NBAR2 Protocol Pack 4.1.1
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This preface describes the audience, organization, and conventions of this document. It also provides information on how to obtain other documentation. This chapter includes the following sections:


This publication is for experienced network administrators who configure and maintain Cisco wireless LAN controllers and Cisco lightweight access points.


This document uses the following conventions:

Table 1 Conventions
Convention Indication
bold font Commands and keywords and user-entered text appear in bold font.
italic font Document titles, new or emphasized terms, and arguments for which you supply values are in italic font.
[ ] Elements in square brackets are optional.
{x | y | z } Required alternative keywords are grouped in braces and separated by vertical bars.
[ x | y | z ] Optional alternative keywords are grouped in brackets and separated by vertical bars.
string A nonquoted set of characters. Do not use quotation marks around the string or the string will include the quotation marks.
courier font Terminal sessions and information the system displays appear in courier font.
<> Nonprinting characters such as passwords are in angle brackets.
[] Default responses to system prompts are in square brackets.
!, # An exclamation point (!) or a pound sign (#) at the beginning of a line of code indicates a comment line.


Means reader take note. Notes contain helpful suggestions or references to material not covered in the manual.


Means the following information will help you solve a problem.


Means reader be careful. In this situation, you might perform an action that could result in equipment damage or loss of data.

Related Documentation

These documents provide complete information about the Cisco Unified Wireless Network solution:

Click this link to access user documentation pertaining to the Cisco Unified Wireless Network solution:


Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:


Subscribe to the What's New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS version 2.0.