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CHAPTER 22
Troubleshooting Components
Troubleshooting Resources for ACX2200 Routers
Command-Line Interface
Front Panel LEDs
Copyright © 2017, Juniper Networks, Inc.
Troubleshooting Resources for ACX2200 Routers on page 105
Monitoring System Log Messages on page 106
Verifying Active Alarms on page 106
Understanding Alarm Types and Severity Classes on ACX Series Routers on page 107
Command-Line Interface on page 105
Front Panel LEDs on page 105
The Junos OS command-line interface (CLI) is the primary tool for controlling and
troubleshooting router hardware, the Junos OS, 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
and
utilities.
traceroute
You enter CLI commands on one or more external management devices connected to
ports on the front panel.
For information about using the CLI to troubleshoot the Junos OS, see the appropriate
Junos OS configuration guide.
The front panel on the router contains LEDs that allow you to troubleshoot the router.
LEDs on the front panel include the following:
System LED—One LED labeled
status of the router.
Management and console port LEDs—Two pairs of LEDs on the front panel indicate
the status of the ports. The ports are labeled
Link LEDs—Each network port has one pair of port LEDs that indicate the status of the
ports.
on the right side of the front panel indicates the
SYS
and
MGMT
CONSOLE/AUX
ping
.
105
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Table of Contents
Troubleshooting
