Each overlay network is known as a VXLAN Segment and identified by a unique
24-bit segment ID called a VXLAN Network Identifier (VNI).
+VXLAN encapsulation add 50bytes overhead, so you need to increase mtu on your host
+physical interfaces to 1550 at minimum. (or decrease mtu inside your vms to 1450)
+
For BUM traffic (broadcast / unknown unicast traffic, multicast),
we have 3 differents vxlan setup modes : multicast, unicast, bgp-evpn
----
auto eno1
iface eno1 inet manual
+ mtu 1550
auto vmbr0
iface vmbr0 inet static
auto vxlan2
iface vxlan2 inet manual
+ vxlan-id 2
vxlan-svcnodeip 225.20.1.1
vxlan-physdev eno1
auto vxlan3
iface vxlan3 inet manual
+ vxlan-id 3
vxlan-svcnodeip 225.20.1.1
vxlan-physdev eno1
----
auto eno1
iface eno1 inet manual
+ mtu 1550
auto vmbr0
iface vmbr0 inet static
auto vxlan2
iface vxlan2 inet manual
+ vxlan-id 2
vxlan-svcnodeip 225.20.1.1
vxlan-physdev eno1
auto vxlan3
iface vxlan3 inet manual
+ vxlan-id 3
vxlan-svcnodeip 225.20.1.1
vxlan-physdev eno1
----
auto eno1
iface eno1 inet manual
+ mtu 1550
auto vmbr0
iface vmbr0 inet static
auto vxlan2
iface vxlan2 inet manual
+ vxlan-id 2
vxlan-svcnodeip 225.20.1.1
vxlan-physdev eno1
auto vxlan3
iface vxlan3 inet manual
+ vxlan-id 3
vxlan-svcnodeip 225.20.1.1
vxlan-physdev eno1
----
auto eno1
iface eno1 inet manual
+ mtu 1550
auto vmbr0
iface vmbr0 inet static
auto vxlan2
iface vxlan2 inet manual
+ vxlan-id 2
vxlan_remoteip 192.168.0.2
vxlan_remoteip 192.168.0.3
auto vxlan3
iface vxlan2 inet manual
+ vxlan-id 3
vxlan_remoteip 192.168.0.2
vxlan_remoteip 192.168.0.3
----
auto eno1
iface eno1 inet manual
+ mtu 1550
auto vmbr0
iface vmbr0 inet static
auto vxlan2
iface vxlan2 inet manual
+ vxlan-id 2
vxlan_remoteip 192.168.0.1
vxlan_remoteip 192.168.0.3
auto vxlan3
iface vxlan2 inet manual
+ vxlan-id 3
vxlan_remoteip 192.168.0.1
vxlan_remoteip 192.168.0.3
----
auto eno1
iface eno1 inet manual
+ mtu 1550
auto vmbr0
iface vmbr0 inet static
auto vxlan2
iface vxlan2 inet manual
+ vxlan-id 2
vxlan_remoteip 192.168.0.2
vxlan_remoteip 192.168.0.3
auto vxlan3
iface vxlan2 inet manual
+ vxlan-id 3
vxlan_remoteip 192.168.0.2
vxlan_remoteip 192.168.0.3
----
auto eno1
iface eno1 inet manual
+ mtu 1550
auto vmbr0
iface vmbr0 inet static
auto vxlan2
iface vxlan2 inet manual
+ vxlan-id 2
vxlan-local-tunnelip 192.168.0.1
bridge-learning off
bridge-arp-nd-suppress on
auto vxlan3
iface vxlan3 inet manual
+ vxlan-id 3
vxlan-local-tunnelip 192.168.0.1
bridge-learning off
bridge-arp-nd-suppress on
----
auto eno1
iface eno1 inet manual
+ mtu 1550
auto vmbr0
iface vmbr0 inet static
auto vxlan2
iface vxlan2 inet manual
+ vxlan-id 2
vxlan-local-tunnelip 192.168.0.2
bridge-learning off
bridge-arp-nd-suppress on
auto vxlan3
iface vxlan3 inet manual
+ vxlan-id 3
vxlan-local-tunnelip 192.168.0.2
bridge-learning off
bridge-arp-nd-suppress on
----
auto eno1
iface eno1 inet manual
+ mtu 1550
auto vmbr0
iface vmbr0 inet static
auto vxlan2
iface vxlan2 inet manual
+ vxlan-id 2
vxlan-local-tunnelip 192.168.0.3
bridge-learning off
bridge-arp-nd-suppress on
auto vxlan3
iface vxlan3 inet manual
+ vxlan-id 3
vxlan-local-tunnelip 192.168.0.3
bridge-learning off
bridge-arp-nd-suppress on
VXLAN layer3 routing only work with FRR and non-aware bridge.
