With the deepening of China's informatization, educational informatization has received unprecedented attention. At present, many colleges and universities in China have established their own campus networks. The campus network enables schools to keep abreast of information at home and abroad, which is helpful to improve the teaching level; on the other hand, the management information system established on the basis of the campus network is conducive to the improvement of the school's overall management level. Among them, the campus network jointly built by Ruijie Networks and Liaocheng University provides a good model for the construction of university networks.
Looking ahead and planning the future
With the rapid development of Liaocheng University, the campus network built earlier by Liaocheng University can no longer meet the high-speed development of the school. The leaders of Liaocheng University in Shandong are far-sighted and fully anticipate the social benefits that the Internet will bring to the school. The modern computer information network system makes full use of the existing equipment while reducing the amount of repeated investment.
The overall goal of the school is to provide teachers and students with the most practical, advanced and efficient comprehensive solutions based on the protection of existing investments, and to realize teaching informatization, office automation, information resources, transmission network and management Scientific modern school goals. The selection of network equipment requires mature and advanced technology to make a good plan for the future network.
Regarding the formulation of the specific networking plan for this project, Liaocheng University requires the campus network to adopt international standard network protocols, combine application needs, protect existing investments, interconnect with the old campus network, and connect to the Internet through high-speed channels; in order to improve teaching efficiency and Quality, connect to the Internet in schools, establish information systems that support educational activities, including WWW, FTP, DNS, database servers, mail systems, e-books, etc., and have the characteristics of information sharing, rapid transmission, convenient use, high efficiency, etc. Processing system; realize paperless office, implement OA system in the school's main functional departments to improve office efficiency. In addition, the system should have high reliability, security, maintainability and expandability, and a good user interface; the core switch needs to support the second-generation 10 Gigabit technology and can be smoothly upgraded to the 10 Gigabit campus network. Finally, due to the distance between the old and new campuses of Liaocheng University, there may be some failures in the link. Therefore, the school requires that the network unavailability caused by the link failure be reduced at the device level.
Ruijie sends troops to lead 10 trillion
After careful comparison, analysis and selection, Liaocheng University believes that Ruijie Networks, as a leading domestic network equipment and solution provider, can satisfy its needs with its solutions. So finally decided to use the whole network solution and network equipment provided by Ruijie Networks. The specific network is as follows:
As shown in the figure, the Ruijie RG-S6810 10G core routing switch was selected for the network center equipment. Ruijie RG-S6810 and the original two switches form a double ring network. Through this design, the reliability of the network is greatly improved, and the failure of some links will not affect the normal use of the network.
RG-S6810 is a fully modularized, high-density port Ruijie 10G core routing switch, which can be flexibly configured according to user needs and flexibly build a flexible and scalable network. The RG-S6810 switch's backplane bandwidth up to 512G and the 286Mpps Layer 2 / Layer 3 packet forwarding rate can provide users with high-speed non-blocking switching. The powerful switching routing function and security and intelligent technology can cooperate with Ruijie series switches for users Providing a complete end-to-end solution, it is an ideal choice for large network core backbone switches.
RG-S6810 has super data processing capabilities. RG-S6810's complex functions such as switching, routing, ACL, and QOS are implemented by hardware, avoiding the impact of software implementation of the same function on high-speed data processing. The interface module can independently implement hardware routing, switching and multicast functions; the user switching port independently implements hardware ACL and QOS functions, and the synchronous processing design (SPOH design) greatly improves the processing capacity of the entire machine. SPOH technology is an important guarantee for the stability and efficiency of core switches.
RG-S6810 supports the control of network viruses, which can control the spread of network viruses during the outbreak of network viruses, reduce the consumption of network bandwidth resources by network viruses, and ensure the normal availability of the network. In addition, RG-S6810 can restrict users to use the network according to time, for example, some networks are automatically shut down after work (which can be configured according to specific circumstances), which effectively guarantees the security of the network. RG-S6810 can also filter data that is not required for business, and the settings of the switch can restrict some computers from transmitting content that is not required for work on the network.
All have a brilliant record
Ruijie Networks combined with the actual situation of Liaocheng University, considered from various aspects, adopted a series of multi-level design, perfectly realized the high efficiency, stability, security and scalable performance of the campus network, and wiped out the needs of the school. The design features are as follows:
Stable and reliable design. Due to the huge data traffic in the metropolitan area network and the large number of critical traffic, the reliability and stability of the entire network system are very important, and the design concept of Ruijie network operation level ensures the high stability and reliability of the system.
High performance design. All switches of Ruijie Networks support rich QoS functions, which can ensure that important services are not delayed or discarded, and at the same time make full use of the existing bandwidth to ensure the efficient operation of the network.
Highly scalable design. The expansion capability of the network includes the expansion capability of the switching capacity of the device, the expansion capability of the port density, the expansion of the backbone bandwidth, and the expansion capability of the network scale. The powerful expansion capability of network equipment can effectively protect the investment in equipment construction and facilitate the expansion of more application modules and function modules in the future. The core equipment supports the second-generation 10 Gigabit technology and can be easily upgraded to a 10 Gigabit backbone.
Cyber ​​security design. Constructing an access control system for the entire network is the main strategy for network security prevention and protection. Its main task is to ensure that network resources are not illegally used and accessed. It is one of the most important core strategies for ensuring network security.
Full service, quality assurance. In view of the complexity of video and audio data in the education metropolitan area network, the heavyness of the business volume and the diversity of business types, this solution provides network application functions such as IP telephony, VOD, and multimedia data transmission for the metropolitan area network. Not only has the resources been fully applied, but it has also greatly improved the application efficiency of the network and effectively protected the construction investment of the metropolitan area network.
At present, the transformation of the entire campus network of Liaocheng University has been successfully completed, with stable operation and superior performance. It has high reliability, high security, easy scalability, and easy upgradeability while satisfying the high-speed transmission of the backbone network. The applications are smoothly implemented, which satisfies the needs of the school ’s multimedia teaching, provides a new network environment for teachers and students, promotes information exchange, satisfies resource sharing, and facilitates the exchange of scientific technology and scientific research and cooperation . Because the entire network uses Ruijie network switching equipment with extremely high cost performance, on the premise of fully ensuring network performance, the school's project investment is effectively protected.
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