4 This is currently not included, because
5 - it requires ifupdown2
6 - routing needs more documentation
11 VXLAN layer2 with vlan unware linux bridges
12 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
14 VXLAN is an overlay network to carry Ethernet traffic over an existing IP network
15 while accommodating a very large number of tenants. It is defined in RFC 7348.
16 Each overlay network is known as a VXLAN Segment and identified by a unique
17 24-bit segment ID called a VXLAN Network Identifier (VNI).
19 VXLAN encapsulation add 50bytes overhead, so you need to increase mtu on your host
20 physical interfaces to 1550 at minimum. (or decrease mtu inside your vms to 1450)
22 For BUM traffic (broadcast / unknown unicast traffic, multicast),
23 we have 3 differents vxlan setup modes : multicast, unicast, bgp-evpn
25 image::images/vxlan-l2-vlanunaware.svg["vxlan l2 bridge vlan unaware",align="center"]
30 This scenario relies in head end replication, meaning that end host in case
31 of not having any entry for the destination MAC address will send out an ARP
32 to other devices / VTEPs in the VXLAN network.
33 This is done by sending the request to the VXLAN multicast group,
34 remote VTEPs will get the packet and answer accordingly direct to the originating VTEP.
41 iface eno1 inet manual
45 iface vmbr0 inet static
53 iface vxlan2 inet manual
55 vxlan-svcnodeip 225.20.1.1
59 iface vmbr2 inet manual
65 iface vxlan3 inet manual
67 vxlan-svcnodeip 225.20.1.1
71 iface vmbr3 inet manual
82 iface eno1 inet manual
86 iface vmbr0 inet static
94 iface vxlan2 inet manual
96 vxlan-svcnodeip 225.20.1.1
100 iface vmbr2 inet manual
107 iface vxlan3 inet manual
109 vxlan-svcnodeip 225.20.1.1
113 iface vmbr3 inet manual
124 iface eno1 inet manual
128 iface vmbr0 inet static
130 netmask 255.255.255.0
136 iface vxlan2 inet manual
138 vxlan-svcnodeip 225.20.1.1
142 iface vmbr2 inet manual
149 iface vxlan3 inet manual
151 vxlan-svcnodeip 225.20.1.1
155 iface vmbr3 inet manual
165 We can replace multicast by head-end replication of BUM frames to a statically configured lists of remote VTEPs.
166 The VXLAN is defined without a remote multicast group.
167 Instead, all the remote VTEPs are associated with the all-zero address:
168 a BUM frame will be duplicated to all these destinations.
169 The VXLAN device will still learn remote addresses automatically using source-address learning.
175 iface eno1 inet manual
179 iface vmbr0 inet static
181 netmask 255.255.255.0
188 iface vxlan2 inet manual
190 vxlan_remoteip 192.168.0.2
191 vxlan_remoteip 192.168.0.3
195 iface vmbr2 inet manual
202 iface vxlan2 inet manual
204 vxlan_remoteip 192.168.0.2
205 vxlan_remoteip 192.168.0.3
209 iface vmbr3 inet manual
220 iface eno1 inet manual
224 iface vmbr0 inet static
226 netmask 255.255.255.0
232 iface vxlan2 inet manual
234 vxlan_remoteip 192.168.0.1
235 vxlan_remoteip 192.168.0.3
240 iface vmbr2 inet manual
246 iface vxlan2 inet manual
248 vxlan_remoteip 192.168.0.1
249 vxlan_remoteip 192.168.0.3
253 iface vmbr3 inet manual
264 iface eno1 inet manual
268 iface vmbr0 inet static
270 netmask 255.255.255.0
276 iface vxlan2 inet manual
278 vxlan_remoteip 192.168.0.2
279 vxlan_remoteip 192.168.0.3
284 iface vmbr2 inet manual
290 iface vxlan2 inet manual
292 vxlan_remoteip 192.168.0.2
293 vxlan_remoteip 192.168.0.3
297 iface vmbr3 inet manual
307 VTEPs use control plane learning/distribution via BGP for remote MAC addresses instead of data plane learning.
308 VTEPs have the ability to suppress ARP flooding over VXLAN tunnels.
310 The control plane used here is FRR, a bgp routing software.
311 Each node in the proxmox cluster peer with each others nodes.
312 For bigger networks, or multiple proxmox clusters,
313 it's possible to use external bgp route reflector servers.
