Campus networks, as a digital network connecting buildings and infrastructure within a specific geographic area, provide great ease of communication between digital devices, users and services within a region. Due to its design efficiency, flexibility and seamless interconnection characteristics, it is smaller and faster than WANs or MANs and plays a key role in maintaining enterprise connectivity and productivity in various industries. This article explores the dilemmas faced by campus networks and gives recommendations based on them, with the aim of helping users to create a reliable and secure campus network.
What is a Campus Network
A traditional campus network is generally a local area network (LAN) that is interconnected in a contiguous, limited geographic area, with networks in non-contiguous areas being treated as different campus networks. Many enterprises and campuses have multiple campuses, which are connected to each other via WAN technology.
Campus networks usually have only one manager. Multiple networks covering the same area with multiple managers are usually considered multiple campus networks; if they are all managed by a single manager, we will treat these multiple networks as multiple subnets of a single campus network.
Classification of Campus Networks
Classifying campus networks is crucial for optimising their design and management. By understanding different types, we can better address the unique needs of users and enhance overall network performance.
Enterprise Campus Network
Enterprise campus network generally refers to the enterprise office network formed based on Ethernet switching equipment. Around the production and office of the enterprise, the campus network needs to consider how to ensure the reliability and advancement of architecture, continue to improve the office experience of employees, and ensure the efficiency and quality of production.
Educational Network
Campuses can be categorized into general education campuses and higher education campuses based on their educational targets. General education campuses serve primary and secondary school students and teachers. Their internal networks resemble enterprise campus networks in structure and function. In contrast, higher education campuses cater to university and college students and teachers. These networks include parallel teaching and research networks, student networks, and operational dormitory networks, which require advanced deployment and management.
Campus networks must not only handle data transmission but also monitor student online behaviour to prevent inappropriate actions. Additionally, they need to support research and teaching functions, leading schools to place high demands on the technological capabilities of campus networks.
Government Campus Network
Usually refers to the internal network of government-related organisations. The security requirements of governmental campus network are extremely high, and the internal network and external network are usually segregated to ensure the absolute security of classified information.
Business Park Network
Usually refers to the networks of various commercial organisations and business venues, such as shopping malls, supermarkets, hotels, museums, parks and so on. A business park network will contain a closed subnet that serves the internal office, but mainly serves the consumers, such as the customers of shopping malls and supermarkets, and the residents of hotels. A business park network not only provides network services, but also builds corresponding business intelligence systems to enhance customer experience, reduce operating costs, improve business efficiency and realise value transfer through network systems.
Challenges Facing Campus Networks
In the context of digital transformation, the campus network is no longer able to meet the needs of digital transformation, exposing many problems:
Poor WiFi Signal
Common WiFi issues include weak signals, inability to connect, and slow speeds. These problems negatively impact user experience. Unlike wired networks, wireless networks rely on competition for airwave resources, which limits stability due to factors like networking, bandwidth, and interference. Additionally, WiFi operates on a half-duplex system, meaning uplink and downlink share the same spectrum. This setup causes a significant drop in overall throughput and individual bandwidth when multiple users are connected.
For example, weak signals may arise from coverage gaps or obstructions. Users may encounter connection issues due to high concurrent access. Slow speeds can result from multiple users competing for large-bandwidth services. Other factors include interference from co-frequency or neighboring frequencies, leading to inconsistent performance, unprotected mobile roaming that interrupts service, and slow fault repair due to challenges in replicating or identifying issues.
Operation and Maintenance Complexity
The digital transformation of enterprises has increased the number of terminals and expanded network size. Business models have also become more varied and complex. However, the resources and manpower for network operation and maintenance have not kept pace. Traditional ‘device-centric’ approaches fail to capture user and business experiences. As a result, they can only respond passively to faults, making it hard to meet user demands and ensure a positive business experience during digital transformation. Traditional campus network operation and maintenance now face several challenges.
Large-Scale Network Growth, Operation and Maintenance Difficulties Greatly Increased
First, the park’s wireless access has expanded significantly, leading to an exponential increase in wireless users. The wireless environment is complex, with inherent vulnerabilities and uncertainties. External interference can disrupt the network, often occurring suddenly. The operation and maintenance team, lacking professional tools, can only respond passively to issues like poor wireless signals, slow internet access, and roaming problems. They rely on on-site visits for troubleshooting, resulting in long fault recovery times.
Secondly, as the network scales, the number of wired network ports has surged. The network’s complexity now far exceeds what manual operations can handle. Traditional reactive maintenance, driven by complaints and reliant on increasing personnel, struggles to ensure network quality.
Cloud Management of Equipment can not Obtain Real-Time Equipment KPIs, and Application SLAs are Difficult to Guarantee
The Park cloud network integrates all network equipment for cloud management and operations. Maintenance personnel cannot see or touch the hardware. Traditionally, network management relies on SNMP and minute polling to gather KPI (Key Performance Indicator) data. This method uses a fixed data structure, requiring multiple requests for effective data collection. As a result, it struggles to support real-time KPI monitoring and timely issue resolution during application failures. Consequently, ensuring the application of SLA (Service Level Agreement) becomes challenging.
