projects / pve-docs.git / blame
| Commit | Line | Data |
|---|---|---|
| 445822a9 DM |
1 | |
| 2 | //// | |
| 3 | ||
| 4 | This is currently not included, because | |
| 5 | - it requires ifupdown2 | |
| 6 | - routing needs more documentation | |
| 7 | ||
| 8 | //// | |
| 9 | ||
| 10 | ||
| 11 | VXLAN layer2 with vlan unware linux bridges | |
| 12 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
| 13 | ||
| 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). | |
| 18 | ||
| 19 | For BUM traffic (broadcast / unknown unicast traffic, multicast), | |
| 20 | we have 3 differents vxlan setup modes : multicast, unicast, bgp-evpn | |
| 21 | ||
| 22 | image::images/vxlan-l2-vlanunaware.svg["vxlan l2 bridge vlan unaware",align="center"] | |
| 23 | ||
| 24 | multicast mode | |
| 25 | ^^^^^^^^^^^^^^ | |
| 26 | ||
| 27 | This scenario relies in head end replication, meaning that end host in case | |
| 28 | of not having any entry for the destination MAC address will send out an ARP | |
| 29 | to other devices / VTEPs in the VXLAN network. | |
| 30 | This is done by sending the request to the VXLAN multicast group, | |
| 31 | remote VTEPs will get the packet and answer accordingly direct to the originating VTEP. | |
| 32 | ||
| 33 | ||
| 34 | * node1 | |
| 35 | ||
| 36 | ---- | |
| 37 | auto eno1 | |
| 38 | iface eno1 inet manual | |
| 39 | ||
| 40 | auto vmbr0 | |
| 41 | iface vmbr0 inet static | |
| 42 | address 192.168.0.1 | |
| 43 | netmask 255.255.255.0 | |
| 44 | bridge_ports eno1 | |
| 45 | bridge_stp off | |
| 46 | bridge_fd 0 | |
| 47 | ||
| 48 | auto vxlan2 | |
| 49 | iface vxlan2 inet manual | |
| 50 | vxlan-svcnodeip 225.20.1.1 | |
| 51 | vxlan-physdev eno1 | |
| 52 | ||
| 53 | auto vmbr2 | |
| 54 | iface vmbr2 inet manual | |
| 55 | bridge_ports vxlan2 | |
| 56 | bridge_stp off | |
| 57 | bridge_fd 0 | |
| 58 | ||
| 59 | auto vxlan3 | |
| 60 | iface vxlan3 inet manual | |
| 61 | vxlan-svcnodeip 225.20.1.1 | |
| 62 | vxlan-physdev eno1 | |
| 63 | ||
| 64 | auto vmbr3 | |
| 65 | iface vmbr3 inet manual | |
| 66 | bridge_ports vxlan3 | |
| 67 | bridge_stp off | |
| 68 | bridge_fd 0 | |
| 69 | ---- | |
| 70 | ||
| 71 | ||
| 72 | * node2 | |
| 73 | ||
| 74 | ---- | |
| 75 | auto eno1 | |
| 76 | iface eno1 inet manual | |
| 77 | ||
| 78 | auto vmbr0 | |
| 79 | iface vmbr0 inet static | |
| 80 | address 192.168.0.2 | |
| 81 | netmask 255.255.255.0 | |
| 82 | bridge_ports eno1 | |
| 83 | bridge_stp off | |
| 84 | bridge_fd 0 | |
| 85 | ||
| 86 | auto vxlan2 | |
| 87 | iface vxlan2 inet manual | |
| 88 | vxlan-svcnodeip 225.20.1.1 | |
| 89 | vxlan-physdev eno1 | |
| 90 | ||
| 91 | auto vmbr2 | |
| 92 | iface vmbr2 inet manual | |
| 93 | bridge_ports vxlan2 | |
| 94 | bridge_stp off | |
| 95 | bridge_fd 0 | |
| 96 | ||
| 97 | ||
| 98 | auto vxlan3 | |
| 99 | iface vxlan3 inet manual | |
| 100 | vxlan-svcnodeip 225.20.1.1 | |
| 101 | vxlan-physdev eno1 | |
| 102 | ||
| 103 | auto vmbr3 | |
| 104 | iface vmbr3 inet manual | |
| 105 | bridge_ports vxlan3 | |
| 106 | bridge_stp off | |
| 107 | bridge_fd 0 | |
| 108 | ---- | |
| 109 | ||
| 110 | ||
| 111 | * node3 | |
| 112 | ||
| 113 | ---- | |
| 114 | auto eno1 | |
| 115 | iface eno1 inet manual | |
| 116 | ||
| 117 | auto vmbr0 | |
| 118 | iface vmbr0 inet static | |
| 119 | address 192.168.0.3 | |
| 120 | netmask 255.255.255.0 | |
| 121 | bridge_ports eno1 | |
| 122 | bridge_stp off | |
| 123 | bridge_fd 0 | |
| 124 | ||
| 125 | auto vxlan2 | |
| 126 | iface vxlan2 inet manual | |
| 127 | vxlan-svcnodeip 225.20.1.1 | |
| 128 | vxlan-physdev eno1 | |
| 129 | ||
| 130 | auto vmbr2 | |
| 131 | iface vmbr2 inet manual | |
| 132 | bridge_ports vxlan2 | |
| 133 | bridge_stp off | |
| 134 | bridge_fd 0 | |
| 135 | ||
| 136 | ||
| 137 | auto vxlan3 | |
| 138 | iface vxlan3 inet manual | |
| 139 | vxlan-svcnodeip 225.20.1.1 | |
| 140 | vxlan-physdev eno1 | |
| 141 | ||
| 142 | auto vmbr3 | |
| 143 | iface vmbr3 inet manual | |
| 144 | bridge_ports vxlan3 | |
