ZyXEL Communications ZyXEL Dimension ES-2048 - Manual (Page 267)

Chapter 35 Product Specifications
ES-2048 User’s Guide
267
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 and
Accounting
The Switch supports authentication 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.
Note: Only upload firmware for your specific model!
Configuration Backup &
Restoration
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 earl i er configuration.
Cluster Management 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.
Table 105 Firmware Specifications
FEATURE DESCRIPTION