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User Guide for the Cisco Network Analysis Module (NAM) Traffic Analyzer, 5.0
OL-22617-01
Chapter 2 Setting Up The NAM Traffic Analyzer
Classification

Editing an Application Group

To edit an application group:
Step 1 Choose Setup > Classification > Application Groups.
Step 2 Select the Application Group by clicking the radio button, then click Edit.
Step 3 Make the necessary changes, then click Submit to save your changes, or click Reset to cancel.

Deleting an Application Group

To delete an application group, simply select the application and then click the Delete button. You can
only delete one application group at a time.
URL-based Applications
URL-based applications are extensions to the list of applications. When the URL in an HTTP request (a
URL on any port that is part of the iana-l4:http protocol, or protocol named “http” under the “iana-l4”
engine ID) matches the criteria of a URL-based application, the traffic is classified as that protocol. The
device interface statistics are collected by regularly (once a minute) polling the ifTable statistics of all
interfaces on the managed device.
A URL-based application can be used the same way as any other application. For example, a URL-based
application can be used in collections, captures, and reports.
An incoming URL is matched against the criteria of the configured URL-based application, in the order
of the index, until a match is found. When a match is found, the remaining URL-based applications are
not considered.
A URL consists of the following parts:
• a host
• a path
• an argument
For example, in the URL http://host.domain.com/intro?id=123:
• the host part is host.domain.com
• the path part is /intro
• the argument part is ?id=123
In the configuration of an URL-based application, the path part and the argument path are combined and
called the path part.
Note The match strings of the URL-based applications are POSIX-limited regular expressions.
Note A maximum of 64 URL-based applications can be defined.
To create a URL-based application from a collected URL: