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7-3
Cisco IOS XR Getting Started Guide
OL-10957-02
Chapter 7 Troubleshooting the Cisco IOS XR Software
Basic Troubleshooting Commands
Using the ping Command
Use the ping command to diagnose network connectivity. In EXEC mode, enter a hostname or an IP
address as an argument to this command. In administration EXEC mode, you can use the fabric or the
control Ethernet network (in a multishelf system) to ping other nodes.
The ping command sends an echo request packet to a destination, then awaits a reply. Ping output can
help you evaluate path-to-destination reliability, delays over the path, and whether the destination can
be reached or is functioning.
show interfaces
(EXEC mode)
Displays interface status and configuration.
show logging
(EXEC and administration EXEC
modes)
Displays the contents of logging buffers.
show memory
(EXEC and administration EXEC
modes)
Displays memory statistics.
show platform
(EXEC and administration EXEC
modes)
Displays information about node status on the router. To display the nodes assigned
to an SDR, enter this command in EXEC mode. To display all the nodes in a router,
enter this command in administration EXEC mode.
show processes blocked
(EXEC and administration EXEC
modes)
Displays blocked processes.
show redundancy
(EXEC and administration EXEC
modes)
Display the status of the primary (active) route processor (RP) and the standby
(redundant) RP.
show running-config [command]
(EXEC and administration EXEC
modes)
Displays the current running configuration.
show tech-support
(EXEC and administration EXEC
modes)
Collects a large amount of system information for troubleshooting. The output should
be provided to technical support representatives when a problem is reported. Because
of the impact the command can have on a running system, it is reserved for users
assigned to the cisco-support task ID.
show user [group | tasks | all]
(EXEC mode)
Displays the username for the current logged-in user. Use this command to also
display the groups and associated task IDs assigned to the account.
show version
(EXEC and administration EXEC
modes)
Displays basic system information.
Table 7-1 Common show Commands in Cisco IOS XR Software (continued)
Command Description