Improve the network performance by using parallel firewalls

The network security nowadays has become a major priority for both network design and implementation to protect the valuable applications, sensitive data, and network resources from unauthorized access. The firewall is one of the network security devices which effective in defending known intrusions. This paper provides an overview of network firewalls, its importance, and different types of network firewalls, studying the effect of implementing the firewall on the network performance and how using parallel firewalls. We note that by using parallel firewalls the network performance is improved in order to limit the network delay and average response time.