Development Direction of Campus Network Optimisation
In order to cope with the above challenges, it is necessary to systematically reconfigure the campus network to create a cloud campus network with all wireless access, one global network, all cloud-based management, and all intelligent operation and maintenance.
Construct WiFi Continuous Network
To address WiFi network experience issues, the primary goal is to create a continuous network. This involves three key factors: signal continuity, bandwidth continuity, and roaming continuity. During the planning stage, it’s essential to assess the height and location of access points (APs) against potential obstacles. Using 3D signal simulation and walking mode, planners can visualize coverage effects in all directions, addressing coverage gaps or weak signals from the outset.
In the construction phase, smart antennas help ensure continuous signal coverage and strength, particularly in edge areas. BSS (Basic Service Set) Coloring technology allows for same-frequency transmission, enhancing spectrum efficiency through unified resource scheduling. This significantly boosts multi-user throughput and enables seamless WiFi roaming, minimizing switching time between APs to milliseconds. As a result, there is zero packet loss during roaming, preventing interruptions in audio and video communication.
During maintenance and optimization, artificial intelligence facilitates intelligent network tuning and quick fault detection. This reduces overall network interference by more than half and allows for minute-level identification of over 85% of faults. Intelligent wireless RF tuning using neural networks enhances network performance. Real-time diagnostics and intelligent problem analysis help assess the overall user experience and guide network optimization.
Create Intelligent Operation and Maintenance System
Cloud Park Network utilizes AI technology for intelligent tuning, which detects real-time changes in thousands of access terminals and services. This system identifies potential faults and risks in the wireless network, allowing for precise minute-by-minute adjustments. The new data collection technology enables real-time monitoring and, when paired with multi-dimensional big data analysis, provides a clear view of business operations.
Users receive a 360-degree network profile based on their timeline, highlighting experiences such as authentication, latency, packet loss, and signal strength. From a broader perspective, the overall regional network performance can be assessed, including access success rates, access times, roaming compliance, coverage, and capacity compliance. This comprehensive view helps guide informed operational and maintenance decisions.
Building Active Security Defences
Traditional border security measures are no longer effective. Advanced Persistent Threat (APT) attacks and encrypted traffic exfiltration can swiftly breach an organization’s intranet, jeopardizing endpoints and data security. Administrators often spend hours or even days addressing these attacks. Therefore, new security solutions must be implemented in campus networks.
First, adopting a zero-trust security architecture is crucial, making internal network components like switches the first line of defense, closely integrated with security features. Second, collaboration among network elements, local security analyzers, network controllers, and cloud intelligence centres is necessary to establish a proactive, comprehensive security defence.
FS Campus Network Solutions Lead the Way
Facing the wave of campus network upgrades, FS provides reliable campus network solutions to ensure seamless, efficient and secure network performance.
High – Performance WiFi Coverage
FS Campus Network Solutions utilise wireless products such as Access Points (APs) and Access Controllers (ACs) to provide extensive wireless coverage throughout the campus. This comprehensive wireless coverage meets the needs of mobile users and IoT devices, providing a solid foundation for modern campus environments.
The AP-N755 utilises the new Wi-Fi 7 technology to deliver an industry-leading performance environment. Available in the 2.4 GHz, 5 GHz and 6 GHz bands, the service supports a total of 16 spatial streams with device rates up to 24.436 Gbps. The AP-N755 delivers extremely fast speeds, low latency, and increased capacity to meet the growing customer demand for auditoriums, conference centres, healthcare facilities and other high-traffic indoor spaces.
Simplified Network Management
FS adopts PicOS® switches and AmpCon™ unified management platform to build a typical three-tier network architecture, constructing a high-bandwidth, stable, easy-to-manage, and secure enterprise network, which dramatically improves user experience and enhances enterprise productivity.
PicOS® eliminates reliance on a single vendor for critical network infrastructure and delivers a more resilient, programmable and scalable Network Operating System (NOS) with a lower TCO. AmpCon™ enables data centre operators to efficiently configure, monitor, manage, preventively troubleshoot and maintain their data centre fabrics with a unified approach to configuring, monitoring and maintaining their networks, thus eliminating costly downtime and time-consuming manual tasks.
Comprehensive Network Security
The FS PicOS® switch is equipped with comprehensive security features including SSH, ACL, AAA and NAC, which provide strong protection against unauthorised access and potential threats. Meanwhile, the WiFi 7 AP supports WPA3, Wireless Intrusion Detection System (WIDS), RF jamming tracking and Pre-Shared Key (PPSK) authentication. These advanced security features work together to create a strong security barrier to defend against all types of attacks and enhance data encryption. By integrating these measures, the campus solution secures sensitive data and maintains network integrity, providing peace of mind for both users and administrators.
Conclusion
As the digital transformation of enterprises continues, more and more scenarios are being digitised, for example, a large number of intelligent video devices are being adopted by the campus, and in industrial scenarios, an endless stream of new devices demands higher network performance, and the upgrading and transformation of the campus network is imminent.FS has always been committed to solving the unique challenges faced by large and medium-sized enterprises.
By providing innovative solutions that prioritise stability, reliability and scalability, FS ensures that campus networks can meet the growing demands of the modern business environment. As business continues to evolve, FS solutions will adapt to future needs, ensuring that enterprise networks remain efficient, secure and future-proof.