WLC和思科的路由器交换机不同，Cisco的WLC采用的是AireOS.
如果WLC crash或无故重启，可以尝试采集如下信息：
AireOS WLC version 8.0.140.0 or higher
WLC Model 2504/5508/5520/7500/8500/8540/WISM
WLC>config paging disable
WLC>show tech
WLC>show memory his
WLC>show memory mbuf
WLC>show coredump summary
WLC>config paging enable
如下操作，是如何查看coredump文件，并且如何导出：
1、通过命令show coredump summary 查看
(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
2、导出core dump
使用TFTP工具：
(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
使用FTP工具还需要用户密码
(Cisco Controller) >transfer upload username username
(Cisco Controller) >transfer upload password password
(Cisco Controller) >transfer upload port port （默认21）
其他辅助：例如如果有外部的日志服务器，可以导出WLC的日志文件，可以查看对应的log。
操作示例参考：https://thewlan.com.au/2016/11/09/wlc-transfer-coredump/