26.2.5 Configuring VXLAN Access Ports

(1) VLAN Mapping

Set the configuration to connect base A and base B through VXLAN tunneling. Use VLAN mapping as VNI mapping method. The following figure shows a sample configuration for VLAN mapping.

Figure 26-10: Sample VLAN Mapping Configurations

Points to note

Set the following for VLAN mapping.

• mode

  To operate in a mode that extends the capacity limit, specify vxlan vlan-mapping mode command.. If you set vxlan vlan-mapping mode command, the overlay (VXLAN) program restarts. Make this setting prior to starting operation.

• Mapping VNI

• Mapping VLAN to Ports

  After assigning a VNI ID to VLAN, configure VLAN ID that corresponds to the physical port or channel group. If a VLAN ID is assigned to a physical port or channel group and a VNI ID is set to the corresponding VLAN, frames received on VXLAN Access port may be temporarily looped back for communication.

Command examples

1. (config)# vlan 20

   (config-vlan)# vxlan-vni 2

   (config-vlan)# exit

   Assign a VNI ID to VLAN.

2. (config)# interface gigabitethernet 1/0/1

   (config-if)# switchport mode access

   (config-if)# switchport access vlan 20

   (config-if)# exit

   Assign VLAN 20 to ports 1/0/1.

3. (config)# interface gigabitethernet 1/0/2

   (config-if)# switchport mode access

   (config-if)# switchport access vlan 20

   (config-if)# exit

   Assign VLAN 20 to ports 1/0/2.

   Set the same VNI on Site B in the same way.

Notes

When deleting a VXLAN Access port, delete VLAN ID from the physical port or channel group, and then delete VNI ID set for the corresponding VLAN. When a VLAN ID is assigned to a physical port or channel group and a VNI ID is deleted from the corresponding VLAN, frames received on VXLAN Access port may be temporarily looped back for communication.

(2) Subinterface mapping

Set the configuration to connect base A and base B, base A and base C with VXLAN tunneling. Use subinterface mapping as VNI mapping method. The following figure shows an example configuration for subinterface mapping.

Figure 26-11: Example of subinterface mapping configuration

Points to note

The following information is set for subinterface mapping:

• Sub interface

• Mapping VNI

Command examples

1. (config)# interface gigabitethernet 1/0/1

   (config-if)# no switchport

   (config-if)# exit

   Disable Layer 2 interface configuration on port 1/0/1.

2. (config)# interface gigabitethernet 1/0/1.100

   (config-subif)# encapsulation dot1q 10

   (config-subif)# vxlan-vni 2

   (config-subif)# exit

   Sets subinterface 1/0/1.100 on port 1/0/1 and 10 as VLAN ID. It is assigned to VNI 2.

3. (config)# interface gigabitethernet 1/0/1.200

   (config-subif)# encapsulation dot1q 20

   (config-subif)# vxlan-vni 3

   (config-subif)# exit

   Sets subinterface 1/0/1.200 on port 1/0/1 and 20 as VLAN ID. It is assigned to VNI 3.