Virtual Lan (Vlan) Support - S2Konnect N-3010AVB User Manual

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When a component in the tree is selected, the corresponding parameters are displayed.
For more information on the „Marvell Network Control", refer to the online help available for this
program (click the HELP button when the program is running).

Virtual LAN (VLAN) Support

A virtual LAN is a group of network devices that belong to the same network segment, regardless of
the physical network structure. A logical network structure based on business requirements is pos-
sible. With virtual networks, physical location no longer specifies the network a user is assigned to:
user clients with similar networking requirements can be united in one network group or VLAN. This
VLAN can be established to meet a wide variety of organizational or technical needs. All members
of a department can, for example, be gathered into a network group, even if they are distributed
over several buildings. Colleagues working on the same project can be united in a common VLAN,
even if they belong to different departments in, different buildings or even different locations. Other
network groups can be made invisible to these users. Using virtual LANs can improve network
performance, limit broadcast storms, minimize security problems, and ease the management task.
By means of Frame Tagging, the S2Konnect N-3010AVB 10/100/1000Base-T Adapters, can sup-
port up to 64 IP address assignments in a single network connection. Thus, multiple VLANs can be
configured for one port. Stations can be accessed from systems in multiple IP subnets without tra-
versing routers. Additionally, multiple application VLANs can be defined to isolate traffic for perfor-
mance and security purposes. For this reason, the server can be physically connected to a single
switch port but still belong to several VLANs. The Gigabit Ethernet adapter can receive tagged
packets and is able to tag outgoing packets. The switch the adapter is connected to must support
VLAN tagging according to IEEE 802.1q.
For several operating systems, Marvell offers drivers that support VLAN tagging and thus can be
applied for VLAN servers and terminal units.
For more information on virtual LANs, refer to the White Paper "Virtual Networks", which can be
found SysKonnect web site in the Download Center. Also see the corresponding readme files for
the respective drivers.
S2Konnect N-3010AVB
Figure 4. Adapter overview in "Marvell Network Control"