后台是tps+cm+jabber+webbex.公网映射了jabber的接入地址，用域名访问。

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How to configure WLC + LAP + ACS4.0, achieving username and password authentication and MAC address at the same time

since do command "delete disk0:"and "copy tftp flash:xxx.bin",asa5520 restart is abnormality and console port doesnot output. please help me.