About This Guide
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Audience
This guide is intended for experienced system and network specialists
working with E-series routers in an Internet access environment.
Conventions
Tabl e 1 defines notice icons used in this guide, and Tabl e 2 defines text
conventions used throughout the book, except for command syntax.
Tabl e 3 provides command syntax conventions used primarily in the
E-Series Command Reference Guide. For more information about
command syntax, see E-Series System Basics Configuration Guide,
Chapter 1, Planning Your Network.
Table 1 Notice icons
Icon Meaning Description
Informational note Indicates important features or instructions.
Caution Indicates that you may risk losing data or damaging your hardware.
Warning Alerts you to the risk of personal injury.
Table 2 Text conventions (except for command syntax)
Convention Description Examples
Bold typeface Represents commands and
keywords in text.
• Command example:
Issue the clock source command.
• Keyword example:
Specify the keyword exp-msg.
Bold Courier typeface Represents text that the user must
type.
user input
Key name in angle brackets Indicates the name of a key on the
keyboard.
Press <Enter>.
Key names linked with a plus sign
(+) in angle brackets.
Indicates that you must press two or
more keys simultaneously.
Press <Ctrl+B>.
Plain Courier typeface Represents information as displayed
on your terminal’s screen.
host1#show ip ospf 2
Routing Process OSPF 2 with
Router ID 5.5.0.250
Router is an Area Border
Router (ABR)