Cisco Cisco IOS Software Release 12.0(13a) Libro blanco
basis.
Indicators for Performance Management
Performance indicators provide the mechanism by which an organization can measure critical success factors.
Performance indicators for performance planning include:
Performance indicators for performance planning include:
Document the network management business objectives. This could be a formal concept of operations
for network management or a less formal statement of required features and objectives.
for network management or a less formal statement of required features and objectives.
•
Create detailed and measurable service level objectives.
•
Provide documentation of the service level agreements with charts or graphs that show the success or
failure of how these agreements are met over time.
failure of how these agreements are met over time.
•
Collect a list of the variables for the baseline, such as polling interval, network management overhead
incurred, possible trigger thresholds, whether the variable is used as a trigger for a trap, and trending
analysis used against each variable.
incurred, possible trigger thresholds, whether the variable is used as a trigger for a trap, and trending
analysis used against each variable.
•
Have a periodic meeting that reviews the analysis of the baseline and trends.
•
Have a what−if analysis methodology documented. This should include modeling and verification
where applicable.
where applicable.
•
When thresholds are exceed, develop documentation on the methodology used to increase network
resources. One item to document is the time line required to put in additional WAN bandwidth and a
cost table.
resources. One item to document is the time line required to put in additional WAN bandwidth and a
cost table.
•
Performance Management Process Flow
These steps provide a high−level process flow for performance management:
Develop a Network Management Concept of Operations
Define the Required Features: Services, Scalability and Availability Objectives
a.
Define Availability and Network Management Objectives
b.
Define Performance SLAs and Metrics
c.
Define SLAs
d.
1.
Measure Performance
Gather Network Baseline Data
a.
Measure Availability
b.
Measure Response Time
c.
Measure Accuracy
d.
Measure Utilization
e.
Capacity Planning
f.
2.
Perform a Proactive Fault Analysis
Use Thresholds for Proactive Fault Management
a.
Network Management Implementation
b.
Network Operation Metrics
c.
3.
Develop a Network Management Concept of Operations
Before you define the detailed performance and capacity variables for a network, you must look at the overall
concept of operation for network management within your organization. When you define this overall
concept, it provides a business foundation upon which you can build precise definitions of the features desired
in you network. If you fail to develop an operational concept for network management, it can lead to a lack of
goals or goals that constantly shift due to customer demands.
concept of operation for network management within your organization. When you define this overall
concept, it provides a business foundation upon which you can build precise definitions of the features desired
in you network. If you fail to develop an operational concept for network management, it can lead to a lack of
goals or goals that constantly shift due to customer demands.