Firewall performance has been a subject of study in only few studies. Lesser work is even done within the field of analyzing firewall performance. Mostly, the available work is of the consideration to enhance the management of configuration related to firewall systems and detect whether any configuration has been missed. The firewall performance has been studied by researchers such as Salah et al. through use of a model named, analytical queue model based upon the chain of Markov. Firewalls are analyzed by this methodology subjected to general flow of traffic along with the flow of attack for DoS. Several kinds of operations of firewalls were examined by other researchers such as Asmi et al. (2012). In the study, the researchers tested the various firewalls performance as well as security inclusive of Cisco, ASA, filter of packet and SPLAT checkpoint.
With regard to performance, only the throughput was considered by the researchers along with the maximum concurrent relationship number. The research results from the investigation depicted that ASA Cisco has a performance which is good in comparison to the other types involved in the study. When it comes to security, simple tests were performed by them and it was reported by them that firewalls have showed a good type of resistance.
The influence of firewall implementation over the performance of networks has been studied by researchers such as. Their results from simulation depicted that use of firewalls enhances the display of networks and average time from response. They suggested, moreover, that use of firewalls of parallel nature is essential for performance of network’s improvement. The results of simulation resulted in proving that firewalls result in degrading the network performance on the whole.