Optimize the use of the network and applications
Performance Management The primary function of an ideal performance management system is to optimize the use of the network and applications so as to provide a consistent and predictable level of service. Once this goal is established, then the focus of performance management is to optimize the performance of the network and applications in order to comply with service-level agreements.
Performance management involves the following:
- Configuring data-collection methods and network testing
- Collecting performance data
- Optimizing network service response time
- Proactive management and reporting
- Managing the consistency and quality of network services
Performance management is the measurement of network and application traffic for the purpose of providing a consistent and predictable level of service at a given instance and across a defined period of time. Performance management involves monitoring the network, application, and service activity and adjusting designs and configurations in order to meet performance requirements or improve performance and traffic management.
Set the foundation for understanding performance management principles and the parameters within service quality agreements, also called service-level agreements (SLAs).
- Define proactive measures to make network, application, and service performance visible to you and your organization.
- Provide guidance supported by examples and scenarios that you can apply in your network.
Look into the following scenarios:
- Performance management terminology
- Typical issues and problems affecting performance
- Performance operation workflow
- Implementing performance management
Performance Management Terminology
In terms of networking, performance management is the configuration and measurement of network traffic for the purpose of providing a consistent and predictable level of service. Performance management involves monitoring network activity and analyzing and adjusting network design and configuration in order to improve performance and traffic management.
Performance monitoring involves the continuous collection of data concerning the performance of network elements. Performance monitoring is designed to measure the overall quality of performance, using monitored parameters to detect degradation.
Performance analysis: The collected performance records may require additional processing and analysis to evaluate each entity’s performance level. Performance analysis includes the following functions:
- Creating recommendations for performance improvement
- Evaluating threshold policy
- Forecasting network usage
- Capacity analysis of the network
Performance metrics provide the mechanism by which an organization measures critical success factors. Performance metrics vary from business to business. They indicate how you will determine whether you have carried out the critical success factors that you identified, and indicate the kind of data you will need to gather.
Performance metrics are as follows:
- Connectivity (one-way)
- Delay (both round-trip and one-way)
- Packet loss (one-way)
- Jitter (one-way) or delay variation
- Service response time
- Measurable SLA metrics
Key Performance Indicators
A Key Performance Indicator (KPI) is a quantifiable metric of the performance of essential operations and/or processes in an organization. Hence, KPIs can do the following:
- Reflect the performance of network operators in achieving their goals and objectives.
- Reflect strategic value drivers rather than just measuring non-critical business activities and processes.
- Measure the health of the networks, servers, and applications and help ensure all individuals at all levels are using consistent strategies to achieve shared goals.
- Provide the focal point for standardization, collaboration, and coordination.
Consider the following during the KPI definition and development process:
- What should you measure? And how often should you measure?
- How complex should the metric be?
- What should you use as a benchmark?
- How do you ensure the metrics support your strategies?
Typical Challenges Affecting Performance
Network operators are continually challenged to efficiently deliver business-critical applications while running the network at optimum performance. Also enterprises that deliver some form of service to their customers need an effective strategy for monitoring network conditions prior to potential issues becoming serious problems. Poor network performance can result in lost productivity, opportunity, and revenue, and increased operational costs. Hence, detailed monitoring and tracking of the network, applications, and users are essential in optimizing network performance.