Appendix A Command-Line Interface Overview; Cli Operational Mode - Juniper JUNOS - NETWORK OPERATION GUIDE REV1 Network Operation Manual

Appendix A
Command-Line Interface Overview

CLI Operational Mode

This chapter provides an overview of the JUNOS software command-line interface
(CLI). For more detailed information about using the JUNOS software CLI, see the
JUNOS System Basics Configuration Guide and the JUNOS Protocols, Class of Service,
and System Basics Command Reference.
The CLI is the interface to the software that you use whenever you access the
router—whether from the console or through a remote network connection. The
CLI, which automatically starts after the router finishes booting, provides
commands that you use to perform various tasks, including configuring the JUNOS
software, and monitoring and troubleshooting the software, network connectivity,
and the router hardware.
The CLI has two modes:
! CLI Operational Mode on page 633
! CLI Configuration Mode on page 639
In operational mode you enter commands to monitor and troubleshoot the
software, network connectivity, and router by entering commands.
When you log in to the router and the CLI starts, you are at the top level of the CLI
operational mode. At this level, there are several broad groups of CLI commands
(see Table 133).
Table 133: CLI Operational Mode Top-Level Commands
Command Description
Clear statistics and protocol database information.
clear
Syntax:
clear <arp | bfd | bgp | firewall | helper | igmp | ike | ilmi | interfaces
| ipv6 | isis | ldp | log | mld | mpls | msdp | multicast | ospf | pim | rip | ripng
| route | rsvp | services | snmp | system | vrrp>
Enter CLI configuration mode.
configure
Alternative commands: configure <exclusive | private>
!
633
CLI Operational Mode