Chapter 361 (1/2)
Baozixuan didn't know what happened in Xiangjiang and didn't have time to know. He is now constantly improving his network switch in the laboratory every day. He just wants to finish the paper on the network switch. Even if we can't make a real object, we should let people see the feasibility of the scheme. Only in this way can we recognize his idea and further strengthen the research in this area.
Network switch is a device to expand the network, which can provide more connection ports for the sub network in order to connect more computers. With the development of communication industry and the promotion of national economic informatization, the network switch market is rising steadily. It has the characteristics of high performance price ratio, high flexibility, relatively simple and easy to implement. Therefore, Ethernet technology has become the most important LAN networking technology, and network switch has become the most popular switch.
In a broad sense, switches are divided into two types: Wan switches and LAN switches. Wan switches are mainly used in the field of telecommunications and provide a basic communication platform. The LAN switch should be used in the LAN to connect terminal equipment, such as PC and network printer.
The main functions of the switch include physical addressing, network topology, error checking, frame sequence and flow control. At present, the switch also has some new functions, such as VLAN (virtual local area network) support, link aggregation support, and even some have the function of firewall.
In addition to connecting the same type of network, the switch can also play an interconnection role between different types of networks (such as Ethernet and fast Ethernet). Nowadays, many switches can provide high-speed connection ports supporting fast Ethernet or FDDI, which are used to connect other switches in the network or provide additional bandwidth for key servers with large bandwidth consumption.
Baozixuan's network switch papers are improving at a speed visible to the naked eye every day. With the increasing feasibility, everyone in the laboratory is shocked.
Professor clay Freeman said: ”I didn't believe there were geniuses in the world, but after seeing your performance these days, I found myself wrong. It's not that there is no genius, but that he is a mediocre person. ”
To tell you the truth, baozixuan really doesn't know how to refute it. Can I say that I came back through the Internet? These are just the most common basic knowledge of the Internet after decades, which is a principle that ordinary middle school students can understand.
Since the professors of MIT have assigned him the name of genius, it is reasonable to develop any products that amaze the world. Why not!
Bao Zixuan: ”the main reason is that you help me lay a good foundation, and my computer literacy is not low.”
Clay Freeman: ”I know you are comforting me. Any teacher in electronic technology can teach me this job. But I can't do without your unrestrained ideas. It's just that I don't know much about large switches and multi protocol routers. But a friend of mine may be able to help, but it's a little troublesome to ask him to come and help. ”
Bao Zixuan: ”Professor clay, as long as you list the names of those who can help, I'll get him at any cost.”
Clay Freeman: ”yes, your boy is a super rich. It's really not good. You can smash each other with money; The so-called trouble is because the other party is a Stanford professor. ”
Hearing this, baozixuan was stunned. How could clay Freeman recommend Stanford people. The competition between MIT and Stanford Universities in electronic technology, especially in computer science, has never stopped; All want to compete for the reputation of the world's first computer University,
Clay Freeman: ”I knew your boy would be curious, but he is one of the few engineers I have seen who can understand and prepare to tackle large switches and multi protocol routers.”
Bao Zixuan: ”you'd better say who he is! I'm not very familiar with people at Stanford. ”
Clay Freeman: ”Leonard possack.”
Hearing this name, baozixuan was surprised. Now John chambers has worked in heiyun. How can you forget such an important god!
In December 1984, Cisco Systems was founded in the United States by a couple of Stanford University Teachers: Leonard posack, director of the computer center of the computer department, and sandy Lerner, director of the computer center of the business school. The couple designed a networking device called ”multi protocol router” for the Stanford campus network, Integrate the incompatible computer LAN in the campus to form a unified network. This networking device is considered to be a sign of the real arrival of the networking era. John Chambers joined Cisco in 1991. In 1996, chambers took charge of Cisco. It was chambers who turned Cisco into a dynasty.
Leonard possack, a Dec engineer, is already a well-known figure in computer and Electronic Science in the United States. Otherwise, Stanford, the world's top two school in computer science, would not have invited him as the director of the computer center.