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Chapter 22 Product Specifications
GS-1524/GS-1548 User’s Guide
148
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.
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
earlier configuration.
Auto DoS The Automatic Denial of Service (DoS) attack detection and
prevention feature helps protect you from hackers trying to
disrupt or shut down your network.
Auto VoIP The Automatic VoIP feature grants the highest priority to VoIP
traffic ensuring better sound quality and reliability for end
users.
Dynamic ARP 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.