319 iface eno1 inet manual
323 iface vmbr0 inet static
325 netmask 255.255.255.0
331 iface vxlan2 inet manual
333 vxlan-local-tunnelip 192.168.0.1
335 bridge-arp-nd-suppress on
336 bridge-unicast-flood off
337 bridge-multicast-flood off
341 iface vmbr2 inet manual
348 iface vxlan3 inet manual
350 vxlan-local-tunnelip 192.168.0.1
352 bridge-arp-nd-suppress on
353 bridge-unicast-flood off
354 bridge-multicast-flood off
358 iface vmbr3 inet manual
369 no bgp default ipv4-unicast
370 no bgp default ipv6-unicast
372 neighbor 192.168.0.2 remote-as 1234
373 neighbor 192.168.0.3 remote-as 1234
375 address-family l2vpn evpn
376 neighbor 192.168.0.2 activate
377 neighbor 192.168.0.3 activate
390 iface eno1 inet manual
394 iface vmbr0 inet static
396 netmask 255.255.255.0
402 iface vxlan2 inet manual
404 vxlan-local-tunnelip 192.168.0.2
406 bridge-arp-nd-suppress on
407 bridge-unicast-flood off
408 bridge-multicast-flood off
412 iface vmbr2 inet manual
418 iface vxlan3 inet manual
420 vxlan-local-tunnelip 192.168.0.2
422 bridge-arp-nd-suppress on
423 bridge-unicast-flood off
424 bridge-multicast-flood off
428 iface vmbr3 inet manual
439 no bgp default ipv4-unicast
440 no bgp default ipv6-unicast
442 neighbor 192.168.0.1 remote-as 1234
443 neighbor 192.168.0.3 remote-as 1234
445 address-family l2vpn evpn
446 neighbor 192.168.0.1 activate
447 neighbor 192.168.0.3 activate
460 iface eno1 inet manual
464 iface vmbr0 inet static
466 netmask 255.255.255.0
472 iface vxlan2 inet manual
474 vxlan-local-tunnelip 192.168.0.3
476 bridge-arp-nd-suppress on
477 bridge-unicast-flood off
478 bridge-multicast-flood off
482 iface vmbr2 inet manual
488 iface vxlan3 inet manual
490 vxlan-local-tunnelip 192.168.0.3
492 bridge-arp-nd-suppress on
493 bridge-unicast-flood off
494 bridge-multicast-flood off
498 iface vmbr3 inet manual
510 no bgp default ipv4-unicast
511 no bgp default ipv6-unicast
513 neighbor 192.168.0.1 remote-as 1234
514 neighbor 192.168.0.2 remote-as 1234
516 address-family l2vpn evpn
517 neighbor 192.168.0.1 activate
518 neighbor 192.168.0.2 activate
526 VXLAN layer3 routing with anycast gateway
527 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
529 With this need, each vmbr bridge will be the gateway for the vm.
530 Same vmbr on different node, will have same ip address and same mac address,
531 to have working vm live migration and no network disruption.
533 VXLAN layer3 routing only work with FRR and non-aware bridge.
534 (vlan aware bridge support is buggy currently).
539 This is the simplest mode. To get it work, all vxlan need to be defined on all nodes.
541 The asymmetric model allows routing and bridging on the VXLAN tunnel ingress,
542 but only bridging on the egress.
543 This results in bi-directional VXLAN traffic traveling on different VNIs
544 in each direction (always the destination VNI) across the routed infrastructure.
