High-performance fourth-generation Internet cafe router Study Notes

I believe that users who have used the fourth-generation Internet cafe routers will think that the performance is very good and the processing capability is strong. from the birth of the Internet cafe to the present, the network of the Internet cafe has undergone earth-shaking changes, from the initial silly routing to the popular elastic bandwidth routing. The requirement for updating hardware to software is getting higher and higher. Next we will analyze how to make the fourth-generation Internet cafe router more perfect. First, let's analyze the hardware and software development of the fourth generation Internet cafe router:

1: hardware development of the fourth generation Internet cafe Router

The first generation of SOHO broadband routers has a low price with a small volume of machines, few professional functions, and lack of security functions.
 
The second generation of enterprise-level extended routers have strong processing capabilities, a certain number of Internet cafe routing features have not yet met the requirements, and professional functions are relatively lacking.

The hardware configuration and processing capabilities of the third-generation vro are insufficient.

The fourth generation of professional Internet cafe routers have high configuration, strong processing capabilities, and are completely designed for Internet cafe applications. The price is relatively high.

At the beginning, there were a small number of machines in the Internet cafe, which had relatively low requirements on hardware. Basically, they used a route over dummies, and only needed the NAT Function. With the development of Internet cafes, the number of Internet cafes is growing and the requirements for Route processing are increasing. However, there was no professional fourth-generation Internet cafe router at that time, so we should replace it with enterprise routes, it can basically meet the current needs. By the third generation of routing, ROS is quite popular, and hardware configuration problems can be completely solved, so you don't have to worry about too many clients and data processing problems. You can change the CPU and large memory at any time. However, ROS is not designed for professional Internet cafes. Some targeted functions and management problems are gradually replaced by the fourth-generation Internet cafe routers. The hardware of the fourth-generation Internet cafe router is powerful enough, from the smallest 1g dual-core to the 1G16 core, and is fully functional for Internet cafe applications, it also solves the problem that ROS is difficult to connect to dual-line or multi-line connections.

2: Development of core software for Internet cafe Routing

The bandwidth of the first-generation traffic-free management router uses a high bandwidth for a single application to occupy the bandwidth of other applications, which affects the quality of Internet access and cannot be guaranteed for key applications.

Each user of the Second Generation throttling router can ensure that the appropriate bandwidth utilization is low, especially when idle, key applications are not guaranteed.

In the third generation elastic bandwidth routing, each user allocates the total bandwidth on average. The bandwidth utilization is relatively high, but it is still not perfect. When there are many people, the traffic will still be stuck, and key applications will still not be guaranteed.

The fourth-generation Traffic Shaping router has a high bandwidth utilization rate around the clock, and key applications are never stuck.

The first generation of routing basically uses SOHO routes with a small number of machines and without any function. As long as an application BT or Xunlei needs to occupy a large amount of bandwidth, the bandwidth of other key game applications and web pages will not be guaranteed, and there will be a problem of card or slow speed. With the defects of the first generation of routes, the second generation of Internet cafe routes-traffic limiting routers (vrouters) emerged, that is, the total bandwidth of Internet cafes is evenly allocated to each computer. The advantage is that everyone can ensure their own Internet bandwidth, however, bandwidth is wasted when the number of users is small or idle, that is, the bandwidth cost of the boss is wasted. On the other hand, users who download data to the high speed cannot enjoy the high-speed experience.

In theory, the emergence of third-generation routes has improved the bandwidth utilization of Internet cafes. The core technology is elastic bandwidth, dominated by feiyuxing's 6200 and ruijie's NBR2000. Elastic bandwidth is based on the current number of online computers by the number of online IP addresses), the current number of online NAT bandwidth is allocated on average. It seems that there is no waste of Internet bandwidth, but in fact, it only slightly improves the bandwidth utilization than the second-generation route, and the Internet bandwidth has not completely reached 100%.

For a simple example, the bandwidth of an internet cafe is 10 M. When there are currently only two computer IP addresses in the internet cafe), the elastic bandwidth function will allocate an average bandwidth of 10 M, with each computer having 5 M, one computer is playing the game, and the other computer is downloading a large number of files in BT. We know that playing the game generally does not require much bandwidth, but 5 MB is still a waste of bandwidth for playing the game. Therefore, elastic bandwidth does not solve the problem of making full use of Internet bandwidth. At this time, the fourth generation of Internet cafe router-Traffic Shaping router emerged. The following is a detailed description of the working principle of traffic shaping ):

In traffic shaping technology, all applications in Internet cafes are investigated in detail and set by priority. Internet cafe applications are divided into game, QQ, webpage, and download categories. According to the bandwidth requirements and priority guarantees of these categories in Internet cafes, the game has the right to use the bandwidth first, the web page browsing, And the download. This means that all the bandwidth is prioritized to ensure that the remaining bandwidth after the game is forwarded to the web page, and the browsing web page is forwarded first. All the remaining bandwidth after the web page is browsed can be allocated to the download. This ensures that all Internet cafes use 100% of their bandwidth around the clock, and the bandwidth of key applications is also guaranteed. Traffic Shaping Technology also brings a series of additional advantages:

In the previous generations of routes, most of the Internet cafe Network Management Systems Update games and movies at night and when there are few people at night, the fourth-generation Internet cafe router using Traffic Shaping Technology can download and update all the time. Let's take a simple example: The Transformers movie was released at a.m. on Saturday. The file size is 2 GB, and there are a large number of Internet users on Saturday. I want to download the movie in time when I use the internet cafe with the first three generations of routes, even if downloading affects the Internet access of Internet cafe customers, the download time is still selected at night, while using Traffic Shaping Internet cafes ensures normal Internet access for existing users first, the remaining bandwidth is used to download this movie. In this way, we have the advantage of one step ahead of time. customers who have seen this movie will pass through 10 or 10, which will bring more benefits to Internet cafes. The same applies to games.

In the case of multi-Wan port routing, the current brand can only achieve 1 + 1 slightly greater than 1 in bandwidth utilization, that is to say, my Internet cafe has two bandwidths, each of which is 10 M, currently, multi-Wan routing can only use a bandwidth of more than 10 Mbps. While using a Traffic Shaping router, because of its characteristics, the bandwidth can be used to reach around 18 m. The birth of the fourth generation of Internet cafe routers will inevitably lead to innovations in Internet cafe routes, and the first three generations of routes will be eliminated. Let's wait and see