Can I say goodbye to dynamic routing?

With the continuous development of routing technology, dynamic routing technology is also widely used. Here we mainly introduce the development status and history of dynamic routing technology. The Internet has passed its 40-year-old birthday. Although the media is not surprised by the report, the middle-aged crisis has indeed come, one of them is one of the core technologies that have been advertised and touted as "Dynamic Routing Technology". It is the "key" for the Internet to defend against core attacks ".

The so-called dynamic routing technology means that the path between two endpoints of communication in the Internet can be completely different from that of the telephone network ). The network system can automatically find paths without network faults. Only when the communication endpoint fails will the communication on the Internet be interrupted. The typical Dynamic Inter-Domain Routing Technology is BGP-4, and the domain is OSPF and ISIS.

The direct result of dynamic routing technology is: Compared with the telephone network, the router is extremely complex and cannot be done anymore. At present, there are more than 0.3 million global routes and there is no signs of slowing down. Of course, the training of CCNA can also get on fire, and the threshold for developing enterprises to enter such complicated technical fields is too high. After studying this issue, Ipbaobao believes that only dynamic routing technologies were used in the past, and there were about five original ones:

1) The Internet is experimental. Even if you realize that you need to make network planning, you cannot make unified planning and do not know how to do network painting. As a result, the Internet does not have a basic network architecture, unpredictable paths can only be dynamic;

2) the network is not planned. Of course, there is only a lack of unified planning for Address Allocation which is closely related to this. No one can predict in advance where these addresses are located and who will own them, after allocation, you can only know the approximate location and owner;

3) in those years, the telecom technology was not developed, FR and optical communication were not practical, and the links at the bottom of the Internet were unreliable. 4) routers were pre-built based on common servers and were not reliable, in addition, the software is basically led by a group of students;

4) for non-commercial operations, interconnection nodes and links are operated by schools and research institutions and may be closed at any time;

5) Political flickering needs. The network is the center of war command, while during the Cold War, the American network cannot beat down the core attack. Can the Soviet Union be nervous?

There may be more reasons, but at least these five are obviously in doubt: 1) the network needs to be planned and can also be planned; otherwise, the consequences will be very serious; 2) you can plan the IP addresses in a unified manner. 3) the underlying link is reliable. 4) the router hardware and software are dedicated. In the last article, ipbaobao will write a specific article to clarify that it is purely a flicker. On the contrary, APPA was severely criticized by the military for its efforts. More and more research and evidence show that the Internet needs to talk about Byebye to dynamic routing technology.