Performance metrics of the firewall, the main performance metrics of the firewall

The performance indicators of the firewall need to be monitored by the corresponding software.

Because the performance index of the firewall reaches more than 60%, it is relatively safe for the device.

Generally, the performance indicators of the firewall should reach the above, and the higher the level of the firewall, the better.

Different brands are different, and ** is also different.

The primary performance metric of a firewall is throughput.

Throughput refers to the amount of data (measured in bits, bytes, packets, etc.) that is successfully transmitted per unit of time to a network, device, port, virtual circuit, or other facility. Refers to the maximum data rate at which a device can receive and ** without frame loss.

With the increasing popularity of the Internet, the demand for intranet users to access the Internet is increasing, and some enterprises also need to provide services such as page browsing, FTP file transfer, DNS domain name resolution, etc., which will lead to a sharp increase in network traffic, and the firewall is the only data channel between the internal and external networks.

If the throughput is too small, it will become a network bottleneck and negatively affect the transmission efficiency of the entire network. Therefore, examining the throughput capacity of a firewall can help us better evaluate its performance. And it's also an important metric to measure firewall performance.

The size of the throughput is mainly determined by the efficiency of the network card in the firewall and the program algorithm, especially the program algorithm, which will make the firewall system perform a large number of calculations and reduce the traffic volume. Therefore, although most firewalls claim to be 100M firewalls, the traffic volume is far from 100M because their algorithms rely on software implementation.

1) At this stage, there are hundreds of access policies configured in the firewall, and manually checking the compliance of these access policies not only consumes a lot of time and manpower, but also is prone to errors.

2) The firewall itself will erect a large number of policy hits to make statistics, and if a policy does not work for a long time, the number of policy hits will be displayed as zero. According to the information security requirements, the firewall needs to be restarted and switched on every month. After the switchover is restarted, the number of policy hits of the firewall is cleared.

At this point, it is impossible to distinguish between valid and ineffective policies, which are related to the operation of the global production network and have a significant impact.

3) Some firewall policies do not have the export function, which affects the efficiency of security analysis and security audit.

4) There are many fields in each log information output by the firewall, and the amount of information data generated every day is huge, and the log elimination file is in the format of a text file, which is not conducive to the query and analysis of firewall logs.

1. The application layer throughput of the firewall is no longer suitable for the next-generation firewall to measure its performance by the throughput of the network layer.

2. Whether the functions you need are complete and perfect, for example, the traditional firewall cannot identify threats from the application, so the selected next-generation firewall has a high recognition rate for the application.

3. There is also whether it can be actively defended, which is also what the next-generation firewall has.

At present, there are many firewall products on the market, and the classification standards are also relatively miscellaneous. The main classifications are as follows:1

Software and hardware forms: software firewalls, hardware firewalls, and chip-level firewalls. 2.There are two types of firewall technologies: "packet filtering" and "application".

3.Firewall structure There are three types of firewall structure: single-host firewall, router-integrated firewall, and distributed firewall. 4.

Application Deployment Locations of Firewalls There are three types of firewalls: perimeter firewalls, personal firewalls, and hybrid firewalls. 5.Firewall performance There are two types of firewall performance: 100-gigabit firewall and gigabit firewall.