Lantech LES-2400-RPS, Руководство пользователя

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VLAN Configuration
A Virtual LAN (VLAN) is a logical network grouping that limits the broadcast domain,
which allows you to isolate network traffic. Therefore only the members of the same
VLAN will receive traffic from the ones among the same VLAN. Basically, creating a
VLAN on a switch is logically equivalent of reconnecting a group of network devices to
another Layer 2 switch; however, all the network devices are still plugged into the same
switch physically.
This switch supports
Port-based
and
802.1Q
(tagged-based) VLAN. Please read the
following instructions to configure the appropriate type of VLAN for your need.
Port-based VLAN
A port-based VLAN normally consists of its members
—ports, which means the VLAN is
created by grouping the selected ports. This method provides the convenience for users
to configure a simple VLAN easily without complicated steps. Packets can go among only
members of the same VLAN group. Note all unselected ports are treated as belonging to
another single VLAN that is, technically, a single broadcast domain. If the port-based
VLAN is enabled, the VLAN-tagging will be ignored. Port-based VLAN allows the user to
create separate VLANs to limit the unnecessary packet flooding; however, for the
purpose of sharing resource, a single port called a common port can belongs to different
VLANs, which all the member devices (ports) in different VLANs have the permission to
access the common port while they still cannot communicate with each other in different
VLANs.