The product has a complete security and QoS strategy. It supports VLAN division, port mirroring, port rate limiting, supports broadcast storm suppression, flow control and can be managed through WEB, CLI, SNMP multiple interfaces and methods, with rich business features to meet the user's multi-service integrated, safe, scalable and easy managed network creating demand. The product adopts fanless heat dissipation, redundant circuit design, IP40 protection grade and corrugated high-strength aluminum alloy shell, so the work performance is more safe and reliable.