| 145 | bridge_stp off | |
| 146 | bridge_fd 0 | |
| 147 | ---- | |
| 148 | ||
| 149 | ||
| 150 | unicast mode | |
| 151 | ^^^^^^^^^^^^ | |
| 152 | ||
| 153 | We can replace multicast by head-end replication of BUM frames to a statically configured lists of remote VTEPs. | |
| 154 | The VXLAN is defined without a remote multicast group. | |
| 155 | Instead, all the remote VTEPs are associated with the all-zero address: | |
| 156 | a BUM frame will be duplicated to all these destinations. | |
| 157 | The VXLAN device will still learn remote addresses automatically using source-address learning. | |
| 158 | ||
| 159 | * node1 | |
| 160 | ||
| 161 | ---- | |
| 162 | auto eno1 | |
| 163 | iface eno1 inet manual | |
| 164 | ||
| 165 | auto vmbr0 | |
| 166 | iface vmbr0 inet static | |
| 167 | address 192.168.0.1 | |
| 168 | netmask 255.255.255.0 | |
| 169 | bridge_ports eno1 | |
| 170 | bridge_stp off | |
| 171 | bridge_fd 0 | |
| 172 | ||
| 173 | ||
| 174 | auto vxlan2 | |
| 175 | iface vxlan2 inet manual | |
| 176 | vxlan_remoteip 192.168.0.2 | |
| 177 | vxlan_remoteip 192.168.0.3 | |
| 178 | ||
| 179 | ||
| 180 | auto vmbr2 | |
| 181 | iface vmbr2 inet manual | |
| 182 | bridge_ports vxlan2 | |
| 183 | bridge_stp off | |
| 184 | bridge_fd 0 | |
| 185 | ||
| 186 | ||
| 187 | auto vxlan3 | |
| 188 | iface vxlan2 inet manual | |
| 189 | vxlan_remoteip 192.168.0.2 | |
| 190 | vxlan_remoteip 192.168.0.3 | |
| 191 | ||
| 192 | ||
| 193 | auto vmbr3 | |
| 194 | iface vmbr3 inet manual | |
| 195 | bridge_ports vxlan3 | |
| 196 | bridge_stp off | |
| 197 | bridge_fd 0 | |
| 198 | ---- | |
| 199 | ||
| 200 | ||
| 201 | * node2 | |
| 202 | ||
| 203 | ---- | |
| 204 | auto eno1 | |
| 205 | iface eno1 inet manual | |
| 206 | ||
| 207 | auto vmbr0 | |
| 208 | iface vmbr0 inet static | |
| 209 | address 192.168.0.2 | |
| 210 | netmask 255.255.255.0 | |
| 211 | bridge_ports eno1 | |
| 212 | bridge_stp off | |
| 213 | bridge_fd 0 | |
| 214 | ||
| 215 | auto vxlan2 | |
| 216 | iface vxlan2 inet manual | |
| 217 | vxlan_remoteip 192.168.0.1 | |
| 218 | vxlan_remoteip 192.168.0.3 | |
| 219 | ||
| 220 | ||
| 221 | ||
| 222 | auto vmbr2 | |
| 223 | iface vmbr2 inet manual | |
| 224 | bridge_ports vxlan2 | |
| 225 | bridge_stp off | |
| 226 | bridge_fd 0 | |
| 227 | ||
| 228 | auto vxlan3 | |
| 229 | iface vxlan2 inet manual | |
| 230 | vxlan_remoteip 192.168.0.1 | |
| 231 | vxlan_remoteip 192.168.0.3 | |
| 232 | ||
| 233 | ||
| 234 | auto vmbr3 | |
| 235 | iface vmbr3 inet manual | |
| 236 | bridge_ports vxlan3 | |
| 237 | bridge_stp off | |
| 238 | bridge_fd 0 | |
| 239 | ---- | |
| 240 | ||
| 241 | ||
| 242 | * node3 | |
| 243 | ||
| 244 | ---- | |
| 245 | auto eno1 | |
| 246 | iface eno1 inet manual | |
| 247 | ||
| 248 | auto vmbr0 | |
| 249 | iface vmbr0 inet static | |
| 250 | address 192.168.0.3 | |
| 251 | netmask 255.255.255.0 | |
| 252 | bridge_ports eno1 | |
| 253 | bridge_stp off | |
| 254 | bridge_fd 0 | |
| 255 | ||
| 256 | auto vxlan2 | |
| 257 | iface vxlan2 inet manual | |
| 258 | vxlan_remoteip 192.168.0.2 | |
| 259 | vxlan_remoteip 192.168.0.3 | |
| 260 | ||
| 261 | ||
| 262 | ||
| 263 | auto vmbr2 | |
| 264 | iface vmbr2 inet manual | |
| 265 | bridge_ports vxlan2 | |
| 266 | bridge_stp off | |
| 267 | bridge_fd 0 | |
| 268 | ||
| 269 | auto vxlan3 | |
| 270 | iface vxlan2 inet manual | |
| 271 | vxlan_remoteip 192.168.0.2 | |
| 272 | vxlan_remoteip 192.168.0.3 | |
| 273 | ||
| 274 | ||
| 275 | auto vmbr3 | |
| 276 | iface vmbr3 inet manual | |
| 277 | bridge_ports vxlan3 | |
| 278 | bridge_stp off | |
| 279 | bridge_fd 0 | |
| 280 | ---- | |
| 281 | ||
| 282 | ||
| 283 | bgp-evpn | |
| 284 | ^^^^^^^^ | |
| 285 | ||
| 286 | VTEPs use control plane learning/distribution via BGP for remote MAC addresses instead of data plane learning. | |
| 287 | VTEPs have the ability to suppress ARP flooding over VXLAN tunnels. | |
| 288 | ||
| 289 | The control plane used here is FRR, a bgp routing software. | |
