Cisco Systems 5, NAM manual Example, Choose Setup Classification URL-based Applications

Chapter 2 Setting Up The NAM Traffic Analyzer

Classification

Step 1 Choose Setup > Classification > URL-based Applications.

Step 2 Click Create.

The Create URL-based Application window displays.

Enter values in the fields according to Table 2-34, URL-Based Applications.

Table 2-34 URL-Based Applications

Field	Description
Index	A unique number (1-64) of each URL-based application. You can
	define up to 64 URL-based applications in NAM.
URL Host Part Match	Matching criteria in the host portion of the URL string appears in
	HTTP packets. This match is a POSIX Regular Expression1.
URL Path Part Match	Matching criteria in the path portion of the URL string appears
	in HTTP packets. This match is a POSIX Regular Expression1.
Content-Type Match	Matching criteria in the Content-Type field of the HTTP packets.
	This match is a POSIX Regular Expression1.
Protocol Description	Description of this URL-based application.

1.A regular expression provides a concise and flexible means for matching strings of text, such as particular characters, words, or patterns of characters. A regular expression is written in a formal language that can be interpreted by a regular expression processor, a program that either serves as a parser generator or examines text and identifies parts that match the provided specification. The IEEE POSIX Basic Regular Expressions (BRE) standard (released alongside an alternative flavor called Extended Regular Expressions or ERE) was designed mostly for backward compatibility with the traditional (Simple Regular Expression) syntax but provided a common standard which has since been adopted as the default syntax of many Unix regular expression tools, though there is often some variation or additional features. Many such tools also provide support for ERE syntax with command line arguments. In the BRE syntax, most characters are treated as literals - they match only themselves (in other words, a matches "a").

Step 3 Click:

•The Submit button to submit the request

•The Reset button to clear the values on the screen

•The Cancel button to close the dialog box and return to the previous screen

Example

After you click submit, the NAM will have an application named “my_host HTTPserver.” It functions like any user-defined application in the NAM. The packets or octets counter is the number of HTTP packets that have the URL “HOST=my_host.mydomain.com.”

	User Guide for the Cisco Network Analysis Module (NAM) Traffic Analyzer, 5.0
2-72	OL-22617-01