Centralized Vxlan Gateway Group Deployment - HPE FlexFabric 5940 Series Configuration Manual

4. VTEP 1 forwards the ARP reply to the VM.
5. The VM learns the MAC address of the gateway, and sends the Layer 3 traffic to the gateway.
6. VTEP 3 removes the VXLAN encapsulation and inner Ethernet header for the traffic, and
forwards the traffic to the destination node.
Inter-VXLAN forwarding is the same as this process except for the last step. At the last step of
inter-VLAN forwarding, the gateway replaces the source-VXLAN encapsulation with the
destination-VXLAN encapsulation, and then forwards the traffic.
Figure 13 Example of centralized VXLAN IP gateway deployment
VM
VM
VM
Server
Site 1

Centralized VXLAN gateway group deployment

As shown in
reliable gateway services for VMs in the VXLANs. All member VTEPs in the group participate in
Layer 3 forwarding and load share traffic between the Layer 3 network and the VXLANs. This design
distributes processing among multiple VTEPs and prevents single points of failure.
10.1.1.11
VSI/VXLAN 10
20.1.1.11
VSI/VXLAN 20
30.1.1.11
VSI/VXLAN 30
VTEP 1
Figure 14, a VTEP group uses redundant centralized VXLAN IP gateways to provide
VSI/VXLAN 10
VSI/VXLAN 20
VSI/VXLAN 30
Transport
network
VXLAN tunnel
P
VTEP 3/Centralized VXLAN IP
gateway
VSI/VXLAN 10
VSI/VXLAN 20
VSI/VXLAN 30
L3 network
35
10.1.1.12
VM
20.1.1.12
VM
30.1.1.12
VM
VTEP 2
Server
Site 2
VSI-interface10
10.1.1.1/24
VSI-interface20
20.1.1.1/24
VSI-interface30
30.1.1.1/24