| 290 | Each node in the proxmox cluster peer with each others nodes. | |
| 291 | For bigger networks, or multiple proxmox clusters, | |
| 292 | it's possible to use external bgp route reflector servers. | |
| 293 | ||
| 294 | * node1 | |
| 295 | ||
| 296 | ---- | |
| 297 | auto eno1 | |
| 298 | iface eno1 inet manual | |
| 299 | ||
| 300 | auto vmbr0 | |
| 301 | iface vmbr0 inet static | |
| 302 | address 192.168.0.1 | |
| 303 | netmask 255.255.255.0 | |
| 304 | bridge_ports eno1 | |
| 305 | bridge_stp off | |
| 306 | bridge_fd 0 | |
| 307 | ||
| 308 | auto vxlan2 | |
| 309 | iface vxlan2 inet manual | |
| 310 | vxlan-local-tunnelip 192.168.0.1 | |
| 311 | bridge-learning off | |
| 312 | bridge-arp-nd-suppress on | |
| 313 | bridge-unicast-flood off | |
| 314 | bridge-multicast-flood off | |
| 315 | ||
| 316 | ||
| 317 | auto vmbr2 | |
| 318 | iface vmbr2 inet manual | |
| 319 | bridge_ports vxlan2 | |
| 320 | bridge_stp off | |
| 321 | bridge_fd 0 | |
| 322 | ||
| 323 | ||
| 324 | auto vxlan3 | |
| 325 | iface vxlan3 inet manual | |
| 326 | vxlan-local-tunnelip 192.168.0.1 | |
| 327 | bridge-learning off | |
| 328 | bridge-arp-nd-suppress on | |
| 329 | bridge-unicast-flood off | |
| 330 | bridge-multicast-flood off | |
| 331 | ||
| 332 | ||
| 333 | auto vmbr3 | |
| 334 | iface vmbr3 inet manual | |
| 335 | bridge_ports vxlan3 | |
| 336 | bridge_stp off | |
| 337 | bridge_fd 0 | |
| 338 | ---- | |
| 339 | ||
| 340 | ||
| 341 | /etc/frr/frr.conf | |
| 342 | ||
| 343 | ---- | |
| 344 | router bgp 1234 | |
| 345 | no bgp default ipv4-unicast | |
| 346 | coalesce-time 1000 | |
| 347 | neighbor 192.168.0.2 remote-as 1234 | |
| 348 | neighbor 192.168.0.3 remote-as 1234 | |
| 349 | ! | |
| 350 | address-family l2vpn evpn | |
| 351 | neighbor 192.168.0.2 activate | |
| 352 | neighbor 192.168.0.3 activate | |
| 353 | advertise-all-vni | |
| 354 | exit-address-family | |
| 355 | ! | |
| 356 | line vty | |
| 357 | ! | |
| 358 | ---- | |
| 359 | ||
| 360 | ||
| 361 | * node2 | |
| 362 | ||
| 363 | ---- | |
| 364 | auto eno1 | |
| 365 | iface eno1 inet manual | |
| 366 | ||
| 367 | auto vmbr0 | |
| 368 | iface vmbr0 inet static | |
| 369 | address 192.168.0.2 | |
| 370 | netmask 255.255.255.0 | |
| 371 | bridge_ports eno1 | |
| 372 | bridge_stp off | |
| 373 | bridge_fd 0 | |
| 374 | ||
| 375 | auto vxlan2 | |
| 376 | iface vxlan2 inet manual | |
| 377 | vxlan-local-tunnelip 192.168.0.2 | |
| 378 | bridge-learning off | |
| 379 | bridge-arp-nd-suppress on | |
| 380 | bridge-unicast-flood off | |
| 381 | bridge-multicast-flood off | |
| 382 | ||
| 383 | ||
| 384 | auto vmbr2 | |
| 385 | iface vmbr2 inet manual | |
| 386 | bridge_ports vxlan2 | |
| 387 | bridge_stp off | |
| 388 | bridge_fd 0 | |
| 389 | ||
| 390 | auto vxlan3 | |
| 391 | iface vxlan3 inet manual | |
| 392 | vxlan-local-tunnelip 192.168.0.2 | |
| 393 | bridge-learning off | |
| 394 | bridge-arp-nd-suppress on | |
| 395 | bridge-unicast-flood off | |
| 396 | bridge-multicast-flood off | |
| 397 | ||
| 398 | ||
| 399 | auto vmbr3 | |
| 400 | iface vmbr3 inet manual | |
| 401 | bridge_ports vxlan3 | |
| 402 | bridge_stp off | |
| 403 | bridge_fd 0 | |
| 404 | ---- | |
| 405 | ||
| 406 | ||
| 407 | /etc/frr/frr.conf | |
| 408 | ||
| 409 | ---- | |
| 410 | router bgp 1234 | |
| 411 | no bgp default ipv4-unicast | |
| 412 | coalesce-time 1000 | |
| 413 | neighbor 192.168.0.1 remote-as 1234 | |
| 414 | neighbor 192.168.0.3 remote-as 1234 | |
| 415 | ! | |
| 416 | address-family l2vpn evpn | |
| 417 | neighbor 192.168.0.1 activate | |
| 418 | neighbor 192.168.0.3 activate | |
| 419 | advertise-all-vni | |
| 420 | exit-address-family | |
| 421 | ! | |
| 422 | line vty | |
| 423 | ! | |
| 424 | ---- | |
| 425 | ||
| 426 | ||
| 427 | * node3 | |
| 428 | ||
| 429 | ---- | |
| 430 | auto eno1 | |
| 431 | iface eno1 inet manual | |
| 432 | ||
| 433 | auto vmbr0 | |
| 434 | iface vmbr0 inet static | |
| 435 | address 192.168.0.2 | |
