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How to Find & Retrieve WLC's crash coredump from its's flash to external FTP/TFTP server


[toc:faq]

 

Introduction

How to Find & Retrieve WLC's crash coredump from its's flash to external FTP/TFTP server.

Show Coredump Summary - Output

(WiSM-slot8-1) >show coredump summary

Core Dump is enabled

FTP Server IP....................................  128.172.193.253
FTP Filename.....................................  Poca-WiSM-1_cd
FTP Username.....................................  mcdaviddj
FTP Password..................................... *********

Core Dump file on flash:

SW Version....................................... 7.3.101.0
Time  Stamp....................................... Mon Apr 15 15:00:51 2013
File  Size........................................ 62563632
File Name  Suffix................................._7.3.101.0_Poca-WiSM-1_1366052451.gz  =======> Core Dump of crash stored in Flash

Transferring CoreDump file 

If there is a coredump file available then transfer to external FTP/TFTP  server. To transfer the file from the controller to a server, enter these  commands: 

(Cisco Controller) >transfer upload datatype coredump
(Cisco  Controller) >transfer upload filename <desired filename>
(Cisco  Controller) >transfer upload mode <tftp/ftp>
(Cisco Controller)  >transfer upload serverip <ip>
(Cisco Controller) >transfer  upload start

(You may need to specify file path as well, and username/password for  FTP)

If you are using an FTP server, also enter these commands:

(Cisco  Controller) >transfer upload username username
(Cisco Controller)  >transfer upload password password
(Cisco Controller) >transfer upload  port port


The default value for the port parameter is 21.

To view the updated settings, enter this command:

(Cisco Controller)  >transfer upload start

When prompted to confirm the current settings and start the software upload,  answer y.

After the file is uploaded, it ends with a .gz suffix. If  desired, you can upload the same core dump file multiple times with different  names to different servers.

Currently, it is cli only and no gui option.

Version history
Revision #:
1 of 1
Last update:
‎05-08-2013 04:57 PM
Updated by:
 
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Comments
New Member

Thank you for the useful post.

:-)

New Member

Hi,

Please! How to open a CORE DUMP file (CISCO WLC) for check?