(vlan aware bridge support is buggy currently).
-
-sysctl.conf tuning
-
-----
-#enable routing
-net.ipv4.ip_forward=1
-net.ipv6.conf.all.forwarding=1
-#disable reverse path filtering
-net.ipv4.conf.default.rp_filter=0
-net.ipv4.conf.all.rp_filter=0
-#allow frr to work with vrf
-net.ipv4.tcp_l3mdev_accept=1
-----
-
asymmetric model
^^^^^^^^^^^^^^^^
image::images/vxlan-l3-asymmetric.svg["vxlan l3 asymmetric",align="center"]
+sysctl.conf tuning
+
+----
+#enable routing
+net.ipv4.ip_forward=1
+net.ipv6.conf.all.forwarding=1
+----
+
* node1
----
auto eno1
iface eno1 inet manual
+ mtu 1550
auto vmbr0
iface vmbr0 inet static
auto vxlan2
iface vxlan2 inet manual
+ vxlan-id 2
vxlan-local-tunnelip 192.168.0.1
bridge-learning off
bridge-arp-nd-suppress on
auto vxlan3
iface vxlan3 inet manual
+ vxlan-id 3
vxlan-local-tunnelip 192.168.0.1
bridge-learning off
bridge-arp-nd-suppress on
----
auto eno1
iface eno1 inet manual
+ mtu 1550
auto vmbr0
iface vmbr0 inet static
auto vxlan2
iface vxlan2 inet manual
+ vxlan-id 2
vxlan-local-tunnelip 192.168.0.2
bridge-learning off
bridge-arp-nd-suppress on
auto vxlan3
iface vxlan3 inet manual
+ vxlan-id 3
vxlan-local-tunnelip 192.168.0.2
bridge-learning off
bridge-arp-nd-suppress on
----
auto eno1
iface eno1 inet manual
+ mtu 1550
auto vmbr0
iface vmbr0 inet static
auto vxlan2
iface vxlan2 inet manual
+ vxlan-id 2
vxlan-local-tunnelip 192.168.0.3
bridge-learning off
bridge-arp-nd-suppress on
auto vxlan3
iface vxlan3 inet manual
+ vxlan-id 3
vxlan-local-tunnelip 192.168.0.3
bridge-learning off
bridge-arp-nd-suppress on
image::images/vxlan-l3-symmetric.svg["vxlan l3 symmetric",align="center"]
+sysctl.conf tuning
+
+----
+#enable routing
+net.ipv4.ip_forward=1
+net.ipv6.conf.all.forwarding=1
+----
* node1
auto eno1
iface eno1 inet manual
+ mtu 1550
auto vmbr0
iface vmbr0 inet static
auto vxlan2
iface vxlan2 inet manual
+ vxlan-id 2
vxlan-local-tunnelip 192.168.0.1
bridge-learning off
bridge-arp-nd-suppress on
auto vxlan3
iface vxlan3 inet manual
+ vxlan-id 3
vxlan-local-tunnelip 192.168.0.1
bridge-learning off
bridge-arp-nd-suppress on
#interconnect vxlan-vfr l3vni
auto vxlan4000
iface vxlan4000 inet manual
+ vxlan-id 4000
vxlan-local-tunnelip 192.168.0.1
bridge-learning off
bridge-arp-nd-suppress on
auto eno1
iface eno1 inet manual
+ mtu 1550
auto vmbr0
iface vmbr0 inet static
auto vxlan2
iface vxlan2 inet manual
+ vxlan-id 2
vxlan-local-tunnelip 192.168.0.2
bridge-learning off
bridge-arp-nd-suppress on
auto vxlan3
iface vxlan3 inet manual
+ vxlan-id 3
vxlan-local-tunnelip 192.168.0.2
bridge-learning off
bridge-arp-nd-suppress on
#interconnect vxlan-vfr l3vni
auto vxlan4000
iface vxlan4000 inet manual
+ vxlan-id 4000
vxlan-local-tunnelip 192.168.0.2
bridge-learning off
bridge-arp-nd-suppress on
auto eno1
iface eno1 inet manual
+ mtu 1550
auto vmbr0
iface vmbr0 inet static
auto vxlan2
iface vxlan2 inet manual
+ vxlan-id 2
vxlan-local-tunnelip 192.168.0.3
bridge-learning off
bridge-arp-nd-suppress on
auto vxlan3
iface vxlan3 inet manual
+ vxlan-id 3
vxlan-local-tunnelip 192.168.0.3
bridge-learning off
bridge-arp-nd-suppress on
#interconnect vxlan-vfr l3vni
auto vxlan4000
iface vxlan4000 inet manual
+ vxlan-id 4000
vxlan-local-tunnelip 192.168.0.3
bridge-learning off
bridge-arp-nd-suppress on
line vty
!
