Background of virtual firewall

The defect of traditional firewall deployment and application is one of the backgrounds of virtual firewall, and the general development of virtualization technology is the second background of industrial driving force. The main disadvantage of traditional firewall application is that 1 is biased, which leads to the need for enterprises to deploy multiple independent firewalls, resulting in high cost of ownership and maintenance. 2. Multiple independent firewalls will occupy more rack space. 3. This increases the complexity of network management.