A Brief Introduction to JMUNET

 

The campus network of Jimei University (JMUNET) was established in 1996. After that, JMUNET became one of the members of CERNET providing Internet basic services such as DNS, Email, WWW, FTP and so on.  With “618” Virtual PBX you could also enjoy free phone and free dial-up service of JMUNET. Along with the construction of the main building, the Network Center was set up in August 1997. Thereafter, JMUNET became the network interconnecting the buildings of each campus.

The Network Center is on the second floor of the main building. With the core mission of the establishment and management of JMUNET, the Network Center currently consists of five parts as follows: Network Operating Center (NOC), Network Information Center (NIC), Network Development Center (NDC), Network User Service Center (NUC) and the Office.

JMUNET is like a mini MAN (Metropolitan Area Network) connecting more than 10 campuses located in the community with the optical cables. According to the characteristics of Jimei University, the backbone network established in 1997 which utilizes the single-mode and multi-mode mixed optical cables is still providing good service even now. By the end of October 2007, there were 182 buildings with network interconnection, 223 optical cables installed, 1012 kilometers of fibers in total, 1349 network devices with 36792 ports, 44091 network access nodes, 23949 computers connected into the network, and 253 multimedia classrooms with about 32456 seats.

Three 155M ATM core switches distributed in three main campuses were used as the backbone of the first-generation campus network established in 1997. The network implementation used a ring topology providing a 100-Megabit Ethernet to connect the buildings by 3COM switches that could be administered through the network.

JMUNET was upgraded to the second-generation in 2001 and was equipped with CISCO devices. After that, the backbone network embodied a core switch router of CISCO OSR7609 and two layer 3 core switches of CISCO C6509, which were distributed in three main campuses. Most buildings were connected to the backbone network by 1-Gigabit Ethernet.

The current JMUNET is the third generation network which was upgraded in 2006. The backbone consists of a dual core and ten sink nodes including key switches of 10-Gigabit Ethernet such as CISCO C6506/6509 and Ruijie S8610/8606. Different campuses are interconnected by 10-Gigabit dual links while all buildings in Jimei University are interconnected by 1-Gigabit optical fibers. What’s more, the third-generation network has adopted IPv6 and a wireless network has now covered all teaching buildings, offices, laboratories and the library.

The third-generation network is equipped with CISCO firewall that focuses on protecting the data center and taking strict precaution against all kinds of attacks over the network. The third-generation network also brings the uniform authentication through the Internet. It embodies GSN (Global Security Network) system, which ensures computer safety from the Access Layer. IDS devices are installed in the gathering layer, which detect all security events of the entire network and report those events to the RG-SMP platform. After that, GSN carries out certain policies to respond automatically and correspondingly according to different events. GSN achieves the cooperation between the network safety monitoring and access control. GSN also enables the communication between the network regulatory measures and network users by using user messaging.  In a word, it is truly turning the goal of constructing a “high-speed, stable, safe, controllable, administrable” campus network into reality.

After the modification to “618” PBX in 1996, 40 pairs of trunk lines were used to provide dial-up Internet connection with the speed of 33.6Kbps. However, when the campus network updated to two PRI lines in 2001, each PRI line could provide 30 lines for ISDN dial-up service. At the same time, a dial-up Internet service of 56Kbps became available to users. The dial-up server was CISCO AS5300.

The initial residential network was put into use for the faculty in 1998 and for students in 2000. To date, there are 35 apartment buildings in the faculty, along with 67 student dormitories and apartments connected to the campus network.

The network gateway is connected to CERNET by 1-Gigabit optical cables. ChinaNet is used to provide VPN service for teachers and students. The bandwidth of 10 megabytes and 1 gigabyte are available for teachers and students respectively.

The campus network is equipped with servers of different brands such as SUN, IBM, Dell, Lenovo blade, etc.  It is also equipped with mass-storage systems. Therefore, the network allows users to access information from both the intranet and the Internet. The services provided include DNS, Email, FTP, WWW, network management and individual homepage hosting. It also provides websites for information service and security service such as Music Inn, Software Park, Xuecunju personal homepage server, IPTV, Film Pavilion, BBS, Time Synchronization Service, Microsoft Software Update Services and Rising Antivirus system center, etc. The network even provides enough web space for department so that different departments can have their own web site and domain name, which provides a very convenient way for internal and external users to access various information available in the intranet and exchange information between the intranet and the Internet.

JMUNET not only provides Internet access and Internet basic services, but also utilizes network resources adequately so that it has become a platform for different applications. Firstly, the educational administration management system increases its work efficiency. The Course Selecting System Based on Credit System allows teachers to publish courses they can offer and students to select courses they are willing to take. Secondly, eight domestic channels such as CCTV Channel Ten broadcasting ‘Lecture Room’, the International Channel, and foreign language channels such as BBC, NOW, ASIE, are put into use through web-based video. It is beneficial for students to know the society, learn foreign languages, and raise the comprehensive ability. Thirdly, both the university web site and the department websites, especially the information issuing system, play an important role in providing a convenient platform for information exchange in every corner of the campus. The library management system and information service, the multiple languages electron literatures, the message reference of Jimei University and the aquaculture technological database, are all resources beneficial to learning activities. In addition, Jimei University purchased a complete set of genuine Microsoft software to meet the needs of teaching. Free electronic mailboxes are also available for communication between teachers and students. Pre-vocational teaching website provides an effective way for students to learn autonomously and to acquire vocation guidance and vocational education. Finally, more and more application systems, such as 'One Card Through' system , student recruiting system, the campus security digital monitoring system, the network video conference system and the information management system of the State Loans for Students, provide services for scientific research, teaching and life for both staff and students in different ways. 

October, 2007

Organizational Structure

Director: Li Binqi
Associate Director: Ren Qinsheng, Chen Weibin

Organizational Structure of the Network Center:
Office (Tel: 6183217)
Network Operating Center
Network Information Center
Network Development Center
Network User service Center (Tel: 6182330)

Website: net.jmu.edu.cn

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