Using Debug Commands - Cisco Router IOS XR Getting Started Manual

Chapter 7 Troubleshooting the Cisco IOS XR Software
Examples
In the following example, the route for an IP address is displayed:
RP/0/RP0/CPU0:router# traceroute 10.233.233.233
Type escape sequence to abort.
Tracing the route to 10.233.233.233
1
2

Using debug Commands

Debug commands are used to diagnose and resolve network problems. Use debug commands to
troubleshoot specific problems or during troubleshooting sessions.
Use debug commands to turn on or off debugging for a specific service or subsystem. When debugging
is turned on for a service, a debug message is generated each time the debugging code section is entered.
The following sections provide information on debugging:
•
•
•
•
Debug commands can generate a very large amount of output and can render the system unusable. Use
Caution
debug to troubleshoot specific problems or during specific troubleshooting sessions on systems that are
not in production.
Displaying a List of Debug Features
To display a list of the available debug features, enter the debug mode and enter a ? for on-screen help.
The set of debug mode features is different in EXEC and administration EXEC modes. In the following
example, EXEC mode is the entry point to debug mode:
RP/0/RP0/CPU0:router# debug
RP/0/RP0/CPU0:router(debug)# ?
aaa
adjacency
adjacency
aib
alarm-logger
arm
arp
asic-errors
asic-scan
--More--
In the next example, administration EXEC mode is the entry point to debug mode:
RP/0/RP1/CPU0:router# admin
RP/0/RP1/CPU0:router(admin)# debug
RP/0/RP1/CPU0:router(admin-debug)# ?
OL-10957-02
172.25.0.2 11 msec 2 msec
192.255.254.254 1 msec
Displaying a List of Debug Features, page 7-5
Enabling Debugging for a Feature, page 7-6
Disabling Debugging for a Service, page 7-7
Displaying Debugging Status, page 7-6
AAA Authentication, Authorization and Accounting
Adjacency debug
platform AIB information
AIB information
Turn on alarm debugging
IP Address Repository Manager
IP ARP transactions
Debug ASIC erors
Debug Asic Scan
1 msec
* 2 msec
Basic Troubleshooting Commands
Cisco IOS XR Getting Started Guide
7-5