Unambiguous Dot1q termination configuration example

As shown in Figure 3, configure unambiguous Dot1q termination on subinterfaces of the device to implement intra-VLAN and inter-VLAN communications between hosts.

1. Configure Host A, Host B, Host C, and Host D:

   # On Host A, specify 1.1.1.1/8 and 1.0.0.1/8 as its IP address and gateway IP address, respectively. (Details not shown.)

   # On Host B, specify 2.2.2.2/8 and 2.0.0.1/8 as its IP address and gateway IP address, respectively. (Details not shown.)

   # On Host C, specify 3.3.3.3/8 and 3.0.0.1/8 as its IP address and gateway IP address, respectively. (Details not shown.)

   # On Host D, specify 4.4.4.4/8 and 4.0.0.1/8 as its IP address and gateway IP address, respectively. (Details not shown.)

2. Configure Layer 2 Switch A:

   # Create VLAN 10.

   <L2_SwitchA> system-view
   [L2_SwitchA] vlan 10
   

   # Assign GigabitEthernet 1/0/2 to VLAN 10.

   [L2_SwitchA-vlan10] port gigabitethernet 1/0/2
   [L2_SwitchA-vlan10] quit
   

   # Create VLAN 20.

   [L2_SwitchA] vlan 20
   

   # Assign GigabitEthernet 1/0/3 to VLAN 20.

   [L2_SwitchA-vlan20] port gigabitethernet 1/0/3
   [L2_SwitchA-vlan20] quit
   

   # Configure GigabitEthernet 1/0/1 as a trunk port, and assign the port to VLANs 10 and 20.

   [L2_SwitchA] interface gigabitethernet 1/0/1
   [L2_SwitchA-GigabitEthernet1/0/1] port link-type trunk
   [L2_SwitchA-GigabitEthernet1/0/1] port trunk permit vlan 10 20
   

3. Configure Layer 2 Switch B in the same way you configure Layer 2 Switch A. (Details not shown.)

4. Configure the device:

   # Create GigabitEthernet 1/0/1.10, and assign an IP address to this interface.

   <Device> system-view
   [Device] interface gigabitethernet 1/0/1.10
   [Device-GigabitEthernet1/0/1.10] ip address 1.0.0.1 255.0.0.0
   

   # Configure GigabitEthernet 1/0/1.10 to terminate packets tagged with VLAN 10.

   [Device-GigabitEthernet1/0/1.10] vlan-type dot1q vid 10
   [Device-GigabitEthernet1/0/1.10] quit
   

   # Create GigabitEthernet 1/0/1.20, and assign an IP address to this interface.

   [Device] interface gigabitethernet 1/0/1.20
   [Device-GigabitEthernet1/0/1.20] ip address 2.0.0.1 255.0.0.0
   

   # Configure GigabitEthernet 1/0/1.20 to terminate packets tagged with VLAN 20.

   [Device-GigabitEthernet1/0/1.20] vlan-type dot1q vid 20
   [Device-GigabitEthernet1/0/1.20] quit
   

   # Configure GigabitEthernet 2/0/1.10, and assign an IP address to this interface.

   [Device] interface gigabitethernet 2/0/1.10
   [Device-GigabitEthernet2/0/1.10] ip address 3.0.0.1 255.0.0.0
   

   # Configure GigabitEthernet 2/0/1.10 to terminate packets tagged with VLAN 10.

   [Device-GigabitEthernet2/0/1.10] vlan-type dot1q vid 10
   [Device-GigabitEthernet2/0/1.10] quit
   

   # Configure GigabitEthernet 2/0/1.20, and assign an IP address to this interface.

   [Device] interface gigabitethernet 2/0/1.20
   [Device-GigabitEthernet2/0/1.20] ip address 4.0.0.1 255.0.0.0
   

   # Configure GigabitEthernet 2/0/1.20 to terminate packets tagged with VLAN 20.

   [Device-GigabitEthernet2/0/1.20] vlan-type dot1q vid 20
   [Device-GigabitEthernet2/0/1.20] quit
   

# Verify that Host A, Host B, Host C, and Host D can ping each other. (Details not shown.)