Solution for the transformation of campus network of Anette Sun Yat-sen University

Digital campus is based on the traditional campus, using advanced information means and tools to realize the digitization of campus resources, and form a complete digital space. In the digital campus, the entire process of teaching, scientific research, management and service activities of the school can be conveniently realized through modern means, so as to achieve the purpose of improving teaching quality, scientific research level and management level.

The construction of the digital campus of Sun Yat-sen University started from a very early time, and has been constantly adjusted and perfected. Recently, Sun Yat-sen University intends to transform the campus network on the original basis.

School needs

After more than 7 years of construction, the campus network of Sun Yat-sen University (including the former Sun Yat-sen Medical University) already has a considerable scale (more than 18,000 computers connected to the network), and this network transformation is adjusted on the current basis. "Unification and integration" is the basic idea that this new Sun Yat-sen University campus network adjustment process should follow. Through this adjustment, the reliability, availability, security, manageability and scalability of Sun Yat-sen University campus network will be obtained. Significantly improved.

The network system of Sun Yat-sen University has been built for many years. The current problems are mainly insufficient network performance and poor network management. Therefore, for this network reconstruction project of Sun Yat-sen University, high performance, high cost performance, traffic engineering and QoS, and reliable network Sex, network security, network management, etc. as the most basic requirements.

According to the planning of Sun Yat-sen University experts, Sun Yat-sen University's network is a large-scale national exemplary campus network with distinct layers including core layer, edge layer, convergence layer, distribution layer, floor, node layer, etc. After this transformation This level will be clearer, management is more convenient, and performance is more superior.

The campus network transformation started from the Guangzhou South Campus. At present, there are already two Avaya P882R switches in the Guangzhou South Campus. In order to improve the utilization rate of equipment and reduce the cost of investment, it is planned to use these two switches at the same time as the core switch of the entire Sun Yat-sen University.

Solution realization

This transformation will place a high-performance router on the border of the campus network, which is mainly used to solve the bottleneck of throughput on the border of the campus network and implement network strategies when various campus networks are connected to the Internet. Three aggregation switches mainly solve each LAN Convergence connection and implementation of various network strategies, and then use two Annet Gigabit switches of the same series to redundantly connect the high-performance server cluster of the data center to improve its reliability, while the Gigabit access switches of various departments It is used for the Gigabit upgrade and access control of various departments and units in the teaching and research area.

Under the premise of making full use of the investment, Annet provides network technology and end-to-end network system solutions suitable for university applications, and provides cost-effective equipment.

At the core layer of the network, Annett uses the AT-SB4000, a carrier-grade large-capacity, non-blocking, multi-layer chassis-type core switch, which can provide powerful line-speed switching performance and can forward each port on all types of ports without blocking A variety of L2, L3 data of different lengths. AT-SB4000 provides 128G high-throughput switching matrix. AT-SB4000 has a fully redundant design (switching engine, power supply), and all modules support hot swapping.

At the aggregation layer, Sun Yat-sen University adopted the Gigabit aggregation core switch ClayMore9800. This is a gigabit multi-layer switch. The performance, reliability, and flexibility indicators have adopted new standards. In a 1.5U thick chassis that can be installed in a standard rack, a 32G backplane is provided. Throughput capability, and can handle IP / IPX layer 3 switching at a line rate of 24 million packets per second.

At the distribution layer, Annette uses the multi-layer intelligent switch 8700, this series of enhanced fast Ethernet switches, designed for high-performance desktop connections, workgroups, and server farm or backbone network applications, so all its ports The second layer switching and IP routing with wire speed provide the possibility to build an intelligent network system.