ZyXEL XGS4700 Series User Guide - Page 458
Table 170
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Chapter 55 Product Specifications Table 170 Firmware Specifications (continued) FEATURE DESCRIPTION STP (Spanning Tree Protocol) / RSTP (Rapid STP) (R)STP detects and breaks network loops and provides backup links between switches, bridges or routers. It allows a Switch to interact with other (R)STP -compliant switches in your network to ensure that only one path exists between any two stations on the network. Loop Guard Use the loop guard feature to protect against network loops on the edge of your network. IP Source Guard Use IP source guard to filter unauthorized DHCP and ARP packets in your network. 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. Port Authentication and Security For security, the Switch allows authentication using IEEE 802.1x with an external RADIUS server and port security that allows only packets with dynamically learned MAC addresses and/or configured static MAC addresses to pass through a port on the Switch. Authentication, Authorization and Accounting The Switch supports authentication, authorization and accounting services via RADIUS and TACACS+ AAA servers. Device Management Use the web configurator or commands to easily configure the rich range of features on the Switch. Port Cloning Use the port cloning feature to copy the settings you configure on one port to another port or ports. Syslog The Switch can generate syslog messages and send it to a syslog server. Firmware Upgrade Download new firmware (when available) from the ZyXEL web site and use the web configurator, CLI or an FTP/TFTP tool to put it on the Switch. Configuration Backup & Restoration Cluster Management sFlow PPPoE IA 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. Cluster management (also known as iStacking) allows you to manage switches through one switch, called the cluster manager. The switches must be directly connected and be in the same VLAN group so as to be able to communicate with one another. sFlow allows the Switch to monitor traffic in a network by getting sample data and packet statistics from traffic, and send information to an sFlow collector for analysis. With the PPPoE Intermediate Agent enabled, the Switch can give a PPPoE termination server additional subscriber information that the server can use to identify and authenticate a PPPoE client. 458 XGS4700-48F User's Guide