Switching
[ Switching > VLAN ]
190
RM GUI GRS
Release
8.0
09/2019
Buttons
You find the description of the standard buttons in section “Buttons” on page 13.
5.8 VLAN
[ Switching > VLAN ]
With VLAN (Virtual Local Area Network) you distribute the data traffic in the physical network to
logical subnetworks. This provides you with the following advantages:
High flexibility
– With VLAN you distribute the data traffic to logical networks in the existing infrastructure.
Without VLAN, it would be necessary to have additional devices and complicated cabling.
– With VLAN you specify network segments independently of the location of the individual end
devices.
Improved throughput
– In VLANs data packets can be transferred by priority.
When the priority is high, the device transfers the data of a VLAN preferentially, for example
for time-sensitive applications such as VoIP phone calls.
– When the data packets and Broadcasts are distributed in small network segments instead of
in the entire network, the network load is considerably reduced.
Increased security
The distribution of the data traffic among individual logical networks makes unwanted accessing
more difficult and strengthens the system against attacks such as MAC Flooding or MAC
Spoofing.
The device supports packet-based “tagged” VLANs according to the IEEE 802.1Q standard. The
VLAN tagging in the data packet indicates the VLAN to which the data packet belongs.
The device transmits the tagged data packets of a VLAN only on ports that are assigned to the
same VLAN. This reduces the network load.
The device learns the MAC addresses for every VLAN separately (independent VLAN learning).
The device prioritizes the received data stream in the following sequence:
Voice VLAN
Port-based VLAN
The menu contains the following dialogs:
VLAN Global
VLAN Configuration
VLAN Port
VLAN Voice
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