With the rapid development of information technology, the teaching, research, and management activities of colleges and universities increasingly rely on modern information infrastructure. Wireless networks, as one of the important infrastructures, bear the important responsibility of connecting faculty, students, and various devices. Therefore, upgrading the wireless network to meet the growing needs is a priority for any educational institution.
Customer Background:
Shanghai Information Engineering College is an information and engineering college that integrates remote sensing, surveying, and spatial information engineering technology. The college has a strong faculty, with a total of 92 faculty members, including one academician of the Chinese Academy of Sciences, two academicians of the Chinese Academy of Engineering, two academicians of the Eurasian Academy of Sciences, 20 professors, 15 part-time professors, one Luojia Distinguished Professor, one visiting professor, one guest professor, and 21 associate professors, among whom 25 are doctoral supervisors.
Over the years, with the support of the "211" and "985" projects, the college has established a world-class scientific research and teaching environment, and has basically built a three-dimensional data collection system for aerospace, aviation, low-altitude, and ground, achieving a number of significant research results.
With the strategic adjustment of the national economic construction and the needs of "Digital Earth" and "Digital City" construction, educational informatization and campus networking have become the direction of educational development in major colleges and universities in the network era.
Along with the development of the college's informatization construction, the original network system can no longer meet the current situation. Therefore, based on the status of the college, it is planned to comprehensively transform the informationization network environment and build a manageable, high-speed, and informationized network environment for teaching, scientific research, and experiments.
Construction Objectives:
Relying on the successful experience in building large-scale and efficient campus wireless network systems, and through the understanding of the construction needs of Shanghai Information Engineering College and preliminary technical research, the following design rules are formulated:
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Stability: The design of the overall network system must have a telecommunication level (99.999%) reliability, which can maintain long-term stable operation. Moreover, in case of failure, it must provide a rapid business recovery mechanism.
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Advanced: The overall network system design, from the architecture, specific product selection, and solution combination, should adopt leading-edge technologies and mature products in the industry to ensure that the current network system design is leading and has good scalability with the increase of business volume in the next few years.
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Openness and Standardization: The products involved in the overall system design should adopt standardized protocols and open technical architectures to ensure the compatibility of the entire system and facilitate subsequent expansion.
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Scalability: The products selected for the overall network system must maintain technological leadership in the next few years and have good support for future business. At the same time, the products selected this time must provide expansion modules in the next ten years to maintain smooth upgrades and protect the original investment.
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Reasonability: The entire system design should be based on the principles of economy and practicality, not only meeting the current business needs but also being able to expand in terms of system capacity and functions with the continuous development of informatization.
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Ease of Management and Maintenance: The entire system should have good management and maintenance characteristics, enabling the network information center maintenance personnel of this wireless coverage construction project to master the operation of the entire network system, including traffic, user behavior, equipment status, and security risks, after being trained by the manufacturer, and take effective preventive and avoidance measures before faults or risks occur.
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Security: The overall system design should have good security planning to ensure that the network has excellent automatic prevention and threat handling capabilities in the event of external or internal security threats such as viruses and network attacks, ensuring the normal operation of the business system.
Overall Design Overview:
After years of informatization construction, Shanghai Information Engineering College has built its own campus network. However, with the deepening of its application, the robustness and security issues of the laboratory network have gradually become prominent, directly affecting the teaching, management, and scientific research activities of the school.
Therefore, it is urgent to reasonably construct an advanced, robust, and secure system structure and improve the network application environment based on a comprehensive understanding of the current situation of the laboratory network.
The overall design of the wireless coverage construction of Shanghai Information Engineering College is based on high performance, high reliability, high security, good scalability, manageability, and a unified network management system, considering the advanced and mature design methods of the technology.
The H3C brand selected by Netcom Communication is designed based on pure IP technology to meet the changing needs of the wireless network construction of Shanghai Information Engineering College.
Aiming at the effective and efficient use of network resources, it provides an optimization solution from the perspective of network architecture, making the wireless network construction of Shanghai Information Engineering College more reliable and controllable, and making the network structure and layout more reasonable in combination with the actual business distribution.
Overall Solution:
The overall design of the wireless network construction solution for Shanghai Information Engineering College is based on high performance, high reliability, high security, good scalability, manageability, and a unified network management system, considering the advanced and mature design methods of the technology, and adopting a modular design approach. The network diagram is shown below:
As shown in the figure:
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This time, the wireless coverage solution of Shanghai Information Engineering College adopts AC+802.11N FIT AP for networking, which is convenient for the unified management and configuration of APs. The wireless coverage is deployed indoors, all using 802.11N access, providing high-bandwidth wireless access for students and faculty to meet user needs and future development requirements.
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It is expected that a total of 60 802.11n wireless APs will be deployed in Shanghai Information Engineering College, with APs connected to POE switches via 1000M links, and all switches are centrally powered by Gigabit POE+ power supply switches.
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A wireless controller is deployed in the core machine room, which adopts a modular design with plug-in cards, managing all wireless APs, and APs are uniformly configured by the AC, with APs themselves having zero configuration, simplifying the complexity of configuration.
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All wireless APs are managed in detail through a unified wireless network management deployed in the network management area.
Product Recommendations:
The H3C WA2600 series wireless access points are a new generation of 802.11n Draft2.0 compatible Gigabit wireless access points (hereinafter referred to as APs), which can provide more than six times the wireless access rate of traditional 802.11a/b/g networks, covering a larger range. The series of APs use Gigabit Ethernet interfaces for the upstream interface, breaking through the limitations of the 100M Ethernet interface, making wireless multimedia applications a reality.
The WA2600 series AP includes enhanced and indoor types. The enhanced type includes WA2610E-AGN (single frequency) and WA2620E-AGN (dual frequency) two wireless access point devices, mainly for warehouse, factory workshop and other applications with high requirements for temperature and dust environment.
The indoor type includes WA2610-AGN (single frequency), WA2612-AGN (single frequency), and WA2620-AGN (dual frequency) three wireless access point devices, mainly for office areas, intelligent buildings and other indoor environments.
Project Highlights:
The overall design of the wireless campus network construction solution for Shanghai Information Engineering College is based on high performance, high reliability, high security, good scalability, manageability, and a unified network management system, considering the advanced and mature design methods of the technology, and adopting a modular design approach.
For this network, the unified planning of network IP has facilitated network management. The corresponding access control and quality of service ensure the overall practicality of the network and play an important role in the security and management of the network. The entire system is built on an IP network (transmitted through the network), with high performance, strong reliability, and the lowest possible system failure rate. The IP system is convenient for expansion, laying a good foundation for future system expansion and the addition of other systems.
The selected products are all first-line brand products, with good system stability and product after-sales support, which is convenient for user use and management. In terms of product selection, mature technologies are used, and excessively advanced products are not adopted. This system is designed from a practical and applicable perspective, saving investment for the client.
