ZyXEL Communications GS 2200 Manual page 309

Table 129 Firmware Specifications
FEATURE
Number of Login Accounts
Configurable on the Switch
Maximum Frame Size
VLAN
MAC Address Filter
DHCP (Dynamic Host
Configuration Protocol)
Relay
IGMP Snooping
Differentiated Services
(DiffServ)
Classifier and Policy
Queuing
Bandwidth Control
Broadcast Storm Control
Port Mirroring
Static Route
STP (Spanning Tree
Protocol) / RSTP (Rapid
STP)/MSTP (Multiple
Spanning Tree Protocol)
Loop Guard
IP Source Guard
Link Aggregation
GS2200-8/24 User's Guide
DESCRIPTION
4 management accounts configured on the Switch.
Authentication via RADIUS and TACACS+ also available.
9 K (9216 bytes)
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.
Filter traffic based on the source and/or destination MAC address and VLAN
group (ID).
Use this feature to have the Switch forward DHCP requests to DHCP servers on
your network.
The Switch supports IGMP snooping, enabling group multicast traffic to be only
forwarded to ports that are members of that group; thus allowing you to
significantly reduce multicast traffic passing through your Switch.
With DiffServ, the Switch marks packets so that they receive specific per-hop
treatment at DiffServ-compliant network devices along the route based on the
application types and traffic flow.
You can create a policy to define actions to be performed on a traffic flow
grouped by a classifier according to specific criteria such as the IP address, port
number or protocol type, etc.
Queuing is used to help solve performance degradation when there is network
congestion. The following scheduling services are supported: Strict Priority
Queuing (SPQ) Weighted Round Robin (WRR), and Weighted Fair Queuing
(WFQ). This allows the Switch to maintain separate queues for packets from
each individual source or flow and prevent a source from monopolizing the
bandwidth.
Bandwidth control means defining a maximum allowable bandwidth for
incoming and/or out-going traffic flows on a port.
Broadcast storm control limits the number of broadcast, multicast and
destination lookup failure (DLF) packets the Switch receives per second on the
ports.
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 allow the Switch to communicate with management stations not
reachable via the default gateway.
(M)(R)STP detects and breaks network loops and provides backup links between
switches, bridges or routers. It allows a Switch to interact with other (M)(R)STP-
compliant switches in your network to ensure that only one path exists between
any two stations on the network.
Use the loop guard feature to protect against network loops on the edge of your
network.
Use IP source guard to filter unauthorized DHCP and 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.
Chapter 43 Product Specifications
309