In Changchun, there is a saying: "The beautiful Changchun City is located on the campus of Jilin University." This shows the charm and status of Jilin University, a university with a humanistic feeling in the eyes of the Changchun people. Founded in 1946, Jilin University is a national key comprehensive university directly under the Ministry of Education. It is a famous institution with key constructions in the “211 Projectâ€, “985 Project†and “2011 Planâ€. As one of the largest institutions of higher learning in China, Jilin University has become an important base for the cultivation of high-quality innovative talents, high-level scientific research and transformation of results, and advanced culture in an important position in national and regional economic and social development. Strive towards the ambitious goal of building a world-class university.
The campus network of Jilin University is an important platform for communication between the school and the outside world, and an important stage for showing the face of the school. After several decades of development and construction, the campus network of Jilin University currently carries nearly 100 secondary websites and 15 major application systems such as school teaching and scientific research, providing information services for more than 70,000 teachers and students. However, with the continuous deepening of education modernization, how to build a campus network that better meets the needs of teachers, students, research, and teaching applications has always been a problem.
Innovative campus requires a network that is ahead of the times
The school's scientific research always faces the most advanced technology. Jilin University, as a well-known domestic university, has five national key laboratories, one national engineering research center, and one national engineering technology research center. A number of key scientific research bases each have some high-end scientific research projects. As a unified platform, the campus network must have the ability to support scientific research and innovation, as well as the ability to continue to evolve in the future.
If a worker wants to do something good, he must first sharpen his tools. Smoothly evolving the campus network of SDN has become a necessary condition for scientific research and innovation of Jilin University. Jilin University chose Huawei's agile network solution to upgrade its campus network. The Huawei Agile Switch S12700 deployed on the core of the network supports packet forwarding based on existing protocols and fully covers the capabilities of traditional switches. On the other hand, it supports the generalized flow forwarding of completely customized entries, and is compatible with the latest Openflow standard in the industry to meet SDN. The architecture of the elastic network. The network can be forwarded according to the forwarding mode of the traditional network, or scheduled and forwarded according to the SDN forwarding mode. If there is a problem in the SDN plane, the system automatically switches to the traditional plane seamlessly, achieving smooth evolution of the traditional plane and the SDN plane.
New teaching models emerge one after another, and network robustness is the key
The advent of the digital age has created an unprecedented historical stage for the spread of knowledge and culture. New teaching modes such as distance education, interactive classrooms and online exams have brought surprises and shocks to higher education teaching, but they have also put forward higher requirements for the network. It is necessary to provide a stable, reliable and efficient network platform for teaching and research services.
The agile switch S12700 adopts the CSS2 switching network hardware cluster technology to implement the industry's lowest cross-frame forwarding delay and 1+N backup of the cluster system master, so that the entire cluster system can still work normally with only one master control left. This technology greatly improves the stability of the network. At the same time, hardware OAM/BFD monitoring is deployed on the network end-to-end. Even if the network fails, it can be quickly switched within 50ms to minimize the impact of network failure on the school service.
Wired and wireless deep convergence, paving the way for the 802.11ac era
With the advent of the 802.11ac era and the increasing popularity of mobile learning and office, wireless Gigabit access has become a trend. The drawbacks of the previous wired and wireless separation networking of Jilin University have become increasingly prominent. The main performance is that the wireless AC equipment in the traditional network has become a performance bottleneck of the wireless network due to factors such as forwarding capability and number of ports. Wired and wireless traffic cannot share bandwidth, and wireless performance is insufficient and wired bandwidth is prosperous for a long time, resulting in waste of resources; independent AC or wireless AC cards in the traditional networking mode increase unnecessary failure points.
Due to the above-mentioned wireless forwarding performance bottleneck and waste of resources in the traditional wired and wireless campus network, Huawei has tailored a wired and wireless deep convergence solution for Jilin University. The wireless AC function is built into the service board as a feature, eliminating the need to deploy a separate AC device or AC board. After the AC function is integrated on the agile switch, wired and wireless can be unified in the management, authentication, and policy control of the agile switch, realizing the deep integration of wired and wireless. At the same time, the agile switch can be regarded as an AC, and the wireless forwarding capability reaches the order of Tbit. Compared with the traditional independent AC, it can achieve a hundredfold improvement, effectively solving the wireless network performance bottleneck problem, saving investment and reducing the point of failure.
Huawei's agile network has created a stable, reliable, wired and wireless convergence and time-based agile campus network for Jilin University, effectively carrying the school's teaching, learning and research innovations, bringing full Gigabit wireless access and 100 times wireless performance. Improvement. Up to now, Huawei's agile network has been applied in a number of universities around the world, including Tsinghua University, University of Science and Technology, Nanjing University, Nankai University, Newcastle University, Massachusetts Institute of Technology, and Lincoln University of New Zealand. In the future, Huawei will rely on its deep technical accumulation in the ICT field and innovative solutions in the education industry to better serve its global customers, lead new ICT construction, and share high-quality educational resources and services globally.
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