546 image::images/vxlan-l3-asymmetric.svg["vxlan l3 asymmetric",align="center"]
552 iface eno1 inet manual
556 iface vmbr0 inet static
558 netmask 255.255.255.0
564 iface vxlan2 inet manual
566 vxlan-local-tunnelip 192.168.0.1
568 bridge-arp-nd-suppress on
569 bridge-unicast-flood off
570 bridge-multicast-flood off
574 iface vmbr2 inet static
576 netmask 255.255.255.0
577 hwaddress 44:39:39:FF:40:94
586 iface vxlan3 inet manual
588 vxlan-local-tunnelip 192.168.0.1
590 bridge-arp-nd-suppress on
591 bridge-unicast-flood off
592 bridge-multicast-flood off
596 iface vmbr3 inet static
598 netmask 255.255.255.0
599 hwaddress 44:39:39:FF:40:94
613 bgp router-id 192.168.0.1
614 no bgp default ipv4-unicast
615 no bgp default ipv6-unicast
617 neighbor 192.168.0.2 remote-as 1234
618 neighbor 192.168.0.3 remote-as 1234
620 address-family l2vpn evpn
621 neighbor 192.168.0.2 activate
622 neighbor 192.168.0.3 activate
635 iface eno1 inet manual
639 iface vmbr0 inet static
641 netmask 255.255.255.0
647 iface vxlan2 inet manual
649 vxlan-local-tunnelip 192.168.0.2
651 bridge-arp-nd-suppress on
652 bridge-unicast-flood off
653 bridge-multicast-flood off
657 iface vmbr2 inet static
659 netmask 255.255.255.0
660 hwaddress 44:39:39:FF:40:94
670 iface vxlan3 inet manual
672 vxlan-local-tunnelip 192.168.0.2
674 bridge-arp-nd-suppress on
675 bridge-unicast-flood off
676 bridge-multicast-flood off
680 iface vmbr3 inet static
682 netmask 255.255.255.0
683 hwaddress 44:39:39:FF:40:94
697 bgp router-id 192.168.0.2
698 no bgp default ipv4-unicast
699 no bgp default ipv6-unicast
701 neighbor 192.168.0.1 remote-as 1234
702 neighbor 192.168.0.3 remote-as 1234
704 address-family l2vpn evpn
705 neighbor 192.168.0.1 activate
706 neighbor 192.168.0.3 activate
719 iface eno1 inet manual
723 iface vmbr0 inet static
725 netmask 255.255.255.0
731 iface vxlan2 inet manual
733 vxlan-local-tunnelip 192.168.0.3
735 bridge-arp-nd-suppress on
736 bridge-unicast-flood off
737 bridge-multicast-flood off
741 iface vmbr2 inet static
743 netmask 255.255.255.0
744 hwaddress 44:39:39:FF:40:94
753 iface vxlan3 inet manual
755 vxlan-local-tunnelip 192.168.0.3
757 bridge-arp-nd-suppress on
758 bridge-unicast-flood off
759 bridge-multicast-flood off
762 iface vmbr3 inet static
764 netmask 255.255.255.0
765 hwaddress 44:39:39:FF:40:94
779 bgp router-id 192.168.0.3
780 no bgp default ipv4-unicast
781 no bgp default ipv6-unicast
783 neighbor 192.168.0.1 remote-as 1234
784 neighbor 192.168.0.2 remote-as 1234
786 address-family l2vpn evpn
787 neighbor 192.168.0.1 activate
788 neighbor 192.168.0.2 activate
800 With this model, you don't need to have all vxlan on all nodes.
801 This model will also be needed to route traffic to an external router.
803 The symmetric model routes and bridges on both the ingress and the egress leafs.
804 This results in bi-directional traffic being able to travel on the same VNI, hence the symmetric name.
805 However, a new specialty transit VNI is used for all routed VXLAN traffic, called the L3VNI.
806 All traffic that needs to be routed will be routed onto the L3VNI, tunneled across the layer 3 Infrastructure,
807 routed off the L3VNI to the appropriate VLAN and ultimately bridged to the destination.
809 A vrf is needed for the L3VNI, so all vmbr bridge need to be in the vrf if they want to be able to reach each others.
