ZyXEL ES-2024A User Guide - Page 281
Table 101, Table 100
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Appendix A Product Specifications Table 100 Hardware Specifications (continued) SPECIFICATION DESCRIPTION Gigabit Ethernet Ports 2 Dual Personality interfaces(1000Base-T and SFP redundant) Supports 100/1000 full duplex mode only Compliant with 802.3z/802.3ab Console Port System Monitoring Copper/fiber interface auto-selection by signal detection (Fiber first) D-Sub 9 pin Female (DCE) Voltage: 1.25 V: +/- 6% 1.8 V: +/- 6% 3.3 V: +/- 6% 2.5 V: +/- 6% Temperature: CPU: 60 degrees C MAC: 60 degrees C Fan Speed: 3500~8000 rpm Table 101 Feature Descriptions FEATURE DESCRIPTION VLAN A VLAN (Virtual Local Area Network) allows a physical network to be partitioned into multiple logical networks. Devices on a logical network belong to one group. A device can belong to more than one group. With VLAN, a device cannot directly talk to or hear from devices that are not in the same group(s); the traffic must first go through a router. MAC Address Filter Filter traffic based on the source and/or destination MAC address and VLAN group (ID). DHCP (Dynamic Host Use this feature to have the relay DHCP requests to DHCP Configuration Protocol) servers on your network. IGMP Snooping The Switch supports IGMP snooping enabling group multicast traffic to be only forwarded to ports that are members of that group; thus allowing you to significantly reduce multicast traffic passing through your Switch. Differentiated Services (DiffServ) With DiffServ, the Switch marks packets so that they receive specific per-hop treatment at DiffServ-compliant network devices along the route based on the application types and traffic flow. Queuing Queuing is used to help solve performance degradation when there is network congestion. Three scheduling services are supported: Strict Priority Queuing (SPQ) and Weighted Round Robin (WRR). This allows the Switch to maintain separate queues for packets from each individual source or flow and prevent a source from monopolizing the bandwidth. ES-2024 Series User's Guide 281