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• On Device C, VLAN 6 is a primary VLAN that is associated with secondary VLANs 3 and 4.
GigabitEthernet 1/0/5 is in VLAN 6. GigabitEthernet 1/0/3 is in VLAN 3. GigabitEthernet 1/0/4 is
in VLAN 4.
• Device A is aware of only VLAN 5 on Device B and VLAN 6 on Device C.
Figure 44 Network diagram
Configuration procedure
This example describes the configurations on Device B and Device C.
1. Configure Device B:
# Configure VLAN 5 as a primary VLAN.
<DeviceB> system-view
[DeviceB] vlan 5
[DeviceB-vlan5] private-vlan primary
[DeviceB-vlan5] quit
# Create VLANs 2 and 3.
[DeviceB] vlan 2 to 3
# Configure the uplink port GigabitEthernet 1/0/5 as a promiscuous port of VLAN 5.
[DeviceB] interface gigabitethernet 1/0/5
[DeviceB-GigabitEthernet1/0/5] port private-vlan 5 promiscuous
[DeviceB-GigabitEthernet1/0/5] quit
# Assign the downlink port GigabitEthernet 1/0/1 to VLAN 3, and configure the port as a host
port.
[DeviceB] interface gigabitethernet 1/0/1
[DeviceB-GigabitEthernet1/0/1] port access vlan 3
[DeviceB-GigabitEthernet1/0/1] port private-vlan host
[DeviceB-GigabitEthernet1/0/1] quit
# Assign the downlink port GigabitEthernet 1/0/2 to VLAN 2, and configure the port as a host
port.
[DeviceB] interface gigabitethernet 1/0/2
[DeviceB-GigabitEthernet1/0/2] port access vlan 2
[DeviceB-GigabitEthernet1/0/2] port private-vlan host
[DeviceB-GigabitEthernet1/0/2] quit
# Associate the secondary VLANs 2 and 3 with the primary VLAN 5.
[DeviceB] vlan 5
[DeviceB-vlan5] private-vlan secondary 2 to 3
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