811 image::images/vxlan-l3-symmetric.svg["vxlan l3 symmetric",align="center"]
821 iface eno1 inet manual
825 iface vmbr0 inet static
827 netmask 255.255.255.0
833 iface vxlan2 inet manual
835 vxlan-local-tunnelip 192.168.0.1
837 bridge-arp-nd-suppress on
838 bridge-unicast-flood off
839 bridge-multicast-flood off
842 iface vmbr2 inet static
847 netmask 255.255.255.0
848 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
855 iface vxlan3 inet manual
857 vxlan-local-tunnelip 192.168.0.1
859 bridge-arp-nd-suppress on
860 bridge-unicast-flood off
861 bridge-multicast-flood off
864 iface vmbr3 inet static
869 netmask 255.255.255.0
870 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
876 #interconnect vxlan-vfr l3vni
878 iface vxlan4000 inet manual
880 vxlan-local-tunnelip 192.168.0.1
882 bridge-arp-nd-suppress on
883 bridge-unicast-flood off
884 bridge-multicast-flood off
888 iface vmbr4000 inet manual
889 bridge_ports vxlan4000
903 bgp router-id 192.168.0.1
904 no bgp default ipv4-unicast
905 no bgp default ipv6-unicast
907 neighbor 192.168.0.2 remote-as 1234
908 neighbor 192.168.0.3 remote-as 1234
910 address-family l2vpn evpn
911 neighbor 192.168.0.2 activate
912 neighbor 192.168.0.3 activate
929 iface eno1 inet manual
933 iface vmbr0 inet static
935 netmask 255.255.255.0
941 iface vxlan2 inet manual
943 vxlan-local-tunnelip 192.168.0.2
945 bridge-arp-nd-suppress on
946 bridge-unicast-flood off
947 bridge-multicast-flood off
950 iface vmbr2 inet static
955 netmask 255.255.255.0
956 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
963 iface vxlan3 inet manual
965 vxlan-local-tunnelip 192.168.0.2
967 bridge-arp-nd-suppress on
968 bridge-unicast-flood off
969 bridge-multicast-flood off
972 iface vmbr3 inet static
977 netmask 255.255.255.0
978 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
984 #interconnect vxlan-vfr l3vni
986 iface vxlan4000 inet manual
988 vxlan-local-tunnelip 192.168.0.2
990 bridge-arp-nd-suppress on
991 bridge-unicast-flood off
992 bridge-multicast-flood off
996 iface vmbr4000 inet manual
997 bridge_ports vxlan4000
1012 bgp router-id 192.168.0.2
1013 no bgp default ipv4-unicast
1014 no bgp default ipv6-unicast
1016 neighbor 192.168.0.1 remote-as 1234
1017 neighbor 192.168.0.3 remote-as 1234
1019 address-family l2vpn evpn
1020 neighbor 192.168.0.1 activate
1021 neighbor 192.168.0.3 activate
1038 iface eno1 inet manual
1042 iface vmbr0 inet static
1044 netmask 255.255.255.0
1050 iface vxlan2 inet manual
1052 vxlan-local-tunnelip 192.168.0.3
1054 bridge-arp-nd-suppress on
1055 bridge-unicast-flood off
1056 bridge-multicast-flood off
1059 iface vmbr2 inet static
1064 netmask 255.255.255.0
1065 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
1072 iface vxlan3 inet manual
1074 vxlan-local-tunnelip 192.168.0.3
1076 bridge-arp-nd-suppress on
1077 bridge-unicast-flood off
1078 bridge-multicast-flood off
1081 iface vmbr3 inet static
1086 netmask 255.255.255.0
1087 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
1093 #interconnect vxlan-vfr l3vni
1095 iface vxlan4000 inet manual
1097 vxlan-local-tunnelip 192.168.0.3
1099 bridge-arp-nd-suppress on
1100 bridge-unicast-flood off
1101 bridge-multicast-flood off
1105 iface vmbr4000 inet manual
1106 bridge_ports vxlan4000
1121 bgp router-id 192.168.0.3
1122 no bgp default ipv4-unicast
1123 no bgp default ipv6-unicast
1125 neighbor 192.168.0.1 remote-as 1234
1126 neighbor 192.168.0.2 remote-as 1234
1128 address-family l2vpn evpn
1129 neighbor 192.168.0.1 activate
1130 neighbor 192.168.0.2 activate
1138 VXLAN layer3 routing with anycast gateway + routing to outside with external router
1139 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1140 Routing to outside need the symmetric model.
