Multi-Campus network interconnection involves connecting multiple geographically dispersed campuses into a unified network. To meet the demands of such networks, the following service requirements must be addressed:

Manage LAN-side and WAN-side services in a unified manner : Unified management simplifies operations by providing a single interface to monitor and control both local area networks (LANs) and wide area networks (WANs).

Improve the network deployment efficiency and shorten the service provisioning period : Automation tools and software-defined networking (SDN) technologies help streamline deployment processes, reducing the time required to roll out new services.

Reduce the costs for WAN interconnection between branches : Cost optimization is achieved through efficient use of bandwidth, leveraging technologies like SD-WAN and traffic engineering to minimize expenses.

Improve the application identification capability and ensure the experience of key services : Advanced analytics and AI-driven insights enable precise application identification, prioritizing critical services to ensure optimal user experience.

Adopt a visualized method to simplify management and O&M : Visualization tools provide intuitive dashboards and real-time monitoring, making it easier to manage complex networks and troubleshoot issues.

All five options are valid service requirements for Multi-Campus network interconnection, making them all correct.