H3C Technologies H3C S12500-X Series Switches - Manual (Page 69)

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Figure 14 Example of centralized VXLAN IP gateway deployment
Distributed VXLAN IP gateway deployment
As shown in Figure 15 , each site's VTEP acts as a gateway to perform Layer 3 forwarding for the VXLANs
of the local site. A VTEP acts as a border gateway to the Layer 3 network for the VXLANs.
IMPORTANT:
The site-connected gateways are called distributed gateways. On the distributed gateways, you must
enable local proxy ARP.
VXLAN tunnel
VTEP 1 VTEP 2
Server Server
Site 1 Site 2
VM
VM
VM
VSI/VXLAN 10
VSI/VXLAN 20
VSI/VXLAN 30
VM
VM
VM
VSI/VXLAN 10
VSI/VXLAN 20
VSI/VXLAN 30
Transport
network
P
10.1.1.11
20.1.1.11
30.1.1.11
10.1.1.12
20.1.1.12
30.1.1.12
VX
LA
N tu
nne
l
VX
LA
N
tun
ne
l
VTEP 3/Centralized VXLAN IP
gateway
VSI/VXLAN 10
VSI/VXLAN 20
VSI/VXLAN 30
VSI-interface10
10.1.1.1/24
VSI-interface20
20.1.1.1/24
VSI-interface30
30.1.1.1/24
L3 network