ZyXEL Communications ES-2024 - V3.80 User Manual page 237

Table 98 Feature Descriptions (continued)
FEATURE
Port Mirroring
Static Route
Multicast VLAN Registration
(MVR)
STP (Spanning Tree
Protocol) / RSTP (Rapid
STP) / MSTP (Multiple STP)
Loop Guard
IP Source Guard
Link Aggregation
Port Authentication and
Security
Authentication and
Accounting
Device Management
Port Cloning
Syslog
Firmware Upgrade
Configuration Backup &
Restoration
Cluster Management
ES-2024 Series User's Guide
DESCRIPTION
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.
Static routes tell the Switch how to forward IP traffic when you configure
the TCP/IP parameters manually.
Multicast VLAN Registration (MVR) is designed for applications (such as
Media-on-Demand (MoD)) using multicast traffic across a network. MVR
allows one single multicast VLAN to be shared among different
subscriber VLANs on the network.
This improves bandwidth utilization by reducing multicast traffic in the
subscriber VLANs and simplifies multicast group management.
(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. The Switch also
allows you to set up multiple STP configurations (or trees). Ports can
then be assigned to the trees.
Use the loop guard feature to protect against network loops on the edge
of your network.
Use IP source guard to filter unauthorized ARP packets in your network.
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.
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.
The Switch supports authentication and accounting services via RADIUS
and TACACS+ AAA servers.
Use the web configurator or commands to easily configure the rich range
of features on the Switch.
Use the port cloning feature to copy the settings you configure on one
port to another port or ports.
The Switch can generate syslog messages and send it to a syslog
server.
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!
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.
Appendix A Product Specifications
237