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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
Analyzing Traffic
• Top N Applications - Egress
• Top N H ost s - In gre ss
• Top N Hosts - Egress
• Top N DSCP Aggr - Ingress
• Top N DSCP Aggr - Egress
The interface speed can be entered manually through the Interface capacity table, or it can be auto
configured if the SNMP settings for the NDE device are entered in data source table.
Viewing Interface Details
To view packet distribution details on a specific interface, click the interface name (or interface index)
in the Interface Selector on the left side of the screen. The detail window displays with a chart that shows
the total packet distribution on the specified interface.
DSCP Detail
On the “Top N DSCP Aggr - Ingress” and “Top N DSCP Aggr - Egress” chart, you can left-click a
colored bar to get the context menu, and choose “DSCP Detail” to see the “All DSCP” screen. You can
also get to this screen by choosing Analyze > Traffic > DSCP Traffic from the menu and clicking the
“All DSCP” button on the right.
Table 3-4 describes the fields on the All Applications screen.
DSCP Differentiated services monitoring (DiffServ) is designed to monitor the network traffic usage of
differentiated services code point (DSCP) values.
To monitor DSCP groups, you must configure at least one aggregation profile and one or more
aggregation groups associated with each profile. For more information on configuring an aggregation
profile, see DSCP Groups, page 2-64.
You can monitor the DSCP information by going to Analyze > Traffic > DSCP Traffic Analysis. You
will see the DSCP group information as shown in Figure 3-5.
Tab l e 3-4 DSCP Detail
Field Description
DSCP DSCP value
Application Application type
Bits/sec or Bytes/sec Traffic rate; number of bits or bytes per second
Note In Administration > System > Preferences, you
can choose to display NAM data in Bits or Bytes.
Packets/sec Traffic rate; number of packets per second