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User Guide for the Cisco Network Analysis Module (NAM) Traffic Analyzer, 5.0
OL-22617-01
Chapter 3 Monitoring and Analysis
Response Time Summary
To see a chart in table format, use the “View as Chart / View as Grid” toggle button on the bottom right
corner of the chart. You can also click the “View as Image” button to view the image and save it as a
PNG file.
When viewing the data as a Grid, the numbers will be formatted according to what you have configured
in Administration > System > Preferences. On that page, you can also configure the number of Top N
entries you would like to display.
Response Time Summary
The NAM Traffic Analyzer software provides response time measurements and various
user-experience-related metrics, which are computed by monitoring and time-stamping packets sent
from the user to the server providing services. These Application Response Time Metrics are available
to view under the Response Time Summary Dashboard (Monitor > Overview > Response Time
Summary). In NAM 4.x, this was referred to as Intelligent Application Performance (IAP) analytics.
After the NAM Traffic Analyzer is started, these metrics will begin to populate automatically. When you
first navigate to Response Time Summary dashboard, the top data source is selected by default. This
dashboard shows you performance statistics for Site, Data Source, VLAN, and a specific amount of time.
Use the Interactive Report window on the left side of the screen to change the parameters for the
information displayed. To see a chart in table format, use the “View as Chart / View as Grid” toggle
button on the bottom right corner of the chart. You can also click the “View as Image” button to view the
image and save it as a PNG file.
The dashboard charts will show you the following information:
• Top N Applications by Server Response Time
This chart displays the server response times for the applications in the site, data source, VLAN, or
site clients or servers you selected in the Interactive Report window. For example, a selection “http”
would show you the average response time of http servers seen in the traffic category you have
selected in the Interactive Report window. The data is shown in microseconds.
• Top N Site-to-Site Network Time
This chart displays the top network time between the client site and the server site in the category
you selected. The data is shown in microseconds.
• Top N Servers By Server Response Time
This chart allows you to see how well servers are performing, by showing you the server that has the
longest response time (the item appearing at the top). The data is shown in microseconds.
• Top N Servers By Bytes
This chart displays the total bytes or rate of traffic for the top servers.
Note To change from bytes to bits, choose Administration > System > Preferences and change
the “Data displayed in” selection.
• Top N Clients By Transaction Time
This chart displays the transaction time per client. The client with the highest response time appears
on top. The data is shown in milliseconds.
• Top N Clients By Bytes
This chart displays the total bytes or rate of traffic for the top clients.