----
+
+VXLAN layer3 routing with anycast gateway + routing to outside with external router
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Routing to outside need the symmetric model.
+
+1 gateway node
+^^^^^^^^^^^^^^
+In this example, we'll use only 1 proxmox node as exit gateway. (node1)
+This node have a simple default gw in the vrf to the external router (no bgp between router and node1)
+and announce this default gw to other proxmox nodes.
+
+
+*node1
+
+----
+auto vrf1
+iface vrf1
+ vrf-table auto
+
+auto eno1
+iface eno1 inet manual
+ mtu 1550
+
+auto vmbr0
+iface vmbr0 inet static
+ address 192.168.0.1
+ netmask 255.255.255.0
+ bridge_ports eno1
+ bridge_stp off
+ bridge_fd 0
+
+auto eno2
+iface eno2
+ address 172.16.0.1
+ netmask 255.255.255.0
+ vrf vrf1
+ post-up ip route add default via 172.16.0.254 dev eno2 vrf vrf1
+ #if you have multiple external routers, you can use ecmp balancing
+ #post-up route add default nexthop via 172.16.0.253 dev eno2 vrf vrf1 nexthop via 172.16.0.254 dev eno2 vrf vrf1
+
+auto vxlan2
+iface vxlan2 inet manual
+ vxlan-id 2
+ vxlan-local-tunnelip 192.168.0.1
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ bridge-unicast-flood off
+ bridge-multicast-flood off
+
+auto vmbr2
+iface vmbr2 inet static
+ bridge_ports vxlan2
+ bridge_stp off
+ bridge_fd 0
+ address 10.0.2.254
+ netmask 255.255.255.0
+ hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
+ vrf vrf1
+
+auto vxlan3
+iface vxlan3 inet manual
+ vxlan-id 3
+ vxlan-local-tunnelip 192.168.0.1
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ bridge-unicast-flood off
+ bridge-multicast-flood off
+
+auto vmbr3
+iface vmbr3 inet static
+ bridge_ports vxlan3
+ bridge_stp off
+ bridge_fd 0
+ address 10.0.3.254
+ netmask 255.255.255.0
+ hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
+ vrf vrf1
+
+#interconnect vxlan-vfr l3vni
+auto vxlan4000
+iface vxlan4000 inet manual
+ vxlan-id 4000
+ vxlan-local-tunnelip 192.168.0.1
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ bridge-unicast-flood off
+ bridge-multicast-flood off
+
+auto vmbr4000
+iface vmbr4000 inet manual
+ bridge_ports vxlan4000
+ bridge_stp off
+ bridge_fd 0
+ hwaddress 44:39:39:FF:40:90 #must be different on each node
+ vrf vrf1
+----
+
+
+frr.conf
+
+----
+vrf vrf1
+ vni 4000
+!
+router bgp 1234
+ bgp router-id 192.168.0.1
+ no bgp default ipv4-unicast
+ coalesce-time 1000
+ neighbor 192.168.0.2 remote-as 1234
+ neighbor 192.168.0.3 remote-as 1234
+ !
+ address-family l2vpn evpn
+ neighbor 192.168.0.2 activate
+ neighbor 192.168.0.3 activate
+ advertise-all-vni
+ exit-address-family
+!
+router bgp 1234 vrf vrf1
+!
+ bgp router-id 172.16.0.1
+ !