1144 In this example, we'll use only 1 proxmox node as exit gateway. (node1)
1145 This node announce the default gw in vrf1 (default originate) and forward to his own default gateway (192.168.0.254) (no bgp between router and node1)
1156 iface eno1 inet manual
1160 iface vmbr0 inet static
1162 netmask 255.255.255.0
1163 gateway 192.168.0.254
1171 iface vxlan2 inet manual
1173 vxlan-local-tunnelip 192.168.0.1
1175 bridge-arp-nd-suppress on
1176 bridge-unicast-flood off
1177 bridge-multicast-flood off
1180 iface vmbr2 inet static
1185 netmask 255.255.255.0
1186 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
1193 iface vxlan3 inet manual
1195 vxlan-local-tunnelip 192.168.0.1
1197 bridge-arp-nd-suppress on
1198 bridge-unicast-flood off
1199 bridge-multicast-flood off
1202 iface vmbr3 inet static
1207 netmask 255.255.255.0
1208 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
1214 #interconnect vxlan-vfr l3vni
1216 iface vxlan4000 inet manual
1218 vxlan-local-tunnelip 192.168.0.1
1220 bridge-arp-nd-suppress on
1221 bridge-unicast-flood off
1222 bridge-multicast-flood off
1225 iface vmbr4000 inet manual
1226 bridge_ports vxlan4000
1241 bgp router-id 192.168.0.1
1242 no bgp default ipv4-unicast
1243 no bgp default ipv6-unicast
1245 neighbor 192.168.0.2 remote-as 1234
1246 neighbor 192.168.0.3 remote-as 1234
1248 address-family ipv4 unicast
1252 address-family ipv6 unicast
1256 address-family l2vpn evpn
1257 neighbor 192.168.0.2 activate
1258 neighbor 192.168.0.3 activate
1262 router bgp 1234 vrf vrf1
1264 address-family ipv4 unicast
1265 redistribute connected
1268 address-family ipv6 unicast
1269 redistribute connected
1272 address-family l2vpn evpn
1273 default-originate ipv4
1274 default-originate ipv6
1290 iface eno1 inet manual
1294 iface vmbr0 inet static
1296 netmask 255.255.255.0
1302 iface vxlan2 inet manual
1304 vxlan-local-tunnelip 192.168.0.2
1306 bridge-arp-nd-suppress on
1307 bridge-unicast-flood off
1308 bridge-multicast-flood off
1311 iface vmbr2 inet static
1316 netmask 255.255.255.0
1317 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
1324 iface vxlan3 inet manual
1326 vxlan-local-tunnelip 192.168.0.2
1328 bridge-arp-nd-suppress on
1329 bridge-unicast-flood off
1330 bridge-multicast-flood off
1333 iface vmbr3 inet static
1338 netmask 255.255.255.0
1339 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
1345 #interconnect vxlan-vfr l3vni
1347 iface vxlan4000 inet manual
1349 vxlan-local-tunnelip 192.168.0.2
1351 bridge-arp-nd-suppress on
1352 bridge-unicast-flood off
1353 bridge-multicast-flood off
1357 iface vmbr4000 inet manual
1358 bridge_ports vxlan4000
1373 bgp router-id 192.168.0.2
1374 no bgp default ipv4-unicast
1375 no bgp default ipv6-unicast
1377 neighbor 192.168.0.1 remote-as 1234
1378 neighbor 192.168.0.3 remote-as 1234
1380 address-family l2vpn evpn
1381 neighbor 192.168.0.1 activate
1382 neighbor 192.168.0.3 activate
1399 iface eno1 inet manual
1403 iface vmbr0 inet static
1405 netmask 255.255.255.0
1411 iface vxlan2 inet manual
1413 vxlan-local-tunnelip 192.168.0.3
1415 bridge-arp-nd-suppress on
1416 bridge-unicast-flood off
1417 bridge-multicast-flood off
1420 iface vmbr2 inet static
1425 netmask 255.255.255.0
1426 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
1433 iface vxlan3 inet manual
1435 vxlan-local-tunnelip 192.168.0.3
1437 bridge-arp-nd-suppress on
1438 bridge-unicast-flood off
1439 bridge-multicast-flood off
1442 iface vmbr3 inet static
1447 netmask 255.255.255.0
1448 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
1454 #interconnect vxlan-vfr l3vni
1456 iface vxlan4000 inet manual
1458 vxlan-local-tunnelip 192.168.0.3
1460 bridge-arp-nd-suppress on
1461 bridge-unicast-flood off
1462 bridge-multicast-flood off
1466 iface vmbr4000 inet manual
1467 bridge_ports vxlan4000
1482 bgp router-id 192.168.0.3
1483 no bgp default ipv4-unicast
1484 no bgp default ipv6-unicast
1486 neighbor 192.168.0.1 remote-as 1234
1487 neighbor 192.168.0.2 remote-as 1234
1489 address-family l2vpn evpn
1490 neighbor 192.168.0.1 activate
1491 neighbor 192.168.0.2 activate
1499 multiple gateway nodes
1500 ^^^^^^^^^^^^^^^^^^^^^^
1501 In this example, all nodes will be used as exit gateway. (But you can use only 2 nodes if you want)
1502 All nodes have a a default gw to the external router (192.168.0.254) (no bgp between router and node1)
1503 and announce this default gw in the vrf (default originate)
1504 The external router have ecmp routes to all proxmox nodes.(balancing).
1505 If the router send the packet to a wrong node (vm is not on this node), this node will route through
1506 vxlan the packet to final destination.
