What do you mean by current limiting?

There are three main types of traffic restrictions:

First, traffic restrictions.

It is to directly restrict network traffic, which is usually the most severe traffic restriction. 10 G traffic generally supports online within 50 people. After the monthly traffic exceeds, the website cannot be accessed normally within one month. The solution is to upgrade the space or increase the traffic.

Second, CPU limitations.

CPU restriction does not seem to restrict IIS or network traffic, but it is also a disguised traffic restriction because each program needs a certain CPU quota to run. Usually there are too many web pages displayed on the Internet because the CPU quota is too small! After refreshing or 15 seconds, temporary normal operation can be obtained. Usually 1% CPU limit is equivalent to 20 IIS connections! This is very important for the forum space. Once the CPU limit of the forum is too small, it will not work properly.

Three. IIS restriction

IIS is the most widely used restriction at present, and it is also recognized by most users or host manufacturers. This is the only loose traffic restriction. Generally, 20 IIS are equivalent to 1% CPU utilization.

Network flow control-control implementation

With the rapid development of network technology, network-based applications are becoming more and more complex. A wide variety of applications are devouring more and more network resources. As a new media carrier, the network is also being impacted by the media.

In particular, the penetration of Internet by online video, personal media, traditional TV and other media has led to a sharp increase in network traffic and greatly increased the operation and management costs of operators. Operators can control network traffic by current limiting, but it also limits the development of network media, which is not conducive to the further development of the Internet. Therefore, developing a new technology to control network traffic has become a research hotspot.

At present, Internet traffic is mainly generated by P2P and HTTP. It is estimated that these two kinds of traffic have accounted for more than 70% of the total traffic, and they are still rising. Therefore, the focus of traffic control is P2P and HTTP, and reducing the traffic generated by these two protocols will effectively reduce the overall network traffic.

By comparing various network flow control systems, an optimal system is adopted. The system is deployed at the network exit to cache P2P and HTTP traffic, and subsequent requests for the same resource will get cached responses, thus reducing network traffic, saving bandwidth and improving user experience.

Refer to the above? Baidu Encyclopedia-Flow Control