Zyxel MES 3500-24F 24-port FE Fiber L2 Switch with Four GbE Combo Port

Consistent service quality and reliable connecting ability in a converged network is the key for Carrier to connect and satisfy customers; therefore the ability to control traffic flow and set traffic policy becomes more critical than ever. The Zyxel MES3500 series offers wire-speed flow control that classifies and prioritizes the incoming packets according to the predefine QoS policies that meet the requirements of service providers. In terms of classification, the Differentiated Services Code Point (DSCP) field and the 802.1p Class of Service (CoS) field are identified to assess the priority of incoming packets. Classification and reclassification can be based on criteria as specific as rules based on IP, MAC addresses, VLAN ID, or TCP/UDP port number. A quick recovery and round-the-clock network are vital for service providers to establish a robust network. The MES3500 series provides comprehensive features to make sure the network is well operated. The IEEE 802.3ad Link Aggregation feature reduces network downtime by providing redundant paths and bandwidth aggregation to critical connections, while IEEE 802.1w Rapid Spanning Tree Protocol (RSTP) and IEEE 802.1s Multiple Spanning Tree Protocol (MSTP) allow immediate recovery from failed connections by sending packets via the backup link. The enhanced digital interface allows real-time access to the device operating parameters, and it includes optional digital features such as soft control and monitoring of SFP I/O signals. In addition, the MES3500 series fully incorporates the functionality needed to implement digital alarms and warnings from fault isolation and failure prediction tasks as well as component monitoring features, among others. With the digital diagnostic monitoring interface, the MES3500 series enables users to easily detect packet loss from transceivers and aging cables; therefore users can not only avoid troubles such as unstable networking services but also boost productivity significantly.