| 436 | netmask 255.255.255.0 | |
| 437 | bridge_ports eno1 | |
| 438 | bridge_stp off | |
| 439 | bridge_fd 0 | |
| 440 | ||
| 441 | auto vxlan2 | |
| 442 | iface vxlan2 inet manual | |
| 443 | vxlan-local-tunnelip 192.168.0.3 | |
| 444 | bridge-learning off | |
| 445 | bridge-arp-nd-suppress on | |
| 446 | bridge-unicast-flood off | |
| 447 | bridge-multicast-flood off | |
| 448 | ||
| 449 | ||
| 450 | auto vmbr2 | |
| 451 | iface vmbr2 inet manual | |
| 452 | bridge_ports vxlan2 | |
| 453 | bridge_stp off | |
| 454 | bridge_fd 0 | |
| 455 | ||
| 456 | auto vxlan3 | |
| 457 | iface vxlan3 inet manual | |
| 458 | vxlan-local-tunnelip 192.168.0.3 | |
| 459 | bridge-learning off | |
| 460 | bridge-arp-nd-suppress on | |
| 461 | bridge-unicast-flood off | |
| 462 | bridge-multicast-flood off | |
| 463 | ||
| 464 | ||
| 465 | auto vmbr3 | |
| 466 | iface vmbr3 inet manual | |
| 467 | bridge_ports vxlan3 | |
| 468 | bridge_stp off | |
| 469 | bridge_fd 0 | |
| 470 | ---- | |
| 471 | ||
| 472 | ||
| 473 | /etc/frr/frr.conf | |
| 474 | ||
| 475 | ||
| 476 | ---- | |
| 477 | router bgp 1234 | |
| 478 | no bgp default ipv4-unicast | |
| 479 | coalesce-time 1000 | |
| 480 | neighbor 192.168.0.1 remote-as 1234 | |
| 481 | neighbor 192.168.0.2 remote-as 1234 | |
| 482 | ! | |
| 483 | address-family l2vpn evpn | |
| 484 | neighbor 192.168.0.1 activate | |
| 485 | neighbor 192.168.0.2 activate | |
| 486 | advertise-all-vni | |
| 487 | exit-address-family | |
| 488 | ! | |
| 489 | line vty | |
| 490 | ! | |
| 491 | ---- | |
| 492 | ||
| 1821b137 AD |
493 | VXLAN layer3 routing with anycast gateway |
| 494 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
| 495 | ||
| 496 | With this need, each vmbr bridge will be the gateway for the vm. | |
| 497 | Same vmbr on different node, will have same ip address and same mac address, | |
| 498 | to have working vm live migration and no network disruption. | |
| 499 | ||
| 500 | VXLAN layer3 routing only work with FRR and non-aware bridge. | |
| 501 | (vlan aware bridge support is buggy currently). | |
| 502 | ||
| 1821b137 AD |
503 | asymmetric model |
| 504 | ^^^^^^^^^^^^^^^^ | |
| 505 | ||
| 506 | This is the simplest mode. To get it work, all vxlan need to be defined on all nodes. | |
| 507 | ||
| 508 | The asymmetric model allows routing and bridging on the VXLAN tunnel ingress, | |
| 509 | but only bridging on the egress. | |
| 510 | This results in bi-directional VXLAN traffic traveling on different VNIs | |
| 511 | in each direction (always the destination VNI) across the routed infrastructure. | |
| 512 | ||
| 513 | image::images/vxlan-l3-asymmetric.svg["vxlan l3 asymmetric",align="center"] | |
| 514 | ||
| 515 | ||
| ccecb4f9 AD |
516 | sysctl.conf tuning |
| 517 | ||
| 518 | ---- | |
| 519 | #enable routing | |
| 520 | net.ipv4.ip_forward=1 | |
| 521 | net.ipv6.conf.all.forwarding=1 | |
| 522 | ---- | |
| 523 | ||
| 1821b137 AD |
524 | * node1 |
| 525 | ||
| 526 | ---- | |
| 527 | auto eno1 | |
| 528 | iface eno1 inet manual | |
| 529 | ||
| 530 | auto vmbr0 | |
| 531 | iface vmbr0 inet static | |
| 532 | address 192.168.0.1 | |
| 533 | netmask 255.255.255.0 | |
| 534 | bridge_ports eno1 | |
| 535 | bridge_stp off | |
| 536 | bridge_fd 0 | |
| 537 | ||
| 538 | auto vxlan2 | |
| 539 | iface vxlan2 inet manual | |
| 540 | vxlan-local-tunnelip 192.168.0.1 | |
| 541 | bridge-learning off | |
| 542 | bridge-arp-nd-suppress on | |
| 543 | bridge-unicast-flood off | |
| 544 | bridge-multicast-flood off | |
| 545 | ||
| 546 | ||
| 547 | auto vmbr2 | |
| 548 | iface vmbr2 inet static | |
| 549 | address 10.0.2.254 | |
| 550 | netmask 255.255.255.0 | |
| 551 | hwaddress 44:39:39:FF:40:94 | |
| 552 | bridge_ports vxlan2 | |
| 553 | bridge_stp off | |
| 554 | bridge_fd 0 | |
| 555 | ||
| 556 | ||
| 557 | auto vxlan3 | |
| 558 | iface vxlan3 inet manual | |
| 559 | vxlan-local-tunnelip 192.168.0.1 | |
| 560 | bridge-learning off | |
| 561 | bridge-arp-nd-suppress on | |