+ address-family ipv4 unicast
+ redistribute connected
+ redistribute kernel !announce your default gw to all nodes
+ exit-address-family
+ !
+ address-family l2vpn evpn
+ advertise ipv4 unicast
+ exit-address-family
+!
+line vty
+!
+----
+
+
+* node2
+
+----
+auto vrf1
+iface vrf1
+ vrf-table auto
+
+auto eno1
+iface eno1 inet manual
+ mtu 1550
+
+auto vmbr0
+iface vmbr0 inet static
+ address 192.168.0.2
+ netmask 255.255.255.0
+ bridge_ports eno1
+ bridge_stp off
+ bridge_fd 0
+
+auto vxlan2
+iface vxlan2 inet manual
+ vxlan-id 2
+ vxlan-local-tunnelip 192.168.0.2
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ bridge-unicast-flood off
+ bridge-multicast-flood off
+
+auto vmbr2
+iface vmbr2 inet static
+ bridge_ports vxlan2
+ bridge_stp off
+ bridge_fd 0
+ address 10.0.2.254
+ netmask 255.255.255.0
+ hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
+ vrf vrf1
+
+auto vxlan3
+iface vxlan3 inet manual
+ vxlan-id 3
+ vxlan-local-tunnelip 192.168.0.2
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ bridge-unicast-flood off
+ bridge-multicast-flood off
+
+auto vmbr3
+iface vmbr3 inet static
+ bridge_ports vxlan3
+ bridge_stp off
+ bridge_fd 0
+ address 10.0.3.254
+ netmask 255.255.255.0
+ hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
+ vrf vrf1
+
+#interconnect vxlan-vfr l3vni
+auto vxlan4000
+iface vxlan4000 inet manual
+ vxlan-id 4000
+ vxlan-local-tunnelip 192.168.0.2
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ bridge-unicast-flood off
+ bridge-multicast-flood off
+
+
+auto vmbr4000
+iface vmbr4000 inet manual
+ bridge_ports vxlan4000
+ bridge_stp off
+ bridge_fd 0
+ hwaddress 44:39:39:FF:40:91 #must be different on each node
+ vrf vrf1
+----
+
+
+frr.conf
+
+----
+vrf vrf1
+ vni 4000
+!
+router bgp 1234
+ bgp router-id 192.168.0.2
+ no bgp default ipv4-unicast
+ coalesce-time 1000
+ neighbor 192.168.0.1 remote-as 1234
+ neighbor 192.168.0.3 remote-as 1234
+ !
+ address-family l2vpn evpn
+ neighbor 192.168.0.1 activate
+ neighbor 192.168.0.3 activate
+ advertise-all-vni
+ exit-address-family
+!
+router bgp 1234 vrf vrf1
+!
+ bgp router-id 192.168.0.2
+ !
+ address-family ipv4 unicast
+ redistribute connected
+ exit-address-family
+ !
+ address-family l2vpn evpn
+ advertise ipv4 unicast
+ exit-address-family
+!
+line vty
+!
+----
+
+
+* node3
+
+----
+auto vrf1
+iface vrf1
+ vrf-table auto
+
+auto eno1
+iface eno1 inet manual
+ mtu 1550
+
+auto vmbr0
+iface vmbr0 inet static
+ address 192.168.0.3
+ netmask 255.255.255.0
+ bridge_ports eno1
+ bridge_stp off
+ bridge_fd 0
+
+auto vxlan2
+iface vxlan2 inet manual
+ vxlan-id 2
+ vxlan-local-tunnelip 192.168.0.3
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ bridge-unicast-flood off
+ bridge-multicast-flood off
+
+auto vmbr2
+iface vmbr2 inet static
+ bridge_ports vxlan2
+ bridge_stp off
+ bridge_fd 0
+ address 10.0.2.254
+ netmask 255.255.255.0
+ hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
+ vrf vrf1
+
+auto vxlan3
+iface vxlan3 inet manual
+ vxlan-id 3
+ vxlan-local-tunnelip 192.168.0.3
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ bridge-unicast-flood off
+ bridge-multicast-flood off
+
+auto vmbr3
+iface vmbr3 inet static
+ bridge_ports vxlan3
+ bridge_stp off
+ bridge_fd 0
+ address 10.0.3.254
+ netmask 255.255.255.0
+ hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
+ vrf vrf1
+
+#interconnect vxlan-vfr l3vni
+auto vxlan4000
+iface vxlan4000 inet manual
+ vxlan-id 4000
+ vxlan-local-tunnelip 192.168.0.3
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ bridge-unicast-flood off
+ bridge-multicast-flood off
+
+
+auto vmbr4000
+iface vmbr4000 inet manual
+ bridge_ports vxlan4000
+ bridge_stp off
+ bridge_fd 0
+ hwaddress 44:39:39:FF:40:92 #must be different on each node
+ vrf vrf1
+----
+
+
+frr.conf
+
+----
+vrf vrf1
+ vni 4000
+!
