Juniper CBL-M40-PWR-AU ユーザーズマニュアル
Troubleshooting Overview
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Chapter 15
Troubleshooting Overview
This chapter provides an overview of the resources you can use while troubleshooting
problems with the router:
problems with the router:
For information about troubleshooting problems with specific hardware
components—including the cooling system, power supplies, and the Packet Forwarding
Engine—see the subsequent chapters in this document. If you encounter problems with
other router components, including the Routing Engine, contact the Juniper Networks
Technical Assistance Center (JTAC) as described in “Juniper Networks Technical Assistance
Center” on page 194.
components—including the cooling system, power supplies, and the Packet Forwarding
Engine—see the subsequent chapters in this document. If you encounter problems with
other router components, including the Routing Engine, contact the Juniper Networks
Technical Assistance Center (JTAC) as described in “Juniper Networks Technical Assistance
Center” on page 194.
Command-Line Interface
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
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 craft interface. There is a port labeled
Routing Engine through ports on the craft interface. There is a port labeled
CONSOLE
for
attaching a system console, a port labeled
AUXILIARY
for attaching a laptop, modem, or other
auxiliary device, and a port labeled
MANAGEMENT ETHERNET
for attaching to a management
LAN. For more information, see “Routing Engine LEDs and Interface Ports” on page 19.
For information about using the CLI to display details about alarms generated by interfaces
and hardware components, see “Hardware and Interface Alarm Messages” on page 192.
and hardware components, see “Hardware and Interface Alarm Messages” on page 192.