Troubleshooting port security, Cannot set the port security mode, Enabling qos pre-classify – H3C Technologies H3C S12500-X Series Switches User Manual

H3C S5560 Series Switches, H3C WX6000 Series Access Controllers, H3C WX5000 Series Access Controllers, H3C WX3000 Series Unified Switches, H3C LSWM1WCM10 Access Controller Module, H3C LSWM1WCM20 Access Controller Module, H3C LSQM1WCMB0 Access Controller Module, H3C LSRM1WCM2A1 Access Controller Module, H3C LSBM1WCM2A0 Access Controller Module, H3C S9800 Series Switches, H3C S5130 Series Switches, H3C S5120 Series Switches