OSI/AS Configuration and Management Manual

OSI/AS Configuration and Management Manual—424119-001
6-1
6
Performance Considerations
This section describes factors that must be taken into account when installing,
configuring, and tuning your OSI/AS subsystem for optimal performance. This
information is intended to help you monitor performance levels and make decisions
about how to configure the subsystem components to best serve your specific subsystem
performance requirements.
This section contains the following main topics:
•
Introduction to OSI/AS Performance on this page
•
Default Attribute Values on page 6-3
•
Process Attributes on page 6-4
•
Connection-Related Attributes on page 6-5
•
Traffic and Protocol Overhead Attributes on page 6-7
•
Transport Class 4 Attributes on page 6-10
•
Event Thresholds on page 6-11
•
Miscellaneous Attributes on page 6-11
•
Ongoing Monitoring and Analysis on page 6-12
•
Corrective Actions on page 6-14
Introduction to OSI/AS Performance
Good performance is not accidental. Attention to performance begins when you initially
configure the subsystem, and continues throughout its lifetime with on-going monitoring
and adjustments over time. Systems are not static; they change as new applications
are added and as increased demand is put on the existing applications and
systems. This subsection covers the following topics:
•
Why Performance Is Important on this page
•
Factors That Affect Performance on page 6-2
•
What to Measure on page 6-2
•
Sources of Performance Problems on page 6-2
Why Performance Is Important
The level of performance of your OSI/AS subsystem directly affects the level of
performance of your entire system and your network—ultimately, your company’s
ability to do business effectively.
Inadequate performance has a negative impact on the users of your system. Good
performance is a large part of the value of your system to its users. If its users feel the
performance of your system is unsatisfactory, they may not use the system effectively,
even if the system correctly performs the required functions.