+router bgp 1234
+ bgp router-id 192.168.0.3
+ no bgp default ipv4-unicast
+ coalesce-time 1000
+ neighbor 192.168.0.1 remote-as 1234
+ neighbor 192.168.0.2 remote-as 1234
+ !
+ address-family l2vpn evpn
+ neighbor 192.168.0.1 activate
+ neighbor 192.168.0.2 activate
+ advertise-all-vni
+ exit-address-family
+!
+router bgp 1234 vrf vrf1
+!
+ bgp router-id 192.168.0.3
+ !
+ address-family ipv4 unicast
+ redistribute connected
+ exit-address-family
+ !
+ address-family l2vpn evpn
+ advertise ipv4 unicast
+ exit-address-family
+!
+line vty
+!
+----
+
+multiple gateway nodes
+^^^^^^^^^^^^^^^^^^^^^^
+In this example, all nodes will be used as exit gateway. (But you can use only 2 nodes if you want)
+All nodes have a simple default gw in the vrf to the external router (no bgp between router and node1)
+and announce this default gw.
+The external router have ecmp routes to all proxmox nodes.(balancing).
+If the router send the packet to a wrong node (vm is not on this node), this node will route through
+vxlan the packet to final destination.
+
+*node1
+
+----
+auto vrf1
+iface vrf1
+ vrf-table auto
+
+auto eno1
+iface eno1 inet manual
+ mtu 1550
+
+auto vmbr0
+iface vmbr0 inet static
+ address 192.168.0.1
+ netmask 255.255.255.0
+ bridge_ports eno1
+ bridge_stp off
+ bridge_fd 0
+
+auto eno2
+iface eno2
+ address 172.16.0.1
+ netmask 255.255.255.0
+ vrf vrf1
+ mtu 1550
+ post-up ip route add default via 172.16.0.254 dev eno2 vrf vrf1
+ #if you have multiple external routers, you can use ecmp balancing
+ #post-up route add default nexthop via 172.16.0.253 dev eno2 vrf vrf1 nexthop via 172.16.0.254 dev eno2 vrf vrf1
+
+auto vxlan2
+iface vxlan2 inet manual
+ vxlan-id 2
+ vxlan-local-tunnelip 192.168.0.1
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ bridge-unicast-flood off
+ bridge-multicast-flood off
+
+auto vmbr2
+iface vmbr2 inet static
+ bridge_ports vxlan2
+ bridge_stp off
+ bridge_fd 0
+ address 10.0.2.254
+ netmask 255.255.255.0
+ hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
+ vrf vrf1
+
+auto vxlan3
+iface vxlan3 inet manual
+ vxlan-id 3
+ vxlan-local-tunnelip 192.168.0.1
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ bridge-unicast-flood off
+ bridge-multicast-flood off
+
+auto vmbr3
+iface vmbr3 inet static
+ bridge_ports vxlan3
+ bridge_stp off
+ bridge_fd 0
+ address 10.0.3.254
+ netmask 255.255.255.0
+ hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
+ vrf vrf1
+
+#interconnect vxlan-vfr l3vni
+auto vxlan4000
+iface vxlan4000 inet manual
+ vxlan-id 4000
+ vxlan-local-tunnelip 192.168.0.1
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ bridge-unicast-flood off
+ bridge-multicast-flood off
+
+auto vmbr4000
+iface vmbr4000 inet manual
+ bridge_ports vxlan4000
+ bridge_stp off
+ bridge_fd 0
+ hwaddress 44:39:39:FF:40:90 #must be different on each node
+ vrf vrf1
+----
+
+
+frr.conf
+
+----
+vrf vrf1
+ vni 4000
+!
