Troubleshooting Hardware Components; Overview Of Troubleshooting Resources; Command-Line Interface - Juniper M10i Hardware Manual

Chapter 12

Troubleshooting Hardware Components

Overview of Troubleshooting Resources

Command-Line Interface

This chapter describes how to troubleshoot problems with hardware components
installed in the router. If you encounter software problems, or problems with hardware
components not discussed here, contact the Juniper Networks Technical Assistance
Center (JTAC) as described in "Requesting Support" on page xxiv.
Overview of Troubleshooting Resources
Troubleshooting the CFEB
Troubleshooting the Fan Tray
Troubleshooting PICs
Troubleshooting the Power System
This section provides an overview of the resources you can use while troubleshooting
problems with the router:
Command-Line Interface
LEDs on page 80
Hardware and Interface Alarm Messages
Juniper Networks Technical Assistance Center
The JUNOS Internet software command-line interface (CLI) is the primary tool for
controlling and troubleshooting router hardware, the JUNOS Internet software, routing
protocols, and network connectivity. CLI commands display information from routing
tables, information specific to routing protocols, and information about network
connectivity derived from the ping and traceroute utilities.
You enter CLI commands on one or more external management devices connected
to the Routing Engine through ports on the Routing Engine. The port labeled
attaches the Routing Engine to a laptop, modem, or other auxiliary
AUX/MODEM
device, the port labeled CONSOLE attaches to a system console, and the port labeled
attaches to a management LAN. For more information, see "Routing Engine
MGMT
Interface Ports" on page 16.
on page 79
on page 83
on page 84
on page 84
on page 85
on page 79
on page 80
on page 83
Overview of Troubleshooting Resources
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