New trend of Campus network

Campus Network has experienced more than more than 10 years of popularization and development, its bandwidth is increasing, the application gradually increases, the function unceasingly consummates, has become the school management, the teaching and the scientific research work indispensable hardware and software Foundation platform. The gradual increase of network bandwidth makes video conferencing, VOD, and remote interactive teaching possible, and the requirements of transmission speed and network bandwidth in these applications promote the continuous development of network technology.

In the rapid development of science and Technology today, 2007 will be an extraordinary year. New technologies and new products will continue to emerge in the year, and Internet applications will be more complete. Looking forward to the development trend of the 2007 campus network, the following key words are mainly:

Million trillion

Many schools have already built their own campus network as early as the early 1990s, with the network bandwidth and network application gradually increasing, the core layer of the campus network has been developed from hundred trillion to thousand trillion, finally is million trillion, 100,000 trillion network bandwidth. Although the standard of network equipment facing 100,000 gigabit platform is immature, this product indicates that our country has taken a key step in the research and development of network equipment. In the education industry, the university has become the leader of the campus network construction with its strong economic strength and strong application demand. Most colleges and universities have experienced over three network upgrades, expanding network bandwidth and adding new applications (Vote, video conferencing, etc.).

The current high-end switch equipment can provide up to 9.6Tbps of backplane exchange capability, each line card and backplane connection bandwidth up to 300Gbps, to meet each line card 1OOGbps interface of the wire speed processing casting, and each line card support up to 10 Wan mouth of the wire speed forwarding needs, It can meet the demand of high-density Wan of core equipment after Universal Mega.

2007 is a 100,000-gigabit platform for the development of network equipment, because currently only approved the new 1OOGbps High speed Ethernet standard recommendations, and the 100,000-gigabit platform for the relevant standards for at least a year or two to be introduced, so 2007 100,000 Gigabit network device application is not too much, is still in the stage of continuous development and improvement. and million gigabit network because it provides a richer bandwidth and processing capacity, and maintain the Ethernet consistent compatibility and easy to use, upgrade easy features, will be more popular, 2007 Campus network will be the overall trend of the million trillion down and million product port density.

As the only national academic network, IPV6 CERNET2 is the largest next generation Internet backbone with pure IPV6 technology in the world. CERNET2 since the creation of the news, first of all groundbreaking to put forward the IPV6 source address authentication, for the next generation of Internet security, it set the Tomb Foundation; at the same time, the first large-scale use of the national backbone network of domestic IPV6 routers, and the first proposed IPV6 over IPV4 transition Technology program, Provides an important solution to the transition of the first generation of internet and second-generation Internet. These achievements are inseparable from the efforts of major universities and scientific institutions, universities such as Hainan Normal University have set up a campus network based on IPV6, but IPv6 has not been completely transformed because of no "killer" application, and is still in the construction of infrastructure and the exploration of new applications.

At present, the major network manufacturers have passed IPV6 ready the first phase and the second phase of the certification. As the standard for IPV6 has been basically mature, the network product manufacturers to develop new products all take into account the future development of IPV6, so the use of dual-stack protocol compatible IPV4 and IPV6, and constantly introduce the next generation of IPV6 high-end core routing switches. In the same way, the schools that are now upgrading their network are also taking into account the future development of IPV6, and adopting compatible IPV6 equipment, reserving space for the popularization of IPv6 in the future.

IPV6 related technologies and applications will be further developed in 2007, although the transition to IPv4 to IPV6 is unlikely to be fully realized, but IPv4 address crisis and IPV6 in Peer-to-peer content access applications, high-performance video transmission, The application advantages of shared virtual reality and distributed multimedia communication system will accelerate the transition from IPV4 to IPV6. The full transition from IPV4 to IPV6 is only a matter of time.

Wireless

With the improvement of wireless network technology and the popularity of laptops in the campus, many schools have wireless networks as a wired network expansion and supplement, so that teachers can bring their own notebook computer conveniently in the multi media class, can let students freely in the classroom, library and playground to find information, can use the mobile phone anytime, anywhere to browse the Web, looking for the resources ...

Wireless networks are always in the role of wired networks, in fact, many schools have implemented wireless office, wireless library, or in the dormitory building a wireless network, but not a school entirely by wireless network instead of wired network. With the development of wireless technology, wireless network is playing a more and more important role, 2007 will be the rapid development of wireless network for a year, the development of wireless paper, network management software for wireless and billing certification system to improve the wireless network gradually out of its own restrictions, and gradually walk into the school, walk into everyone's life. At present, based on the 802.11g product speed has reached 108Mbps, covering the largest range of indoor about 200m, about 500m outside. Products based on 802.11n protocol are now available, as 802.11g successor, 802.11n with higher bandwidth and stronger security performance, if the standard to pass, then wireless products can be completely independently.

Wireless network instead of wired network although it is the general trend, but in 2007, the cable network and wireless network complementary situation will continue, the difference is, with the increase in wireless bandwidth and security, wireless network in the proportion of the growing, More schools and individuals will use wireless networks as a necessity for work and life.

Grid

Grid is hailed as the third wave of information technology following the Internet and the Web. In fact, the reason why grid technology can cause such a wide discussion in society is that grid can use many idle CPU resources to form high-performance computing power. However, this requires that the computer hardware and software of grid technology support grid technology to form the regulation effect. Since 2002 Grid computing was selected as the "863" plan, the research on grid in our country is limited to universities, research institutions and related enterprises. In 2006, the project of "National basic education Grid Application Model" based on IPV6, which is the main contractor of the affiliated secondary school of Renmin University, is the first to open a high school research grid application for the purpose of promoting the sharing of basic education resources, so we can see that the grid is also promising in campus application. However, in general, the application of grid technology is still very rare, the actual application to enter the school is only a handful.

In the 2007, the urgent task of promoting the development of network technology in schools is to find more application points, to promote the development of technology by demand, and to promote the popularization of new research results on campus. For the development of Grid computing, it is very important to set up a universal standard of grid service, to integrate grid computing with current Web services, and to develop standardization, technology integration and large direction.