| 562 | bridge-unicast-flood off | |
| 563 | bridge-multicast-flood off | |
| 564 | ||
| 565 | ||
| 566 | auto vmbr3 | |
| 567 | iface vmbr3 inet static | |
| 568 | address 10.0.3.254 | |
| 569 | netmask 255.255.255.0 | |
| 570 | hwaddress 44:39:39:FF:40:94 | |
| 571 | bridge_ports vxlan3 | |
| 572 | bridge_stp off | |
| 573 | bridge_fd 0 | |
| 574 | ---- | |
| 575 | ||
| 576 | ||
| 577 | frr.conf | |
| 578 | ||
| 579 | ---- | |
| 580 | router bgp 1234 | |
| 581 | bgp router-id 192.168.0.1 | |
| 582 | no bgp default ipv4-unicast | |
| 583 | coalesce-time 1000 | |
| 584 | neighbor 192.168.0.2 remote-as 1234 | |
| 585 | neighbor 192.168.0.3 remote-as 1234 | |
| 586 | ! | |
| 587 | address-family l2vpn evpn | |
| 588 | neighbor 192.168.0.2 activate | |
| 589 | neighbor 192.168.0.3 activate | |
| 590 | advertise-all-vni | |
| 591 | exit-address-family | |
| 592 | ! | |
| 593 | line vty | |
| 594 | ! | |
| 595 | ---- | |
| 596 | ||
| 597 | ||
| 598 | * node2 | |
| 599 | ||
| 600 | ---- | |
| 601 | auto eno1 | |
| 602 | iface eno1 inet manual | |
| 603 | ||
| 604 | auto vmbr0 | |
| 605 | iface vmbr0 inet static | |
| 606 | address 192.168.0.2 | |
| 607 | netmask 255.255.255.0 | |
| 608 | bridge_ports eno1 | |
| 609 | bridge_stp off | |
| 610 | bridge_fd 0 | |
| 611 | ||
| 612 | auto vxlan2 | |
| 613 | iface vxlan2 inet manual | |
| 614 | vxlan-local-tunnelip 192.168.0.2 | |
| 615 | bridge-learning off | |
| 616 | bridge-arp-nd-suppress on | |
| 617 | bridge-unicast-flood off | |
| 618 | bridge-multicast-flood off | |
| 619 | ||
| 620 | ||
| 621 | auto vmbr2 | |
| 622 | iface vmbr2 inet static | |
| 623 | address 10.0.2.254 | |
| 624 | netmask 255.255.255.0 | |
| 625 | hwaddress 44:39:39:FF:40:94 | |
| 626 | bridge_ports vxlan2 | |
| 627 | bridge_stp off | |
| 628 | bridge_fd 0 | |
| 629 | ||
| 630 | ||
| 631 | auto vxlan3 | |
| 632 | iface vxlan3 inet manual | |
| 633 | vxlan-local-tunnelip 192.168.0.2 | |
| 634 | bridge-learning off | |
| 635 | bridge-arp-nd-suppress on | |
| 636 | bridge-unicast-flood off | |
| 637 | bridge-multicast-flood off | |
| 638 | ||
| 639 | ||
| 640 | auto vmbr3 | |
| 641 | iface vmbr3 inet static | |
| 642 | address 10.0.3.254 | |
| 643 | netmask 255.255.255.0 | |
| 644 | hwaddress 44:39:39:FF:40:94 | |
| 645 | bridge_ports vxlan3 | |
| 646 | bridge_stp off | |
| 647 | bridge_fd 0 | |
| 648 | ---- | |
| 649 | ||
| 650 | ||
| 651 | frr.conf | |
| 652 | ||
| 653 | ---- | |
| 654 | router bgp 1234 | |
| 655 | bgp router-id 192.168.0.2 | |
| 656 | no bgp default ipv4-unicast | |
| 657 | coalesce-time 1000 | |
| 658 | neighbor 192.168.0.1 remote-as 1234 | |
| 659 | neighbor 192.168.0.3 remote-as 1234 | |
| 660 | ! | |
| 661 | address-family l2vpn evpn | |
| 662 | neighbor 192.168.0.1 activate | |
| 663 | neighbor 192.168.0.3 activate | |
| 664 | advertise-all-vni | |
| 665 | exit-address-family | |
| 666 | ! | |
| 667 | line vty | |
| 668 | ! | |
| 669 | ---- | |
| 670 | ||
| 671 | ||
| 672 | * node3 | |
| 673 | ||
| 674 | ---- | |
| 675 | auto eno1 | |
| 676 | iface eno1 inet manual | |
| 677 | ||
| 678 | auto vmbr0 | |
| 679 | iface vmbr0 inet static | |
| 680 | address 192.168.0.3 | |
| 681 | netmask 255.255.255.0 | |
| 682 | bridge_ports eno1 | |
| 683 | bridge_stp off | |
| 684 | bridge_fd 0 | |
| 685 | ||
| 686 | auto vxlan2 | |
| 687 | iface vxlan2 inet manual | |
| 688 | vxlan-local-tunnelip 192.168.0.3 | |
| 689 | bridge-learning off | |
| 690 | bridge-arp-nd-suppress on | |
| 691 | bridge-unicast-flood off | |
| 692 | bridge-multicast-flood off | |
| 693 | ||
| 694 | ||
| 695 | auto vmbr2 | |
| 696 | iface vmbr2 inet static | |
| 697 | address 10.0.2.254 | |
| 698 | netmask 255.255.255.0 | |
| 699 | hwaddress 44:39:39:FF:40:94 | |
| 700 | bridge_ports vxlan2 | |
| 701 | bridge_stp off | |
| 702 | bridge_fd 0 | |
| 703 | ||
| 704 | ||
| 705 | auto vxlan3 | |
| 706 | iface vxlan3 inet manual | |
| 707 | vxlan-local-tunnelip 192.168.0.3 | |
