Troubleshooting guide

D-3

ATM and Layer 3 Switch Router Troubleshooting Guide

OL-1969-01

Appendix

Using the write core Command

You can create test core dumps by using the write core privileged EXEC command. If you use this

command, the switch router generates a core dump without reloading, which is useful if the switch router

is malfunctioning but has not crashed.

Caution Use the write core command only under the direction of a technical support representative. Creating

a core dump while the switch router is functioning in a network can disrupt network operation. The

resulting binary file, which is very large, must be transferred to a TFTP, FTP, or rcp server and

subsequently interpreted by technical personnel who have access to source code and detailed memory

maps.

Depending on your TFTP server, you might need to create an empty target file to which the switch router

can write the core dump.