Objectives

This guide provides descriptions of the JUNOS software commands that you use to monitor and troubleshoot basic system operations and services on the router.

For additional commands, see these references:

• JUNOS Routing Protocols and Policies Command Reference
• JUNOS Interfaces Command Reference

Note: This guide documents Release 9.4 of the JUNOS software. For additional information about the JUNOS software—either corrections to or information that might have been omitted from this guide—see the software release notes at http://www.juniper.net/.

For information about configuration statements and guidelines related to the commands described in this reference, see the following configuration guides:

• JUNOS CLI User Guide—Describes how to use the JUNOS command-line interface (CLI) to configure, monitor, and manage Juniper Networks routing platforms.
• JUNOS Software Installation and Upgrade Guide—Provides a description of JUNOS software components and packaging, and includes detailed information about how to initially configure, reinstall, and upgrade the JUNOS system software.
• JUNOS System Basics Configuration Guide—Describes Juniper Networks routing platforms, and provides information about how to configure basic system parameters, supported protocols and software processes, authentication, and a variety of utilities for managing your router on the network.
• JUNOS Services Interfaces Configuration Guide—Includes configuration statements and guidelines for real-time performance monitoring (RPM) and all services, such as Compressed Real-Time Transport Protocol (CRTP), Data Link Switching (DLSw), flow collection and monitoring, and stateful firewall filters.
• JUNOS Class of Service Configuration Guide—Includes configuration statements and guidelines for class of service (CoS) features.
• JUNOS Network Interfaces Configuration Guide—Includes configuration statements and guidelines for bit error rate test (BERT) parameters and Automatic Protection Switching (APS).
• JUNOS Network Management Configuration Guide—Includes configuration statements and guidelines for accounting parameters and the Simple Network Management Protocol (SNMP).

For information about related tasks performed by network operations center (NOC) personnel, see the following Network Operations Guides:

• JUNOS Hardware Network Operations Guide
• JUNOS Baseline Network Operations Guide

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