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 l2vpn evpn
1253 neighbor 192.168.0.2 activate
1254 neighbor 192.168.0.3 activate
1258 router bgp 1234 vrf vrf1
1260 address-family ipv4 unicast
1261 redistribute connected
1264 address-family l2vpn evpn
1265 default-originate ipv4
1281 iface eno1 inet manual
1285 iface vmbr0 inet static
1287 netmask 255.255.255.0
1293 iface vxlan2 inet manual
1295 vxlan-local-tunnelip 192.168.0.2
1297 bridge-arp-nd-suppress on
1298 bridge-unicast-flood off
1299 bridge-multicast-flood off
1302 iface vmbr2 inet static
1307 netmask 255.255.255.0
1308 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
1315 iface vxlan3 inet manual
1317 vxlan-local-tunnelip 192.168.0.2
1319 bridge-arp-nd-suppress on
1320 bridge-unicast-flood off
1321 bridge-multicast-flood off
1324 iface vmbr3 inet static
1329 netmask 255.255.255.0
1330 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
1336 #interconnect vxlan-vfr l3vni
1338 iface vxlan4000 inet manual
1340 vxlan-local-tunnelip 192.168.0.2
1342 bridge-arp-nd-suppress on
1343 bridge-unicast-flood off
1344 bridge-multicast-flood off
1348 iface vmbr4000 inet manual
1349 bridge_ports vxlan4000
1364 bgp router-id 192.168.0.2
1365 no bgp default ipv4-unicast
1366 no bgp default ipv6-unicast
1368 neighbor 192.168.0.1 remote-as 1234
1369 neighbor 192.168.0.3 remote-as 1234
1371 address-family l2vpn evpn
1372 neighbor 192.168.0.1 activate
1373 neighbor 192.168.0.3 activate
1390 iface eno1 inet manual
1394 iface vmbr0 inet static
1396 netmask 255.255.255.0
1402 iface vxlan2 inet manual
1404 vxlan-local-tunnelip 192.168.0.3
1406 bridge-arp-nd-suppress on
1407 bridge-unicast-flood off
1408 bridge-multicast-flood off
1411 iface vmbr2 inet static
1416 netmask 255.255.255.0
1417 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
1424 iface vxlan3 inet manual
1426 vxlan-local-tunnelip 192.168.0.3
1428 bridge-arp-nd-suppress on
1429 bridge-unicast-flood off
1430 bridge-multicast-flood off
1433 iface vmbr3 inet static
1438 netmask 255.255.255.0
1439 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
1445 #interconnect vxlan-vfr l3vni
1447 iface vxlan4000 inet manual
1449 vxlan-local-tunnelip 192.168.0.3
1451 bridge-arp-nd-suppress on
1452 bridge-unicast-flood off
1453 bridge-multicast-flood off
1457 iface vmbr4000 inet manual
1458 bridge_ports vxlan4000
1473 bgp router-id 192.168.0.3
1474 no bgp default ipv4-unicast
1475 no bgp default ipv6-unicast
1477 neighbor 192.168.0.1 remote-as 1234
1478 neighbor 192.168.0.2 remote-as 1234
1480 address-family l2vpn evpn
1481 neighbor 192.168.0.1 activate
1482 neighbor 192.168.0.2 activate
1490 multiple gateway nodes
1491 ^^^^^^^^^^^^^^^^^^^^^^
1492 In this example, all nodes will be used as exit gateway. (But you can use only 2 nodes if you want)
1493 All nodes have a a default gw to the external router (192.168.0.254) (no bgp between router and node1)
1494 and announce this default gw in the vrf (default originate)
1495 The external router have ecmp routes to all proxmox nodes.(balancing).
1496 If the router send the packet to a wrong node (vm is not on this node), this node will route through
1497 vxlan the packet to final destination.
