2-30
User Guide for the Cisco Network Analysis Module (NAM) Traffic Analyzer, 5.0
OL-22617-01
Chapter 2 Setting Up The NAM Traffic Analyzer
Traffic
For more information about WAAS and configuring the WAAS components, see the document:
Cisco Wide Area Application Services Configuration Guide, OL-16376-01
http://www.cisco.com/en/US/docs/app_ntwk_services/waas/waas/v4019/configuration/guide/
waas4cfg.html
Response Time Monitoring from WAAS Data Sources
The NAM processes the TCP flow data exported from the WAAS and performs application response time
(ART) calculations and reports. You use the NAM GUI to create a WAAS data source to monitor WAAS
traffic statistics. In addition to ART, NAM monitors and reports other traffic statistics of the WAAS data
sources including application, host, and conversation information.
The NAM provides different ART metrics by collecting data at different points as packets flow along
their paths. The NAM provides five different collection points, each represented by a WAAS data source.
Figure 2-3, “WAAS Data Sources (Data Collection Points)”, shows an example of the data collection
points. The solid line represents data exported from a WAAS device and/or directly monitored traffic
like SPAN. The broken line represents data exported from a WAAS device only.
Figure 2-3 WAAS Data Sources (Data Collection Points)
You can use the NAM GUI to configure data sources at the locations in the network described in
Table 2-11, WAAS Data Collection Points.
Client Edge
WAE
Client
Client
WAN
Server
WAN Server
TCP 1 TCP 2 TCP 3
NAM
Core
WAE Server
205558
Tab l e 2-11 WAAS Data Collection Points
Setting Description
Client This setting configures the WAE device to export the original (LAN side) TCP
flows originated from its clients to NAM for monitoring. To monitor this point,
configure a Client data source.
Client WAN This setting configures the WAE device to export the optimized (WAN side)
TCP flows originated from its clients to NAM for monitoring. To monitor this
point, configure a Client WAN data source.
Server WAN This setting configures the WAE device to export the optimized (WAN side)
TCP flows from its servers to NAM for monitoring. To monitor this point,
configure a Server WAN data source.