Cisco Cisco Access Registrar 4.2 Especificações descarregar pdf (Página 582)

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D-10

Cisco Wireless LAN Controller Configuration Guide

OL-13826-01

Appendix D Troubleshooting

Monitoring Memory Leaks

Step 3 To specify the username and password for FTP login, enter this command:

config coredump username ftp_username password ftp_password

Step 4 To save your changes, enter this command:

save config

Step 5 To see a summary of the controller’s core dump file, enter this command:

show coredump summary

Monitoring Memory Leaks

This section provides instructions for troubleshooting hard-to-solve or hard-to-reproduce memory

problems.

Caution The commands in this section can be disruptive to your system and should be run only when you are

advised to do so by the Cisco Technical Assistance Center (TAC).

Using the controller CLI, follow these steps to monitor the controller for memory leaks.

Step 1 To enable or disable monitoring for memory errors and leaks, enter this command:

config memory monitor errors {enable | disable}

The default value is disabled.

Step 2 If you suspect that a memory leak has occurred, enter this command to configure the controller to

perform an auto-leak analysis between two memory thresholds (in KB):

config memory monitor leaks low_thresh high_thresh

If the free memory is lower than the low_thresh threshold, the system crashes, generating a crash file.

The default value for this parameter is 10000 KB, and you cannot set it below this value.

Set the high_thresh threshold to the current free memory level or higher so that the system enters

auto-leak-analysis mode. After the free memory reaches a level lower than the specified high_thresh

threshold, the process of tracking and freeing memory allocation begins. As a result, the debug memory

events enable command shows all allocations and frees, and the show memory monitor detail

command starts to detect any suspected memory leaks. The default value for this parameter is 30000 KB.

Step 3 To save your changes, enter this command:

save config

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