Specifications

Switching 8-19
Software Release 2.7.3
C613-03098-00 REV A
If the network includes VLANs that do not need to share network resources or
span several switches, VLAN membership can usefully be based on untagged
ports. Otherwise, VLAN membership should be determined by tagging (see
“VLAN Tagging” on page 8-15).
Figure 8-3 on page 8-19 shows two port-based VLANs with untagged ports.
Ports 1-3 belong to the marketing VLAN, and ports 14-16 belong to the training
VLAN. The switch acts as two separate bridges: one that forwards traffic
between the ports belonging to the marketing VLAN, and a second one that
forwards traffic between the ports belonging to the training VLAN. Devices in
the marketing VLAN can communicate with devices in the training VLAN only
by using the switch’s routing functions.
Figure 8-3: VLANs with untagged ports
Creating VLANs
To summarise the process:
1. Create the VLAN.
2. Add tagged ports to the VLAN, if required.
3. Add untagged ports to the VLAN, if required.
To create a VLAN, use the command:
create vlan=vlan-name vid=2..4094
Every port must belong to a VLAN unless it is the mirror port. By default, all
ports belong to the default VLAN as untagged ports.
Training VLAN
Marketing VLAN
411
Port 14
SWITCH2
Port 15
Port 16
Port 1
Port 2
Port 3
Switch