| 708 | bridge-learning off | |
| 709 | bridge-arp-nd-suppress on | |
| 710 | bridge-unicast-flood off | |
| 711 | bridge-multicast-flood off | |
| 712 | ||
| 713 | ||
| 714 | auto vmbr3 | |
| 715 | iface vmbr3 inet static | |
| 716 | address 10.0.3.254 | |
| 717 | netmask 255.255.255.0 | |
| 718 | hwaddress 44:39:39:FF:40:94 | |
| 719 | bridge_ports vxlan3 | |
| 720 | bridge_stp off | |
| 721 | bridge_fd 0 | |
| 722 | ---- | |
| 723 | ||
| 724 | ||
| 725 | frr.conf | |
| 726 | ||
| 727 | ---- | |
| 728 | router bgp 1234 | |
| 729 | bgp router-id 192.168.0.3 | |
| 730 | no bgp default ipv4-unicast | |
| 731 | coalesce-time 1000 | |
| 732 | neighbor 192.168.0.1 remote-as 1234 | |
| 733 | neighbor 192.168.0.2 remote-as 1234 | |
| 734 | ! | |
| 735 | address-family l2vpn evpn | |
| 736 | neighbor 192.168.0.1 activate | |
| 737 | neighbor 192.168.0.2 activate | |
| 738 | advertise-all-vni | |
| 739 | exit-address-family | |
| 740 | ! | |
| 741 | line vty | |
| 742 | ! | |
| 743 | ---- | |
| 744 | ||
| 745 | ||
| 746 | symmetric model | |
| 747 | ^^^^^^^^^^^^^^^ | |
| 748 | ||
| 749 | With this model, you don't need to have all vxlan on all nodes. | |
| 750 | This model will also be needed to route traffic to an external router. | |
| 751 | ||
| 752 | The symmetric model routes and bridges on both the ingress and the egress leafs. | |
| 753 | This results in bi-directional traffic being able to travel on the same VNI, hence the symmetric name. | |
| 754 | However, a new specialty transit VNI is used for all routed VXLAN traffic, called the L3VNI. | |
| 755 | All traffic that needs to be routed will be routed onto the L3VNI, tunneled across the layer 3 Infrastructure, | |
| 756 | routed off the L3VNI to the appropriate VLAN and ultimately bridged to the destination. | |
| 757 | ||
| 758 | 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. | |
| 759 | ||
| 760 | image::images/vxlan-l3-symmetric.svg["vxlan l3 symmetric",align="center"] | |
| 761 | ||
| ccecb4f9 AD |
762 | sysctl.conf tuning |
| 763 | ||
| 764 | ---- | |
| 765 | #enable routing | |
| 766 | net.ipv4.ip_forward=1 | |
| 767 | net.ipv6.conf.all.forwarding=1 | |
| 768 | #disable reverse path filtering | |
| 769 | net.ipv4.conf.default.rp_filter=0 | |
| 770 | net.ipv4.conf.all.rp_filter=0 | |
| 771 | #allow frr to work with vrf (kernel >4.14 bug) | |
| 772 | net.ipv4.tcp_l3mdev_accept=1 | |
| 773 | ---- | |
| 1821b137 AD |
774 | |
| 775 | * node1 | |
| 776 | ||
| 777 | ---- | |
| 778 | auto vrf1 | |
| 779 | iface vrf1 | |
| 780 | vrf-table auto | |
| 781 | ||
| 782 | auto eno1 | |
| 783 | iface eno1 inet manual | |
| 784 | ||
| 785 | auto vmbr0 | |
| 786 | iface vmbr0 inet static | |
| 787 | address 192.168.0.1 | |
| 788 | netmask 255.255.255.0 | |
| 789 | bridge_ports eno1 | |
| 790 | bridge_stp off | |
| 791 | bridge_fd 0 | |
| 792 | ||
| 793 | auto vxlan2 | |
| 794 | iface vxlan2 inet manual | |
| 795 | vxlan-local-tunnelip 192.168.0.1 | |
| 796 | bridge-learning off | |
| 797 | bridge-arp-nd-suppress on | |
| 798 | bridge-unicast-flood off | |
| 799 | bridge-multicast-flood off | |
| 800 | ||
| 801 | auto vmbr2 | |
| 802 | iface vmbr2 inet static | |
| 803 | bridge_ports vxlan2 | |
| 804 | bridge_stp off | |
| 805 | bridge_fd 0 | |
| 806 | address 10.0.2.254 | |
| 807 | netmask 255.255.255.0 | |
| 808 | hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2 | |
| 809 | vrf vrf1 | |
| 810 | ||
| 811 | auto vxlan3 | |
| 812 | iface vxlan3 inet manual | |
| 813 | vxlan-local-tunnelip 192.168.0.1 | |
| 814 | bridge-learning off | |
| 815 | bridge-arp-nd-suppress on | |
| 816 | bridge-unicast-flood off | |
| 817 | bridge-multicast-flood off | |
| 818 | ||
| 819 | auto vmbr3 | |
| 820 | iface vmbr3 inet static | |
| 821 | bridge_ports vxlan3 | |
| 822 | bridge_stp off | |
| 823 | bridge_fd 0 | |
| 824 | address 10.0.3.254 | |
| 825 | netmask 255.255.255.0 | |
| 826 | hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3 | |
| 827 | vrf vrf1 | |
