3com 2848-sfp plus Guia Do Utilizador

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Figure 14   Untagged VLAN Configuration Example

This example explains how you can set up a simple 
VLAN Configuration on your Switch using untagged 
connections. If you want to add ports 7, 8 and 16 to 
VLAN2, as shown in Figure 14, so that the ports on the 
default VLAN1 and the ports on VLAN2 cannot 
communicate with each other, do the following:

Use the Create VLANs screen (Figure 13) to create 
VLAN2. (VLAN1 is the default VLAN and already exists.)

Click the icon under port number 7 until you see the 
letter U for Untagged.

Repeat step 2 for ports 8 and 16.

Click Apply.

Ports 7, 8 and 16 now belong to VLAN2, and will not 
communicate with any other ports until you add 
another port to the VLAN, or change the port 
configuration.

This example explains how you can set up a VLAN 
across two Switches using tagged connections. This 
enables ports that are members of the same VLAN (but 
are on different switches) to communicate, provided 
that a port on each Switch is set to tagged, and that 
these ports are connected.

Figure 15   Tagged VLAN Configuration Example

Baseline Switch 2848-SFP Plus

Server
in VLAN 2

Endstations
in VLAN 2

Endstations
in VLAN 1

Server
in VLAN 1