application or a change in the Cisco IOS release), document some of the alternatives.
network (either a new application or a change in the Cisco IOS release), document some of the alternatives.
The documentation for this analysis includes the major questions, the methodology, data sets, and
configuration files. The main point is that the what−if analysis is an experiment that someone else should be
able to recreate with the information provided in the document.
configuration files. The main point is that the what−if analysis is an experiment that someone else should be
able to recreate with the information provided in the document.
Document the Methodology used for Increasing Network Performance
This documentation includes additional WAN bandwidth and a cost table that helps increase the bandwidth
for a particular type of link. This information helps the organization realize how much time and money it costs
to increase the bandwidth. Formal documentation allows performance and capacity experts to discover how
and when to increase performance, as well as the time line and costs for such an endeavor.
for a particular type of link. This information helps the organization realize how much time and money it costs
to increase the bandwidth. Formal documentation allows performance and capacity experts to discover how
and when to increase performance, as well as the time line and costs for such an endeavor.
Periodically review this documentation, perhaps as a part of the performance review quarterly, in order to
ensure that it remains up to date.
ensure that it remains up to date.
Summary
The only way to achieve the goals of the ideal network management system is to actively integrate the
components of performance management into the system. This goal should include the use of availability and
response time metrics tied into a system of notification when thresholds are exceeded thresholds. It would
have to include the use of a baseline for capacity planning that would have links to a heuristic model for
provisioning and exception reporting. It could have a built−in modeling or simulation engine that enables the
model to be updated in real time and provide a level of both planning and troubleshooting through software
simulations.
components of performance management into the system. This goal should include the use of availability and
response time metrics tied into a system of notification when thresholds are exceeded thresholds. It would
have to include the use of a baseline for capacity planning that would have links to a heuristic model for
provisioning and exception reporting. It could have a built−in modeling or simulation engine that enables the
model to be updated in real time and provide a level of both planning and troubleshooting through software
simulations.
While much of this system might seem an impossible ideal that could never be achieved, each of the
components is currently available today. Further, the tools to integrate these components also exist in
programs like MicroMuse. We should continue to work toward this ideal as it is more realistic today than
ever.
components is currently available today. Further, the tools to integrate these components also exist in
programs like MicroMuse. We should continue to work toward this ideal as it is more realistic today than
ever.
Related Information
High Availability Technology White Papers
•
Capacity and Performance Management White Paper
•
Technical Support & Documentation − Cisco Systems
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© 2014 − 2015 Cisco Systems, Inc. All rights reserved. Terms & Conditions | Privacy Statement | Cookie Policy | Trademarks of
Cisco Systems, Inc.
Updated: Jan 16, 2007
Document ID: 15115