| 828 | ||
| 829 | #interconnect vxlan-vfr l3vni | |
| 830 | auto vxlan4000 | |
| 831 | iface vxlan4000 inet manual | |
| 832 | vxlan-local-tunnelip 192.168.0.1 | |
| 833 | bridge-learning off | |
| 834 | bridge-arp-nd-suppress on | |
| 835 | bridge-unicast-flood off | |
| 836 | bridge-multicast-flood off | |
| 837 | ||
| 838 | ||
| 839 | auto vmbr4000 | |
| 840 | iface vmbr4000 inet manual | |
| 841 | bridge_ports vxlan4000 | |
| 842 | bridge_stp off | |
| 843 | bridge_fd 0 | |
| 844 | hwaddress 44:39:39:FF:40:90 #must be different on each node | |
| 845 | vrf vrf1 | |
| 846 | ---- | |
| 847 | ||
| 848 | frr.conf | |
| 849 | ||
| 850 | ---- | |
| 851 | vrf vrf1 | |
| 852 | vni 4000 | |
| 853 | ! | |
| 854 | router bgp 1234 | |
| 855 | bgp router-id 192.168.0.1 | |
| 856 | no bgp default ipv4-unicast | |
| 857 | coalesce-time 1000 | |
| 858 | neighbor 192.168.0.2 remote-as 1234 | |
| 859 | neighbor 192.168.0.3 remote-as 1234 | |
| 860 | ! | |
| 861 | address-family l2vpn evpn | |
| 862 | neighbor 192.168.0.2 activate | |
| 863 | neighbor 192.168.0.3 activate | |
| 864 | advertise-all-vni | |
| 865 | exit-address-family | |
| 866 | ! | |
| 867 | router bgp 1234 vrf vrf1 | |
| 868 | ! | |
| 869 | bgp router-id 192.168.0.1 | |
| 870 | ! | |
| 871 | address-family ipv4 unicast | |
| 872 | redistribute connected | |
| 873 | exit-address-family | |
| 874 | ! | |
| 875 | address-family l2vpn evpn | |
| 876 | advertise ipv4 unicast | |
| 877 | exit-address-family | |
| 878 | ! | |
| 879 | line vty | |
| 880 | ! | |
| 881 | ---- | |
| 882 | ||
| 883 | ||
| 884 | * node2 | |
| 885 | ||
| 886 | ---- | |
| 887 | auto vrf1 | |
| 888 | iface vrf1 | |
| 889 | vrf-table auto | |
| 890 | ||
| 891 | auto eno1 | |
| 892 | iface eno1 inet manual | |
| 893 | ||
| 894 | auto vmbr0 | |
| 895 | iface vmbr0 inet static | |
| 896 | address 192.168.0.2 | |
| 897 | netmask 255.255.255.0 | |
| 898 | bridge_ports eno1 | |
| 899 | bridge_stp off | |
| 900 | bridge_fd 0 | |
| 901 | ||
| 902 | auto vxlan2 | |
| 903 | iface vxlan2 inet manual | |
| 904 | vxlan-local-tunnelip 192.168.0.2 | |
| 905 | bridge-learning off | |
| 906 | bridge-arp-nd-suppress on | |
| 907 | bridge-unicast-flood off | |
| 908 | bridge-multicast-flood off | |
| 909 | ||
| 910 | auto vmbr2 | |
| 911 | iface vmbr2 inet static | |
| 912 | bridge_ports vxlan2 | |
| 913 | bridge_stp off | |
| 914 | bridge_fd 0 | |
| 915 | address 10.0.2.254 | |
| 916 | netmask 255.255.255.0 | |
| 917 | hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2 | |
| 918 | vrf vrf1 | |
| 919 | ||
| 920 | auto vxlan3 | |
| 921 | iface vxlan3 inet manual | |
| 922 | vxlan-local-tunnelip 192.168.0.2 | |
| 923 | bridge-learning off | |
| 924 | bridge-arp-nd-suppress on | |
| 925 | bridge-unicast-flood off | |
| 926 | bridge-multicast-flood off | |
| 927 | ||
| 928 | auto vmbr3 | |
| 929 | iface vmbr3 inet static | |
| 930 | bridge_ports vxlan3 | |
| 931 | bridge_stp off | |
| 932 | bridge_fd 0 | |
| 933 | address 10.0.3.254 | |
| 934 | netmask 255.255.255.0 | |
| 935 | hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3 | |
| 936 | vrf vrf1 | |
| 937 | ||
| 938 | #interconnect vxlan-vfr l3vni | |
| 939 | auto vxlan4000 | |
| 940 | iface vxlan4000 inet manual | |
| 941 | vxlan-local-tunnelip 192.168.0.2 | |
| 942 | bridge-learning off | |
| 943 | bridge-arp-nd-suppress on | |
| 944 | bridge-unicast-flood off | |
| 945 | bridge-multicast-flood off | |
| 946 | ||
| 947 | ||
| 948 | auto vmbr4000 | |
| 949 | iface vmbr4000 inet manual | |
| 950 | bridge_ports vxlan4000 | |
| 951 | bridge_stp off | |
| 952 | bridge_fd 0 | |
| 953 | hwaddress 44:39:39:FF:40:91 #must be different on each node | |
| 954 | vrf vrf1 | |
| 955 | ---- | |
| 956 | ||
| 957 | ||
| 958 | frr.conf | |
| 959 | ||
| 960 | ---- | |
| 961 | vrf vrf1 | |
| 962 | vni 4000 | |
| 963 | ! | |
| 964 | router bgp 1234 | |
| 965 | bgp router-id 192.168.0.2 | |
| 966 | no bgp default ipv4-unicast | |
