Cisco CiscoWork QoS Policy Manager 4.1.2 User Guide
Chapter 9 Using QoS Analysis
Understanding QoS Analysis
9-2
User Guide for QoS Policy Manager 3.0
78-12542-01
Only policies that are deployed to the network by QPM can be monitored. For
information about monitoring QoS that you configured without using QPM, see
information about monitoring QoS that you configured without using QPM, see
.
Tip
If you add interfaces to a device that has network elements that are being
monitored, either by a running historical monitoring task or by a running real-time
monitoring report, you must rediscover the device. If you do not rediscover the
device, the monitoring application will not be able to poll monitoring data for the
device interfaces, resulting in an application error. For information about
rediscovering devices, see
monitored, either by a running historical monitoring task or by a running real-time
monitoring report, you must rediscover the device. If you do not rediscover the
device, the monitoring application will not be able to poll monitoring data for the
device interfaces, resulting in an application error. For information about
rediscovering devices, see
The following topics provide more overview information about using QPM QoS
analysis:
analysis:
•
•
Understanding the Types of QoS Analysis
There are two types of QoS analysis in QPM:
•
Historical analysis monitors traffic for all QPM policies on one or more
interfaces, polling on a regular basis and storing the gathered data.
interfaces, polling on a regular basis and storing the gathered data.
Historical monitoring jobs gather data between a start time and end time that
you define. All of the gathered data can be displayed in historical monitoring
reports.
you define. All of the gathered data can be displayed in historical monitoring
reports.
You would typically use historical monitoring as an operations tool. It is
useful for monitoring the performance of your network’s QoS configuration
on an ongoing basis, over a period of time.
useful for monitoring the performance of your network’s QoS configuration
on an ongoing basis, over a period of time.
•
Real-time analysis monitors traffic for all QPM policies on one interface
continuously, in real time. No historical data is stored.
continuously, in real time. No historical data is stored.
You would typically use real-time monitoring for immediately viewing the
effects of QoS change, troubleshooting QoS problems, or investigating new
QoS configurations in a lab environment.
effects of QoS change, troubleshooting QoS problems, or investigating new
QoS configurations in a lab environment.