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Next we setup the layer 3 VLAN interfaces and configure IP addresses for these interfaces. The MTU value of layer 3 interfaces is set to 1450 to ensure there is enough space for the overlay VXLAN header. The switch will complain and refuse to commit the configuration if MTU size is not set to 1450.
Then we setup VXLAN VNIs, enable VLAN to VNI mapping and map VNIs to VLAN IDs. Finally we enable IP routing on the device and configure BGP related parameters such as router ID, BGP neighbor and enabling advertising all VNIs.
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admin@router1# set interface gigabit-ethernet te-1/1/1 family ethernet-switching native-vlan-id 100 admin@router1# set interface gigabit-ethernet te-1/1/10 family ethernet-switching native-vlan-id 1111 admin@router1# set interface gigabit-ethernet te-1/1/10 family ethernet-switching port-mode "trunk" admin@router1# set interface gigabit-ethernet te-1/1/10 family ethernet-switching vlan members 2221 admin@router1# set interface gigabit-ethernet te-1/1/11 family ethernet-switching native-vlan-id 2222 admin@router1# set l3-interface loopback lo address 201.201.201.201 prefix-length 32 admin@router1# set l3-interface loopback lo address 201.201.201.88 prefix-length 32 admin@router1# set l3-interface loopback lo address 201::201 prefix-length 128 admin@router1# set l3-interface vlan-interface vlan100 mtu 1450 admin@router1# set l3-interface vlan-interface vlan100 address 100.1.1.201 prefix-length 24 admin@router1# set l3-interface vlan-interface vlan100 address 100::201 prefix-length 64 admin@router1# set l3-interface vlan-interface vlan2221 vrf "vrf1" admin@router1# set l3-interface vlan-interface vlan2221 mtu 1450 admin@router1# set l3-interface vlan-interface vlan2221 address 21.1.1.201 prefix-length 24 admin@router1# set l3-interface vlan-interface vlan2222 vrf "vrf1" admin@router1# set l3-interface vlan-interface vlan2222 mtu 1450 admin@router1# set l3-interface vlan-interface vlan2222 address 22.1.1.201 prefix-length 24 admin@router1# set l3-interface vlan-interface vlan1111 vrf "vrf1" admin@router1# set l3-interface vlan-interface vlan1111 mtu 1450 "vrf1" admin@router1# set vlans vlan-id 100 l3-interface "vlan100" admin@router1# set vlans vlan-id 1111 l3-interface "vlan1111" admin@router1# set vlans vlan-id 2221 l3-interface "vlan2221" admin@router1# set vlans vlan-id 2222 l3-interface "vlan2222" |
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admin@router1# set protocols bgp local-as 201
admin@router1# set protocols bgp router-id 201.201.201.201
admin@router1# set protocols bgp neighbor 100.1.1.134 remote-as "external"
admin@router1# set protocols bgp neighbor 100.1.1.134 update-source "100.1.1.201"
admin@router1# set protocols bgp neighbor 100.1.1.134 evpn activate true
admin@router1# set protocols bgp ipv4-unicast network 201.201.201.201/32
admin@router1# set protocols bgp ipv4-unicast network 201.201.201.88/32
admin@router1# set protocols bgp evpn advertise-all-vni
admin@router1# set protocols bgp evpn advertise ipv4-unicast
admin@router1# set protocols bgp vrf vrf1 local-as 201
admin@router1# set protocols bgp vrf vrf1 router-id 201.201.201.201
admin@router1# set protocols bgp vrf vrf1 ipv4-unicast network 22.1.1.0/24
admin@router1# set protocols bgp vrf vrf1 evpn advertise ipv4-unicast |
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admin@router2# set interface gigabit-ethernet ge-1/1/1 family ethernet-switching native-vlan-id 100 admin@router2# set interface gigabit-ethernet ge-1/1/2 disable true admin@router2# set interface gigabit-ethernet ge-1/1/2 family ethernet-switching native-vlan-id 2221 admin@router2# set interface gigabit-ethernet gete-1/1/10 family ethernet-switching native-vlan-id 1111 admin@router2# set interface gigabit-ethernet gete-1/1/10 family ethernet-switching port-mode "trunk" admin@router2# set interface gigabit-ethernet gete-1/1/10 family ethernet-switching vlan members 2221 admin@router2# set interface gigabit-ethernet gete-1/1/10 family ethernet-switching vlan members 2222 admin@router2# set interface gigabit-ethernet gete-1/1/11 family ethernet-switching native-vlan-id 2222 admin@router2# set interface gigabit-ethernet gete-1/1/11 family ethernet-switching port-mode "trunk" admin@router2# set interface gigabit-ethernet gete-1/1/11 family ethernet-switching vlan members 3333 admin@router2# set l3-interface loopback lo address 134.134.134.134 prefix-length 32 admin@router2# set l3-interface vlan-interface vlan2221 vrf "vrf1" admin@router2# set l3-interface vlan-interface vlan2221 mtu 1450 admin@router2# set l3-interface vlan-interface vlan2221 address 21.1.1.134 prefix-length 24 admin@router2# set l3-interface vlan-interface vlan100 mtu 1450 admin@router2# set l3-interface vlan-interface vlan100 address 100.1.1.134 prefix-length 24 admin@router2# set l3-interface vlan-interface vlan100 address 100::134 prefix-length 64 admin@router2# set l3-interface vlan-interface vlan3333 vrf "vrf1" admin@router2# set l3-interface vlan-interface vlan3333 mtu 1450 admin@router2# set l3-interface vlan-interface vlan3333 address 33.1.1.134 prefix-length 24 admin@router2# set l3-interface vlan-interface vlan1111 vrf "vrf1" admin@router2# set l3-interface vlan-interface vlan1111 mtu 1450 admin@router2# set vlans vlan-id 100 l3-interface "vlan100" admin@router2# set vlans vlan-id 1111 l3-interface "vlan1111" admin@router2# set vlans vlan-id 2221 l3-interface "vlan2221" admin@router2# set vlans vlan-id 2222 l3-interface "vlan2222" admin@router2# set vlans vlan-id 3333 l3-interface "vlan3333" |
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admin@router2# set protocols bgp local-as 134
admin@router2# set protocols bgp router-id 134.134.134.134
admin@router2# set protocols bgp neighbor 100.1.1.201 remote-as "external"
admin@router2# set protocols bgp neighbor 100.1.1.201 update-source "100.1.1.134"
admin@router2# set protocols bgp neighbor 100.1.1.201 evpn activate true
admin@router2# set protocols bgp ipv4-unicast network 134.134.134.134/32
admin@router2# set protocols bgp evpn advertise-all-vni
admin@router2# set protocols bgp vrf vrf1 local-as 134
admin@router2# set protocols bgp vrf vrf1 router-id 134.134.134.134
admin@router2# set protocols bgp vrf vrf1 ipv4-unicast network 33.1.1.0/24
admin@router2# set protocols bgp vrf vrf1 evpn advertise ipv4-unicast |
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admin@router2# run show vxlan evpn route
VRF-ID ROUTE NextHop VNI Interface
-------- ---------------- ------------- ---------- -----------------
1 22.1.1.0/24 201.201.201.201 9999 vlan100
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To check the routing table of a device, run the command run show route vrf vrf1. We can see that there is a BGP route for subnet 22.1.1.0/24 via 201.201.201.201 to reach server 3.
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