Cisco CRS-1 - Carrier Routing System Router Getting Started Guide

9-2
Cisco CRS-1 Series Carrier Routing System Getting Started Guide
Chapter 9 Troubleshooting the Cisco IOS XR Software
Basic Troubleshooting Commands
Basic Troubleshooting Commands
The following sections describe some basic techniques used to determine connectivity to another device,
and to display information on the configuration and operation of a router.
• Using show Commands to Display System Status and Configuration, page 9-2
• Using the ping Command, page 9-3
• Using the traceroute Command, page 9-3
• Using debug Commands, page 9-4
Using show Commands to Display System Status and Configuration
Use show commands to check the status of various Cisco IOS XR software subsystems and services. All
show commands (except show configuration) are entered in EXEC mode. Table 9-1 lists some of the
common show commands.
To display a complete list of the available show commands, enter the show ? command to access the
onscreen help system.
Table 9-1 Common show Commands in Cisco IOS XR Software
Command Description
show bootvar Displays the boot variables.
show configuration Displays the uncommitted configuration changes made during a configuration
session. This command can be entered in any configuration mode.
show context (and show exception) Displays context information about all recent reloads.
show controller Displays hardware controller information.
show debug Displays debug flags enabled from the current terminal.
show environment [all | fans | leds |
power-supply | table | temperatures
| voltages | l]
Displays hardware information for the physical components and systems, including
fans, LEDs, power supply voltage and current information, and temperatures.
show exception Displays all exception dump configurations.
show install Displays installed and active software packages.
show interfaces Displays interface status and configuration.
show logging Displays the contents of logging buffers.
show memory Displays memory statistics.
show platform Displays information about node status on the router.
show process blocked Displays blocked processes.
show redundancy Display the status of the primary (active) Route Processor (RP) and the standby
(redundant) RP.
show running-config [command] Displays the current running configuration. This command can be entered in either
configuration or EXEC mode.

Cisco CRS-1 - Carrier Routing System Router Specifications

General

Brand	Cisco
Model	CRS-1 - Carrier Routing System Router
Category	Network Router
Language	English