ZyXEL Communications 4728F User Manual

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 Chapter 56 Product Specifications
XGS-4526/4528F/4728F User’s Guide
465
Number of Login 
Accounts Configurable 
on the Switch
4 management accounts configured on the Switch. 
Authentication via RADIUS and TACACS+ also available.
IP Routing Domain 
An IP interface (also known as an IP routing domain) is not 
bound to a physical port. Configure an IP routing domain to 
allow the Switch to route traffic between different networks. 
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.
VLAN Stacking 
Use VLAN stacking to add an outer VLAN tag to the inner IEEE 
802.1Q tagged frames that enter the network. By tagging the 
tagged frames (“double-tagged” frames), the service provider 
can manage up to 4,094 VLAN groups with each group 
containing up to 4,094 customer VLANs. This allows a service 
provider to provide different service, based on specific VLANs, 
for many different customers. 
MAC Address Filter
Filter traffic based on the source and/or destination MAC 
address and VLAN group (ID).
DHCP (Dynamic Host 
Configuration Protocol)
Use this feature to have the Switch assign IP addresses, an IP 
default gateway and DNS servers to computers on your 
network.
IGMP Snooping
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. 
Differentiated Services 
(DiffServ)
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. 
Classifier and Policy 
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
Queuing is used to help solve performance degradation when 
there is network congestion. Three 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. 
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. 
Static Route
Static routes tell the Switch how to forward IP traffic when you 
configure the TCP/IP parameters manually.
Table 172   Firmware Specifications 
FEATURE
DESCRIPTION