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User Guide for the Cisco Network Analysis Module (NAM) Traffic Analyzer, 5.0
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Chapter 2 Setting Up The NAM Traffic Analyzer
Traffic
You can also configure a data source to use Export Passthrough data. For more information about
configuring WAAS data sources, see Editing WAAS Data Sources, page 2-34.
Monitoring Client Data Sources
By monitoring the TCP connections between the client and the WAE device (Client segment in
Figure 2-3), you can measure the following ART metrics:
• Total Response Time as experienced by the client
• Total Transaction Time as experienced by the client
• Bandwidth usage (bytes/packets) before optimization
• Number of transactions and connections.
• Network Time broken down into two segments: client-edge and edge-server
Monitoring WAN Data Sources
By monitoring the TCP connections between the edge and core WAE devices (Client WAN and Server
WAN segments in Figure 2-3), you can measure the following:
• Bandwidth usage (bytes/packets) after optimization
• Network Time of the WAN segment
Monitoring Server Data Sources
By monitoring the TCP connections between the core WAE devices and the servers (Server segment in
Figure 2-3), you can measure the following ART metrics:
• Server Response Time (without proxy acceleration/caching server)
• Network Time between the core WAE device and the servers
Note NAM measures Network Time by monitoring the TCP three-way handshake between the devices.
Server This setting configures the WAE device to export the original (LAN side) TCP
flows from its servers to NAM for monitoring. To monitor this point, configure
a Server data source.
Passthrough This setting configures the WAE device to export the TCP flows that are passed
through unoptimized.
Table 2-11 WAAS Data Collection Points (continued)
Setting Description