+router bgp 1234
+ bgp router-id 192.168.0.1
+ no bgp default ipv4-unicast
+ coalesce-time 1000
+ neighbor 192.168.0.2 remote-as 1234
+ neighbor 192.168.0.3 remote-as 1234
+ !
+ address-family l2vpn evpn
+ neighbor 192.168.0.2 activate
+ neighbor 192.168.0.3 activate
+ advertise-all-vni
+ exit-address-family
+!
+router bgp 1234 vrf vrf1
+!
+ bgp router-id 172.16.0.1
+ !
+ address-family ipv4 unicast
+ redistribute connected
+ redistribute kernel !announce your default gw to all nodes
+ exit-address-family
+ !
+ address-family l2vpn evpn
+ advertise ipv4 unicast
+ exit-address-family
+!
+line vty
+!
+----
+
+
+* node2
+
+----
+auto vrf1
+iface vrf1
+ vrf-table auto
+
+auto eno1
+iface eno1 inet manual
+ mtu 1550
+
+auto vmbr0
+iface vmbr0 inet static
+ address 192.168.0.2
+ netmask 255.255.255.0
+ bridge_ports eno1
+ bridge_stp off
+ bridge_fd 0
+
+auto eno2
+iface eno2
+ address 172.16.0.3
+ netmask 255.255.255.0
+ vrf vrf1
+ mtu 1550
+ post-up ip route add default via 172.16.0.254 dev eno2 vrf vrf1
+ #if you have multiple external routers, you can use ecmp balancing
+ #post-up route add default nexthop via 172.16.0.253 dev eno2 vrf vrf1 nexthop via 172.16.0.254 dev eno2 vrf vrf1
+
+auto vxlan2
+iface vxlan2 inet manual
+ vxlan-id 2
+ vxlan-local-tunnelip 192.168.0.2
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ bridge-unicast-flood off
+ bridge-multicast-flood off
+
+auto vmbr2
+iface vmbr2 inet static
+ bridge_ports vxlan2
+ bridge_stp off
+ bridge_fd 0
+ address 10.0.2.254
+ netmask 255.255.255.0
+ hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
+ vrf vrf1
+
+auto vxlan3
+iface vxlan3 inet manual
+ vxlan-id 3
+ vxlan-local-tunnelip 192.168.0.2
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ bridge-unicast-flood off
+ bridge-multicast-flood off
+
+auto vmbr3
+iface vmbr3 inet static
+ bridge_ports vxlan3
+ bridge_stp off
+ bridge_fd 0
+ address 10.0.3.254
+ netmask 255.255.255.0
+ hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
+ vrf vrf1
+
+#interconnect vxlan-vfr l3vni
+auto vxlan4000
+iface vxlan4000 inet manual
+ vxlan-id 4000
+ vxlan-local-tunnelip 192.168.0.2
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ bridge-unicast-flood off
+ bridge-multicast-flood off
+
+
+auto vmbr4000
+iface vmbr4000 inet manual
+ bridge_ports vxlan4000
+ bridge_stp off
+ bridge_fd 0
+ hwaddress 44:39:39:FF:40:91 #must be different on each node
+ vrf vrf1
+----
+
+
+frr.conf
+
+----
+vrf vrf1
+ vni 4000
+!
+router bgp 1234
+ bgp router-id 192.168.0.2
+ no bgp default ipv4-unicast
+ coalesce-time 1000
+ neighbor 192.168.0.1 remote-as 1234
+ neighbor 192.168.0.3 remote-as 1234
+ !
+ address-family l2vpn evpn
+ neighbor 192.168.0.1 activate
+ neighbor 192.168.0.3 activate
+ advertise-all-vni
+ exit-address-family
+!
+router bgp 1234 vrf vrf1
+!
+ bgp router-id 172.16.0.2
+ !
+ address-family ipv4 unicast
+ redistribute connected
+ redistribute kernel !announce your default gw to all nodes
+ exit-address-family
+ !
+ address-family l2vpn evpn
+ advertise ipv4 unicast
+ exit-address-family
+!
+line vty
+!
