VLANs
11.1
Examples of VLANs
134
UM Config GRS
Release
8.0
09/2019
11.1
Examples of VLANs
The following practical examples provide a quick introduction to the structure of a VLAN.
Note:
When configuring VLANs you use an interface for accessing the device management that
will remain unchanged. For this example, you use either interface 1/6 or the serial connection to
configure the VLANs.
11.1.1
Example 1
The example displays a minimal VLAN configuration (port-based VLAN). An administrator has
connected multiple end devices to a transmission device and assigned them to 2 VLANs. This
effectively prohibits any data transmission between the VLANs, whose members communicate only
within their own VLANs.
Figure 23: Example of a simple port-based VLAN
When setting up the VLANs, you create communication rules for every port, which you enter in
ingress (incoming) and egress (outgoing) tables.
The ingress table specifies which VLAN ID a port assigns to the incoming data packets. Hereby,
you use the port address of the end device to assign it to a VLAN.
The egress table specifies on which ports the device sends the packets from this VLAN.
T
= Tagged (with a tag field, marked)
U
= Untagged (without a tag field, unmarked)
1
3
2
VLAN
2
VLAN
3
A
B
C
D
4
5
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