ZyXEL GS-1524 User Guide - Page 148
Table 72, Feature, Description - zyxell
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Chapter 22 Product Specifications This section describes the general software features of the Switch. Table 72 Firmware Features 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. Layer 2 Management Forward traffic based on the destination MAC address and VLAN group (ID). QoS Queuing is used to help solve performance degradation when there is network congestion. Two scheduling services are supported: Strict Priority (SP) 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. Rate Control Rate control is a combination of bandwidth management and broadcast storm control. This feature allows you to set limits for incoming and outgoing traffic on the ports. The broadcast storm control feature helps prevent broadcast, multicast or unknown unicast traffic from flooding your network. Port Mirroring Port mirroring allows you to copy traffic going from one or all ports to another or all ports in order that you can examine the traffic from the mirror port (the port you copy the traffic to) without interference. Link Aggregation Link aggregation (trunking) is the grouping of physical ports into one logical higher-capacity link. You may want to trunk ports if for example, it is cheaper to use multiple lower-speed links than to under-utilize a high-speed, but more costly, single-port link. Device Management Use the web configurator to easily configure the rich range of features on the Switch. Firmware Upgrade Download new firmware (when available) from the ZyXEL web site and use the web configurator to put it on the Switch. Configuration Backup & Restoration Auto DoS Auto VoIP Dynamic ARP Note: Only upload firmware for your specific model! Make a copy of the Switch's configuration and put it back on the Switch later if you decide you want to revert back to an earlier configuration. The Automatic Denial of Service (DoS) attack detection and prevention feature helps protect you from hackers trying to disrupt or shut down your network. The Automatic VoIP feature grants the highest priority to VoIP traffic ensuring better sound quality and reliability for end users. Dynamic ARP allows you to filter incoming traffic based on the MAC to IP address mapping. The Switch can be configured to only allow trusted devices to communicate via its ports. 148 GS-1524/GS-1548 User's Guide