1507 iface eno1 inet manual
1511 iface vmbr0 inet static
1513 netmask 255.255.255.0
1514 gateway 192.168.0.254
1522 iface vxlan2 inet manual
1524 vxlan-local-tunnelip 192.168.0.1
1526 bridge-arp-nd-suppress on
1527 bridge-unicast-flood off
1528 bridge-multicast-flood off
1531 iface vmbr2 inet static
1536 netmask 255.255.255.0
1537 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
1544 iface vxlan3 inet manual
1546 vxlan-local-tunnelip 192.168.0.1
1548 bridge-arp-nd-suppress on
1549 bridge-unicast-flood off
1550 bridge-multicast-flood off
1553 iface vmbr3 inet static
1558 netmask 255.255.255.0
1559 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
1565 #interconnect vxlan-vfr l3vni
1567 iface vxlan4000 inet manual
1569 vxlan-local-tunnelip 192.168.0.1
1571 bridge-arp-nd-suppress on
1572 bridge-unicast-flood off
1573 bridge-multicast-flood off
1576 iface vmbr4000 inet manual
1577 bridge_ports vxlan4000
1592 bgp router-id 192.168.0.1
1593 no bgp default ipv4-unicast
1594 no bgp default ipv6-unicast
1596 neighbor 192.168.0.2 remote-as 1234
1597 neighbor 192.168.0.3 remote-as 1234
1599 address-family ipv4 unicast
1603 address-family l2vpn evpn
1604 neighbor 192.168.0.2 activate
1605 neighbor 192.168.0.3 activate
1609 router bgp 1234 vrf vrf1
1611 address-family ipv4 unicast
1612 redistribute connected
1615 address-family l2vpn evpn
1616 default-originate ipv4
1632 iface eno1 inet manual
1636 iface vmbr0 inet static
1638 netmask 255.255.255.0
1639 gateway 192.168.0.254
1647 iface vxlan2 inet manual
1649 vxlan-local-tunnelip 192.168.0.2
1651 bridge-arp-nd-suppress on
1652 bridge-unicast-flood off
1653 bridge-multicast-flood off
1656 iface vmbr2 inet static
1661 netmask 255.255.255.0
1662 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
1669 iface vxlan3 inet manual
1671 vxlan-local-tunnelip 192.168.0.2
1673 bridge-arp-nd-suppress on
1674 bridge-unicast-flood off
1675 bridge-multicast-flood off
1678 iface vmbr3 inet static
1683 netmask 255.255.255.0
1684 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
1690 #interconnect vxlan-vfr l3vni
1692 iface vxlan4000 inet manual
1694 vxlan-local-tunnelip 192.168.0.2
1696 bridge-arp-nd-suppress on
1697 bridge-unicast-flood off
1698 bridge-multicast-flood off
1702 iface vmbr4000 inet manual
1703 bridge_ports vxlan4000
1718 bgp router-id 192.168.0.2
1719 no bgp default ipv4-unicast
1720 no bgp default ipv6-unicast
1722 neighbor 192.168.0.1 remote-as 1234
1723 neighbor 192.168.0.3 remote-as 1234
1725 address-family ipv4 unicast
1729 address-family l2vpn evpn
1730 neighbor 192.168.0.1 activate
1731 neighbor 192.168.0.3 activate
1735 address-family ipv4 unicast
1736 redistribute connected
1739 address-family l2vpn evpn
1740 default-originate ipv4
1756 iface eno1 inet manual
1760 iface vmbr0 inet static
1762 netmask 255.255.255.0
1763 gateway 192.168.0.254
1771 iface vxlan2 inet manual
1773 vxlan-local-tunnelip 192.168.0.3
1775 bridge-arp-nd-suppress on
1776 bridge-unicast-flood off
1777 bridge-multicast-flood off
1780 iface vmbr2 inet static
1785 netmask 255.255.255.0
1786 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2
1793 iface vxlan3 inet manual
1795 vxlan-local-tunnelip 192.168.0.3
1797 bridge-arp-nd-suppress on
1798 bridge-unicast-flood off
1799 bridge-multicast-flood off
1802 iface vmbr3 inet static
1807 netmask 255.255.255.0
1808 hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3
