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Documentation Conventions


Table 1 defines notice icons used in this guide.

Table 1: Notice Icons




Informational note

Indicates important features or instructions.


Indicates a situation that might result in loss of data or hardware damage.


Alerts you to the risk of personal injury or death.

Laser warning

Alerts you to the risk of personal injury from a laser.


Indicates helpful information.

Best practice

Alerts you to a recommended use or implementation.

Table 2 defines the text and syntax conventions used in this guide.

Table 2: Text and Syntax Conventions




Bold text like this

Represents text that you type.

To enter configuration mode, type the configure command:

user@host> configure
Fixed-width text like this

Represents output that appears on the terminal screen.

user@host> show chassis alarms
No alarms currently active

Italic text like this

  • Introduces or emphasizes important new terms.

  • Identifies guide names.

  • Identifies RFC and Internet draft titles.

  • A policy term is a named structure that defines match conditions and actions.

  • Junos OS CLI User Guide

  • RFC 1997, BGP Communities Attribute

Italic text like this

Represents variables (options for which you substitute a value) in commands or configuration statements.

Configure the machine’s domain name:

root@# set system domain-name domain-name

Text like this

Represents names of configuration statements, commands, files, and directories; configuration hierarchy levels; or labels on routing platform components.

  • To configure a stub area, include the stub statement at the [edit protocols ospf area area-id] hierarchy level.

  • The console port is labeled CONSOLE.

< > (angle brackets)

Encloses optional keywords or variables.

stub <default-metric metric>;

| (pipe symbol)

Indicates a choice between the mutually exclusive keywords or variables on either side of the symbol. The set of choices is often enclosed in parentheses for clarity.

broadcast | multicast

(string1 | string2 | string3)

# (pound sign)

Indicates a comment specified on the same line as the configuration statement to which it applies.

rsvp { # Required for dynamic MPLS only

[ ] (square brackets)

Encloses a variable for which you can substitute one or more values.

community name members [ community-ids ]

Indention and braces ( { } )

Identifies a level in the configuration hierarchy.

routing-options {
static {
route default {
nexthop address;

; (semicolon)

Identifies a leaf statement at a configuration hierarchy level.

GUI Conventions

Bold text like this

Represents graphical user interface (GUI) items you click or select.

  • In the Logical Interfaces box, select All Interfaces.

  • To cancel the configuration, click Cancel.

> (bold right angle bracket)

Separates levels in a hierarchy of menu selections.

In the configuration editor hierarchy, select Protocols>Ospf.