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ABOUT THIS GUIDE
This manual covers the command line interface (CLI) of the H3C MSR 20/30/50
Series routers. It provides a detailed description of the operating commands,
which are organized by feature. An alphabetical listing of all commands can be
found beginning on page 75.
This manual is intended for the following readers:
■ Network administrators
■ network engineers
■ Users who are familiar with the basics of networking
n
Always download the Release Notes for your product from the 3Com World Wide
Web site and check for the latest updates to software and product
documentation: http://www.3Com.com
Conventions Table 1 lists icon conventions that are used throughout this guide.
Table 2 lists text conventions that are used throughout this guide.
Table 1 Notice Icons
Icon Notice Type Description
n
Information note Information that describes important features or
instructions.
c
Caution Information that alerts you to potential loss of data
or potential damage to an application, system, or
device.
w
Warning Information that alerts you to potential personal
injury.
Table 2 Text Conventions
Convention Description
Screen displays This typeface represents information as it appears on the
screen.
Keyboard key names If you must press two or more keys simultaneously, the key
names are linked with a plus sign (+), for example:
Press Ctrl+Alt+Del
The words “enter” and “type” When you see the word “enter” in this guide, you must type
something, and then press Return or Enter. Do not press
Return or Enter when an instruction simply says “type.”