Method, device and equipment for checking switch configuration and medium

The invention discloses a method and device for checking switch configuration, equipment and a medium. The method comprises the steps that a user name and a password of a security shell protocol and an IP address of a switch are stored in an SDN device; a WEB front end in the SDN device issues a switch configuration information query task to a southbound interface in the SDN device; the southboundinterface issues a corresponding first security shell protocol instruction to the switch according to the switch configuration information query task, the IP address of the switch and the user name and password of the security shell protocol; the southbound interface receives the current configuration information of the switch sent by the switch according to the first secure shell protocol instruction; the southbound interface sends the current configuration information of the switch to the WEB front end, and the WEB front end checks the current configuration information of the switch; or, the WEB front end calls a p