1516 iface eno1 inet manual
1520 iface vmbr0 inet static
1522 netmask 255.255.255.0
1523 gateway 192.168.0.254
1531 iface vxlan2 inet manual
1533 vxlan-local-tunnelip 192.168.0.1
1535 bridge-arp-nd-suppress on
1536 bridge-unicast-flood off
1537 bridge-multicast-flood off
1540 iface vmbr2 inet static
1545 netmask 255.255.255.0
1546 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
1553 iface vxlan3 inet manual
1555 vxlan-local-tunnelip 192.168.0.1
1557 bridge-arp-nd-suppress on
1558 bridge-unicast-flood off
1559 bridge-multicast-flood off
1562 iface vmbr3 inet static
1567 netmask 255.255.255.0
1568 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
1574 #interconnect vxlan-vfr l3vni
1576 iface vxlan4000 inet manual
1578 vxlan-local-tunnelip 192.168.0.1
1580 bridge-arp-nd-suppress on
1581 bridge-unicast-flood off
1582 bridge-multicast-flood off
1585 iface vmbr4000 inet manual
1586 bridge_ports vxlan4000
1601 bgp router-id 192.168.0.1
1602 no bgp default ipv4-unicast
1603 no bgp default ipv6-unicast
1605 neighbor 192.168.0.2 remote-as 1234
1606 neighbor 192.168.0.3 remote-as 1234
1608 address-family ipv4 unicast
1612 address-family ipv6 unicast
1616 address-family l2vpn evpn
1617 neighbor 192.168.0.2 activate
1618 neighbor 192.168.0.3 activate
1622 router bgp 1234 vrf vrf1
1624 address-family ipv4 unicast
1625 redistribute connected
1628 address-family ipv6 unicast
1629 redistribute connected
1632 address-family l2vpn evpn
1633 default-originate ipv4
1634 default-originate ipv6
1650 iface eno1 inet manual
1654 iface vmbr0 inet static
1656 netmask 255.255.255.0
1657 gateway 192.168.0.254
1665 iface vxlan2 inet manual
1667 vxlan-local-tunnelip 192.168.0.2
1669 bridge-arp-nd-suppress on
1670 bridge-unicast-flood off
1671 bridge-multicast-flood off
1674 iface vmbr2 inet static
1679 netmask 255.255.255.0
1680 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
1687 iface vxlan3 inet manual
1689 vxlan-local-tunnelip 192.168.0.2
1691 bridge-arp-nd-suppress on
1692 bridge-unicast-flood off
1693 bridge-multicast-flood off
1696 iface vmbr3 inet static
1701 netmask 255.255.255.0
1702 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
1708 #interconnect vxlan-vfr l3vni
1710 iface vxlan4000 inet manual
1712 vxlan-local-tunnelip 192.168.0.2
1714 bridge-arp-nd-suppress on
1715 bridge-unicast-flood off
1716 bridge-multicast-flood off
1720 iface vmbr4000 inet manual
1721 bridge_ports vxlan4000
1736 bgp router-id 192.168.0.2
1737 no bgp default ipv4-unicast
1738 no bgp default ipv6-unicast
1740 neighbor 192.168.0.1 remote-as 1234
1741 neighbor 192.168.0.3 remote-as 1234
1743 address-family ipv4 unicast
1747 address-family ipv6 unicast
1751 address-family l2vpn evpn
1752 neighbor 192.168.0.1 activate
1753 neighbor 192.168.0.3 activate
1757 address-family ipv4 unicast
1758 redistribute connected
1761 address-family ipv6 unicast
1762 redistribute connected
1765 address-family l2vpn evpn
1766 default-originate ipv4
1767 default-originate ipv6
1783 iface eno1 inet manual
1787 iface vmbr0 inet static
1789 netmask 255.255.255.0
1790 gateway 192.168.0.254
1798 iface vxlan2 inet manual
1800 vxlan-local-tunnelip 192.168.0.3
1802 bridge-arp-nd-suppress on
1803 bridge-unicast-flood off
1804 bridge-multicast-flood off
1807 iface vmbr2 inet static
1812 netmask 255.255.255.0
1813 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
1820 iface vxlan3 inet manual
1822 vxlan-local-tunnelip 192.168.0.3
1824 bridge-arp-nd-suppress on
1825 bridge-unicast-flood off
1826 bridge-multicast-flood off
1829 iface vmbr3 inet static
1834 netmask 255.255.255.0
