(Gigabit backbone solution for 3ComSwitch4007/SuperStackIISwitch9300 switches. 3ComSwitch4007 is suitable for the backbone core of the campus in a wider range of communities, and is suitable for the core switch of the local area network of large and medium-sized enterprises (48Gbps non-blocking switching capability). It adopts a modular rack structure, which can be used as a local area network high-density Gigabit network backbone (providing 54 Gigabit ports), and can be used as a high-density 10/100M access switch (providing 216 100M ports). On the basis of its high performance and high reliability, it also provides users with a variety of functions and means such as rich flow control, priority access, service quality control, network security control, and its good scalability, which can fully adapt to For the business use requirements of modern enterprise and campus access networks, we provide you with high-speed local area network solutions. ......)