1814 #interconnect vxlan-vfr l3vni
1816 iface vxlan4000 inet manual
1818 vxlan-local-tunnelip 192.168.0.3
1820 bridge-arp-nd-suppress on
1821 bridge-unicast-flood off
1822 bridge-multicast-flood off
1826 iface vmbr4000 inet manual
1827 bridge_ports vxlan4000
1842 bgp router-id 192.168.0.3
1843 no bgp default ipv4-unicast
1844 no bgp default ipv6-unicast
1846 neighbor 192.168.0.1 remote-as 1234
1847 neighbor 192.168.0.2 remote-as 1234
1849 address-family ipv4 unicast
1853 address-family l2vpn evpn
1854 neighbor 192.168.0.1 activate
1855 neighbor 192.168.0.2 activate
1859 router bgp 1234 vrf vrf1
1861 address-family ipv4 unicast
1862 redistribute connected
1865 address-family l2vpn evpn
1866 default-originate ipv4
1876 If your external router doesn't support 'ECMP static routes' to reach multiple
1877 {pve} nodes, you can setup an HA floating vip on proxmox nodes by using the
1878 Virtual Router Redundancy Protocol (VRRP).
1880 In this example, we will setup an floating 192.168.0.10 IP on node1 and node2.
1881 Node1 is the primary with failover to node2 in case of outage.
1883 This setup currently needs 'vrrpd' package (`apt install vrrpd`).
1884 #TODO : It should be possible to do it with frr directly with last version.
1890 iface vmbr0 inet static
1892 netmask 255.255.255.0
1893 gateway 192.168.0.254
1899 vrrp-virtual-ip 192.168.0.10
1906 iface vmbr0 inet static
1908 netmask 255.255.255.0
1909 gateway 192.168.0.254
1915 vrrp-virtual-ip 192.168.0.10
1921 If you have a lot of proxmox nodes, or multiple proxmox clusters, you may want
1922 to avoid that all node peers with each others nodes.
1923 For this, you can create dedicated route reflectors (RR) servers. As a RR is a
1924 single point of failure, a minimum of two servers acting as an RR is highly
1925 recommended for redundancy.
1927 Below is an example of configuration with 'frr', with `rrserver1
1928 (192.168.0.200)' and `rrserver2 (192.168.0.201)`.
1933 bgp router-id 192.168.0.200
1934 bgp cluster-id 1.1.1.1 #cluster-id must be the same on each route reflector
1935 bgp log-neighbor-changes
1936 no bgp default ipv4-unicast
1937 no bgp default ipv6-unicast
1938 neighbor fabric peer-group
1939 neighbor fabric remote-as 1234
1940 neighbor fabric capability extended-nexthop
1941 neighbor fabric update-source 192.168.0.200
1942 bgp listen range 192.168.0.0/24 peer-group fabric #allow any proxmoxnode client in the network range
1944 address-family l2vpn evpn
1945 neighbor fabric activate
1946 neighbor fabric route-reflector-client
1947 neighbor fabric allowas-in
1957 bgp router-id 192.168.0.201
1958 bgp cluster-id 1.1.1.1
1959 bgp log-neighbor-changes
1960 no bgp default ipv4-unicast
1961 no bgp default ipv6-unicast
1962 neighbor fabric peer-group
1963 neighbor fabric remote-as 1234
1964 neighbor fabric capability extended-nexthop
1965 neighbor fabric update-source 192.168.0.201
1966 bgp listen range 192.168.0.0/24 peer-group fabric
1968 address-family l2vpn evpn
1969 neighbor fabric activate
1970 neighbor fabric route-reflector-client
1971 neighbor fabric allowas-in
1981 bgp router-id 192.168.0.x
1982 no bgp default ipv4-unicast
1983 no bgp default ipv6-unicast
1985 neighbor 192.168.0.200 remote-as 1234
1986 neighbor 192.168.0.201 remote-as 1234
1988 address-family l2vpn evpn
1989 neighbor 192.168.0.200 activate
1990 neighbor 192.168.0.201 activate
1996 #TODO : Documentation with bgp upstream router.