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# Create a VXLAN tunnel to Switch C. The tunnel interface name is Tunnel 3.
[SwitchB] interface tunnel 3 mode vxlan
[SwitchB-Tunnel3] source 2.2.2.2
[SwitchB-Tunnel3] destination 3.3.3.3
[SwitchB-Tunnel3] quit
# Assign Tunnel 2 and Tunnel 3 to VXLAN 10.
[SwitchB] vsi vpna
[SwitchB-vsi-vpna] vxlan 10
[SwitchB-vsi-vpna-vxlan-10] tunnel 2
[SwitchB-vsi-vpna-vxlan-10] tunnel 3
[SwitchB-vsi-vpna-vxlan-10] quit
[SwitchB-vsi-vpna] quit
# Assign Tunnel 2 and Tunnel 3 to VXLAN 20.
[SwitchB] vsi vpnb
[SwitchB-vsi-vpnb] vxlan 20
[SwitchB-vsi-vpnb-vxlan-20] tunnel 2
[SwitchB-vsi-vpnb-vxlan-20] tunnel 3
[SwitchB-vsi-vpnb-vxlan-20] quit
[SwitchB-vsi-vpnb] quit
# Create VSI-interface 1 and assign the interface an IPv6 address.
[SwitchB] interface vsi-interface 1
[SwitchB-Vsi-interface1] ipv6 address 1::2/64
[SwitchB-Vsi-interface1] quit
# Create VSI-interface 2 and assign the interface an IPv6 address.
[SwitchB] interface vsi-interface 2
[SwitchB-Vsi-interface2] ipv6 address 4::2/64
[SwitchB-Vsi-interface2] quit
# Specify VSI-interface 1 as the gateway interface for VSI vpna.
[SwitchB] vsi vpna
[SwitchB-vsi-vpna] gateway vsi-interface 1
[SwitchB-vsi-vpna] quit
# Specify VSI-interface 2 as the gateway interface for VSI vpnb.
[SwitchB] vsi vpnb
[SwitchB-vsi-vpnb] gateway vsi-interface 2
[SwitchB-vsi-vpnb] quit
6. Configure Switch C:
# Enable L2VPN.
<SwitchC> system-view
[SwitchC] l2vpn enable
# Create VSI vpna and VXLAN 10.
[SwitchC] vsi vpna
[SwitchC-vsi-vpna] vxlan 10
[SwitchC-vsi-vpna-vxlan-10] quit
[SwitchC-vsi-vpna] quit
# Create VSI vpnb and VXLAN 20.
[SwitchC] vsi vpnb
[SwitchC-vsi-vpnb] vxlan 20