Aiming at the problem of network security for the financial industry, the paper puts forward the introduction of Multiple Spanning Tree Protocol(MSTP) and Virtual Router Redundancy Protocol(VRRP) to solve the problem of network loop and implement dual-machine backup, and it also designs specific solutions for financial enterprises according to the working principle of MSTP and VRRP protocol. The results show that MSTP and VRRP technology have improved the reliability of the network, reduced the failure rate...