1835 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
1841 #interconnect vxlan-vfr l3vni
1843 iface vxlan4000 inet manual
1845 vxlan-local-tunnelip 192.168.0.3
1847 bridge-arp-nd-suppress on
1848 bridge-unicast-flood off
1849 bridge-multicast-flood off
1853 iface vmbr4000 inet manual
1854 bridge_ports vxlan4000
1869 bgp router-id 192.168.0.3
1870 no bgp default ipv4-unicast
1871 no bgp default ipv6-unicast
1873 neighbor 192.168.0.1 remote-as 1234
1874 neighbor 192.168.0.2 remote-as 1234
1876 address-family ipv4 unicast
1880 address-family ipv6 unicast
1884 address-family l2vpn evpn
1885 neighbor 192.168.0.1 activate
1886 neighbor 192.168.0.2 activate
1890 router bgp 1234 vrf vrf1
1892 address-family ipv4 unicast
1893 redistribute connected
1896 address-family ipv6 unicast
1897 redistribute connected
1900 address-family l2vpn evpn
1901 default-originate ipv4
1902 default-originate ipv6
1912 If your external router doesn't support 'ECMP static routes' to reach multiple
1913 {pve} nodes, you can setup an HA floating vip on proxmox nodes by using the
1914 Virtual Router Redundancy Protocol (VRRP).
1916 In this example, we will setup an floating 192.168.0.10 IP on node1 and node2.
1917 Node1 is the primary with failover to node2 in case of outage.
1919 This setup currently needs 'vrrpd' package (`apt install vrrpd`).
1920 #TODO : It should be possible to do it with frr directly with last version.
1926 iface vmbr0 inet static
1928 netmask 255.255.255.0
1929 gateway 192.168.0.254
1935 vrrp-virtual-ip 192.168.0.10
1942 iface vmbr0 inet static
1944 netmask 255.255.255.0
1945 gateway 192.168.0.254
1951 vrrp-virtual-ip 192.168.0.10
1957 If you have a lot of proxmox nodes, or multiple proxmox clusters, you may want
1958 to avoid that all node peers with each others nodes.
1959 For this, you can create dedicated route reflectors (RR) servers. As a RR is a
1960 single point of failure, a minimum of two servers acting as an RR is highly
1961 recommended for redundancy.
1963 Below is an example of configuration with 'frr', with `rrserver1
1964 (192.168.0.200)' and `rrserver2 (192.168.0.201)`.
1969 bgp router-id 192.168.0.200
1970 bgp cluster-id 1.1.1.1 #cluster-id must be the same on each route reflector
1971 bgp log-neighbor-changes
1972 no bgp default ipv4-unicast
1973 no bgp default ipv6-unicast
1974 neighbor fabric peer-group
1975 neighbor fabric remote-as 1234
1976 neighbor fabric capability extended-nexthop
1977 neighbor fabric update-source 192.168.0.200
1978 bgp listen range 192.168.0.0/24 peer-group fabric #allow any proxmoxnode client in the network range
1980 address-family l2vpn evpn
1981 neighbor fabric activate
1982 neighbor fabric route-reflector-client
1983 neighbor fabric allowas-in
1993 bgp router-id 192.168.0.201
1994 bgp cluster-id 1.1.1.1
1995 bgp log-neighbor-changes
1996 no bgp default ipv4-unicast
1997 no bgp default ipv6-unicast
1998 neighbor fabric peer-group
1999 neighbor fabric remote-as 1234
2000 neighbor fabric capability extended-nexthop
2001 neighbor fabric update-source 192.168.0.201
2002 bgp listen range 192.168.0.0/24 peer-group fabric
2004 address-family l2vpn evpn
2005 neighbor fabric activate
2006 neighbor fabric route-reflector-client
2007 neighbor fabric allowas-in
2017 bgp router-id 192.168.0.x
2018 no bgp default ipv4-unicast
2019 no bgp default ipv6-unicast
2021 neighbor 192.168.0.200 remote-as 1234
2022 neighbor 192.168.0.201 remote-as 1234
2024 address-family l2vpn evpn
2025 neighbor 192.168.0.200 activate
2026 neighbor 192.168.0.201 activate
2032 #TODO : Documentation with bgp upstream router.