| 967 | coalesce-time 1000 | |
| 968 | neighbor 192.168.0.1 remote-as 1234 | |
| 969 | neighbor 192.168.0.3 remote-as 1234 | |
| 970 | ! | |
| 971 | address-family l2vpn evpn | |
| 972 | neighbor 192.168.0.1 activate | |
| 973 | neighbor 192.168.0.3 activate | |
| 974 | advertise-all-vni | |
| 975 | exit-address-family | |
| 976 | ! | |
| 977 | router bgp 1234 vrf vrf1 | |
| 978 | ! | |
| 979 | bgp router-id 192.168.0.2 | |
| 980 | ! | |
| 981 | address-family ipv4 unicast | |
| 982 | redistribute connected | |
| 983 | exit-address-family | |
| 984 | ! | |
| 985 | address-family l2vpn evpn | |
| 986 | advertise ipv4 unicast | |
| 987 | exit-address-family | |
| 988 | ! | |
| 989 | line vty | |
| 990 | ! | |
| 991 | ---- | |
| 992 | ||
| 993 | ||
| 994 | * node3 | |
| 995 | ||
| 996 | ---- | |
| 997 | auto vrf1 | |
| 998 | iface vrf1 | |
| 999 | vrf-table auto | |
| 1000 | ||
| 1001 | auto eno1 | |
| 1002 | iface eno1 inet manual | |
| 1003 | ||
| 1004 | auto vmbr0 | |
| 1005 | iface vmbr0 inet static | |
| 1006 | address 192.168.0.3 | |
| 1007 | netmask 255.255.255.0 | |
| 1008 | bridge_ports eno1 | |
| 1009 | bridge_stp off | |
| 1010 | bridge_fd 0 | |
| 1011 | ||
| 1012 | auto vxlan2 | |
| 1013 | iface vxlan2 inet manual | |
| 1014 | vxlan-local-tunnelip 192.168.0.3 | |
| 1015 | bridge-learning off | |
| 1016 | bridge-arp-nd-suppress on | |
| 1017 | bridge-unicast-flood off | |
| 1018 | bridge-multicast-flood off | |
| 1019 | ||
| 1020 | auto vmbr2 | |
| 1021 | iface vmbr2 inet static | |
| 1022 | bridge_ports vxlan2 | |
| 1023 | bridge_stp off | |
| 1024 | bridge_fd 0 | |
| 1025 | address 10.0.2.254 | |
| 1026 | netmask 255.255.255.0 | |
| 1027 | hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr2 | |
| 1028 | vrf vrf1 | |
| 1029 | ||
| 1030 | auto vxlan3 | |
| 1031 | iface vxlan3 inet manual | |
| 1032 | vxlan-local-tunnelip 192.168.0.3 | |
| 1033 | bridge-learning off | |
| 1034 | bridge-arp-nd-suppress on | |
| 1035 | bridge-unicast-flood off | |
| 1036 | bridge-multicast-flood off | |
| 1037 | ||
| 1038 | auto vmbr3 | |
| 1039 | iface vmbr3 inet static | |
| 1040 | bridge_ports vxlan3 | |
| 1041 | bridge_stp off | |
| 1042 | bridge_fd 0 | |
| 1043 | address 10.0.3.254 | |
| 1044 | netmask 255.255.255.0 | |
| 1045 | hwaddress 44:39:39:FF:40:94 #must be same on each node vmbr3 | |
| 1046 | vrf vrf1 | |
| 1047 | ||
| 1048 | #interconnect vxlan-vfr l3vni | |
| 1049 | auto vxlan4000 | |
| 1050 | iface vxlan4000 inet manual | |
| 1051 | vxlan-local-tunnelip 192.168.0.3 | |
| 1052 | bridge-learning off | |
| 1053 | bridge-arp-nd-suppress on | |
| 1054 | bridge-unicast-flood off | |
| 1055 | bridge-multicast-flood off | |
| 1056 | ||
| 1057 | ||
| 1058 | auto vmbr4000 | |
| 1059 | iface vmbr4000 inet manual | |
| 1060 | bridge_ports vxlan4000 | |
| 1061 | bridge_stp off | |
| 1062 | bridge_fd 0 | |
| 1063 | hwaddress 44:39:39:FF:40:92 #must be different on each node | |
| 1064 | vrf vrf1 | |
| 1065 | ---- | |
| 1066 | ||
| 1067 | ||
| 1068 | frr.conf | |
| 1069 | ||
| 1070 | ---- | |
| 1071 | vrf vrf1 | |
| 1072 | vni 4000 | |
| 1073 | ! | |
| 1074 | router bgp 1234 | |
| 1075 | bgp router-id 192.168.0.3 | |
| 1076 | no bgp default ipv4-unicast | |
| 1077 | coalesce-time 1000 | |
| 1078 | neighbor 192.168.0.1 remote-as 1234 | |
| 1079 | neighbor 192.168.0.2 remote-as 1234 | |
| 1080 | ! | |
| 1081 | address-family l2vpn evpn | |
| 1082 | neighbor 192.168.0.1 activate | |
| 1083 | neighbor 192.168.0.2 activate | |
| 1084 | advertise-all-vni | |
| 1085 | exit-address-family | |
| 1086 | ! | |
| 1087 | router bgp 1234 vrf vrf1 | |
| 1088 | ! | |
| 1089 | bgp router-id 192.168.0.3 | |
| 1090 | ! | |
| 1091 | address-family ipv4 unicast | |
| 1092 | redistribute connected | |
| 1093 | exit-address-family | |
| 1094 | ! | |
| 1095 | address-family l2vpn evpn | |
| 1096 | advertise ipv4 unicast | |
| 1097 | exit-address-family | |
| 1098 | ! | |
| 1099 | line vty | |
| 1100 | ! | |
| 1101 | ---- |