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User Guide for the Cisco Network Analysis Module Traffic Analyzer, 4.1
OL-19530-02
Appendix A Troubleshooting
NAM Behavior
• Does a ping to NAM mgmt IP address work?
• What is the module status on Sup/router?
show modules CLI
NAM Behavior
Q.
Why is the browser behaving strangely? It is displaying data for no apparent reason.
A.
Clear the browser cache, close the browser, and open a new session and try again. Also, make sure
you are using a browser that is supported with NAM 5.0 (see the NAM Traffic Analyzer 5.0 Release
Notes).
Q.
Why is the NAM performance lower than expected?
A.
Disk capture will reduce the NAM performance considerably. It is due to the disk input/output
speed. You will see a warning on the screen in the top right corner.
WAAS Troubleshooting
Q.
Why is no WAAS data seen on the Monitor screens?
A.
Perform the following steps:
• Use the NAM GUI to verify that the Monitored Servers list is configured with the correct server IP
addresses.
• Use the NAM GUI to verify that WAAS data sources have data collection enabled for applicable
segments.
• Use the WAAS CLI “show statistics flow filters” to verify that the servers have active traffic flows
that are optimized and monitored.
• Use the WAAS CLI “show statistics flow mon tcpstat” to verify that WAAS Flow Agent exports
flow data to the correct NAM IP address.
Q.
The WAAS is not sending data to the NAM, and the reports are not showing any values.
A.
The WAAS will not send data unless filtering is enabled on the NAM. Enable filtering at Setup >
Data Sources > WAAS > Monitored Servers, and check the “Filter Response Time for all Data
Sources by Monitored Servers” check box.