+----
+
+
+* node3
+
+----
+auto vrf1
+iface vrf1
+ vrf-table auto
+
+auto eno1
+iface eno1 inet manual
+ mtu 1550
+
+auto vmbr0
+iface vmbr0 inet static
+ address 192.168.0.3
+ netmask 255.255.255.0
+ bridge_ports eno1
+ bridge_stp off
+ bridge_fd 0
+
+auto eno2
+iface eno2
+ address 172.16.0.3
+ netmask 255.255.255.0
+ vrf vrf1
+ mtu 1550
+ post-up ip route add default via 172.16.0.254 dev eno2 vrf vrf1
+ #if you have multiple external routers, you can use ecmp balancing
+ #post-up route add default nexthop via 172.16.0.253 dev eno2 vrf vrf1 nexthop via 172.16.0.254 dev eno2 vrf vrf1
+
+auto vxlan2
+iface vxlan2 inet manual
+ vxlan-id 2
+ vxlan-local-tunnelip 192.168.0.3
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ bridge-unicast-flood off
+ bridge-multicast-flood off
+
+auto vmbr2
+iface vmbr2 inet static
+ bridge_ports vxlan2
+ bridge_stp off
+ bridge_fd 0
+ address 10.0.2.254
+ netmask 255.255.255.0
+ hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
+ vrf vrf1
+
+auto vxlan3
+iface vxlan3 inet manual
+ vxlan-id 3
+ vxlan-local-tunnelip 192.168.0.3
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ bridge-unicast-flood off
+ bridge-multicast-flood off
+
+auto vmbr3
+iface vmbr3 inet static
+ bridge_ports vxlan3
+ bridge_stp off
+ bridge_fd 0
+ address 10.0.3.254
+ netmask 255.255.255.0
+ hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
+ vrf vrf1
+
+#interconnect vxlan-vfr l3vni
+auto vxlan4000
+iface vxlan4000 inet manual
+ vxlan-id 4000
+ vxlan-local-tunnelip 192.168.0.3
+ bridge-learning off
+ bridge-arp-nd-suppress on
+ bridge-unicast-flood off
+ bridge-multicast-flood off
+
+
+auto vmbr4000
+iface vmbr4000 inet manual
+ bridge_ports vxlan4000
+ bridge_stp off
+ bridge_fd 0
+ hwaddress 44:39:39:FF:40:92 #must be different on each node
+ vrf vrf1
+----
+
+
+frr.conf
+
+----
+vrf vrf1
+ vni 4000
+!
+router bgp 1234
+ bgp router-id 192.168.0.3
+ no bgp default ipv4-unicast
+ coalesce-time 1000
+ neighbor 192.168.0.1 remote-as 1234
+ neighbor 192.168.0.2 remote-as 1234
+ !
+ address-family l2vpn evpn
+ neighbor 192.168.0.1 activate
+ neighbor 192.168.0.2 activate
+ advertise-all-vni
+ exit-address-family
+!
+router bgp 1234 vrf vrf1
+!
+ bgp router-id 172.16.0.3
+ !
+ address-family ipv4 unicast
+ redistribute connected
+ redistribute kernel !announce your default gw to all nodes
+ exit-address-family
+ !
+ address-family l2vpn evpn
+ advertise ipv4 unicast
+ exit-address-family
+!
+line vty
+!
+----
+
+Note
+^^^^
+
+If your external router don't support ecmp to reach multiple proxmox nodes,
+you can setup an HA floating vip on proxmox nodes with vrrp
+
+I this example, we will setup an floating 172.16.0.10 ip on node1 and node2.
+Node1 is the primary and failover to node2 in case of failure.
+
+
+* node1
+
+----
+auto eno2
+iface eno2
+ address 172.16.0.1
+ netmask 255.255.255.0
+ vrf vrf1
+ mtu 1550
+ post-up ip route add default via 172.16.0.254 dev eno2 vrf vrf1
+ vrrp-id 1
+ vrrp-priority 1
+ vrrp-virtual-ip 172.16.0.10
+----
+
+* node2
+
+----
+auto eno2
+iface eno2
+ address 172.16.0.2
+ netmask 255.255.255.0
+ mtu 1550
+ vrf vrf1
+ post-up ip route add default via 172.16.0.254 dev eno2 vrf vrf1
+ vrrp-id 1
+ vrrp-priority 2
+ vrrp-virtual-ip 172.16.0.10
+----
+
+
projects / pve-docs.git / blobdiff