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Figure 1 VXLAN Networking Topology with Centralized Gateway Deployment
As shown in Figure 1, in the centralized gateway scenario, an enterprise has its own servers in different data centers, Server 1 belongs to VLAN 200, Server 1 belongs to VLAN 100 and Server 3 belongs to VLAN 300. Server 1, Server 2 and Server 3 are located in different network segments. Cross-subnet packet forwarding needs to be implemented through a centralized Layer 3 gateway.
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admin@Switch1# set vlans vlan-id 200 admin@Switch1# set vlans vlan-id 3073 admin@Switch1# set vlans vlan-id 3073 l3-interface vlan3073 admin@Switch1# set vlan-interface interface vlan3073 vif vlan3073 address 100.30.3.3 prefix-length 24 admin@Switch1# set interface gigabit-ethernet gete-1/1/1 family ethernet-switching native-vlan-id 3073 admin@Switch1# set interface gigabit-ethernet gete-1/1/5 family ethernet-switching port-mode trunk admin@Switch1# set interface gigabit-ethernet gete-1/1/5 family ethernet-switching vlan members 200 |
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admin@Switch1# set vxlans source-interface loopback address 3.3.3.3 admin@Switch1# set vxlans vni 10030 interface gete-1/1/5 vlan 200 admin@Switch1# set vxlans vni 10030 flood vtep 1.1.1.1 |
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admin@Switch2# set vlans vlan-id 100 admin@Switch2# set vlans vlan-id 200 admin@Switch2# set vlans vlan-id 4094 admin@Switch2# set vlans vlan-id 4094 l3-interface vlan4094 admin@Switch2# set vlan-interface interface vlan4094 vif vlan4094 address 100.10.2.2 prefix-length 24 admin@Switch2# set interface gigabit-ethernet gete-1/1/25 family ethernet-switching native-vlan-id 4094 admin@Switch2# set interface gigabit-ethernet gete-1/1/3 family ethernet-switching port-mode trunk admin@Switch2# set interface gigabit-ethernet gete-1/1/3 family ethernet-switching vlan members 100 |
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admin@Switch2# set vxlans source-interface loopback address 2.2.2.2 admin@Switch2# set vxlans vni 10010 interface gete-1/1/3 vlan 100 admin@Switch2# set vxlans vni 10010 flood vtep 1.1.1.1 |
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admin@Switch3# set vlans vlan-id 100 l3-interface vlan100 admin@Switch3# set vlans vlan-id 200 l3-interface vlan200 admin@Switch3# set vlans vlan-id 300 l3-interface vlan300 admin@Switch3# set vlans vlan-id 3073 l3-interface vlan3073 admin@Switch3# set vlans vlan-id 4094 l3-interface vlan4094 admin@Switch3# set l3-interface vlan-interface vlan100 address 192.168.10.254 prefix-length 24 admin@Switch3# set l3-interface vlan-interface interface vlan3073 vifvlan200 address 192.168.20.254 prefix-length 24 admin@Switch3# set l3-interface vlan-interface vlan300 address 192.168.30.254 prefix-length 24 admin@Switch3# set l3-interface vlan-interface vlan3073 address 100.30.3.4 prefix-length 24 admin@Switch3# set vlanl3-interface vlan-interface vlan4094 vif vlan4094 address 100.10.2.1 prefix-length 24 admin@Switch3# set interface gigabit-ethernet te-1/1/2 family ethernet-switching native-vlan-id 100300 admin@Switch3# set interface gigabit-ethernet gete-1/1/2 family ethernet-switching port-mode trunk admin@Switch3# set interface gigabit-ethernet ge-1/1/2 family ethernet-switching vlan members 200 admin@Switch3# set interface gigabit-ethernet te-1/1/23 family ethernet-switching native-vlan-id 3073 admin@Switch3# set interface gigabit-ethernet gete-1/1/27 family ethernet-switching native-vlan-id 4094 |
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admin@Switch1# run show vxlan tunnel Total number of tunnels: 1 VNI 10030, Encap:service-vlan-delete, Decap:service-vlan-add-replace src addr:3.3.3.3, dst addr:1.1.1.1, state:UP traffic type:all nexthops:100.30.3.4 output ports:gete-1/1/1 admin@Switch2# run show vxlan tunnel Total number of tunnels: 1 VNI 10010, Encap:service-vlan-delete, Decap:service-vlan-add-replace src addr:2.2.2.2, dst addr:1.1.1.1, state:UP traffic type:all nexthops:100.10.2.1 output ports:gete-1/1/25 admin@Switch3# run show vxlan tunnel Total number of tunnels: 2 VNI 10010, Encap:service-vlan-delete, Decap:service-vlan-add-replace src addr:1.1.1.1, dst addr:2.2.2.2, state:UP traffic type:all nexthops:100.10.2.2 output ports:te-1/1/27 VNI 10030, Encap:service-vlan-delete, Decap:service-vlan-add-replace src addr:1.1.1.1, dst addr:3.3.3.3, state:UP traffic type:all nexthops:100.30.3.3 output ports:te-1/1/23 |
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admin@Switch1# run show vxlan address-table VNID MAC address Type Interface VTEP ----------- ----------------- ------- ---------------- --------------- 10030 00:00:00:00:22:22 Dynamic gete-1/1/5 10030 50:9a:4c:e6:7b:71 Dynamic 1.1.1.1 Entries in access port: 1 Entries in network port: 1 admin@Switch2# run show vxlan address-table VNID MAC address Type Interface VTEP ----------- ----------------- ------- ---------------- --------------- 10010 00:00:00:00:44:44 Dynamic gete-1/1/3 10010 50:9a:4c:e6:7b:71 Dynamic 1.1.1.1 Entries in access port: 1 Entries in network port: 1 admin@Switch3# run show vxlan address-table VNID MAC address Type Interface VTEP ----------- ----------------- ------- ---------------- --------------- 10010 00:00:00:00:44:44 Dynamic 2.2.2.2 10030 00:00:00:00:22:22 Dynamic 3.3.3.3 Entries in access port: 0 Entries in network port: 2 |
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admin@Switch3# run show vxlan arp IP-ADDRESS MAC-ADDRESS VNI REMOTE-VTEP Interface Status Age --------------- ----------------- -------- --------------- ---------- ------- ---- 192.168.10.1 00:00:00:00:44:44 10010 2.2.2.2 2 Dynamic Dynamic 0 192.168.20.1 00:00:00:00:22:22 10030 3.3.3.3 3 Dynamic Dynamic 0 |