docs/user-guide/bgpcep-guide/bgp/bgp-user-guide-evpn-family.rst

   1 .. _bgp-user-guide-evpn-family:
   2
   3 EVPN Family
   4 ===========
   5 The BGP MPLS-Based Ethernet VPN (BGP EVPN) Multiprotocol extension can be used to distribute Ethernet L2VPN service related routes in order to support a concept of MAC routing.
   6 A major use-case for BGP EVPN is data-center interconnection (DCI), where advantage of BGP EVPN are MAC/IP address advertising across MPLS network, Multihoming functionality including Fast Convergence, Split Horizon and Aliasing support, VM (MAC) Mobility, support Multicast and Broadcast traffic.
   7 In addition to MPLS, IP tunnelling encapsulation techniques like VXLAN, NVGRE, MPLSoGRE and others can be used for packet transportation.
   8 Also, Provider Backbone Bridging (PBB) can be combined with EVPN in order to reduce a number of MAC Advertisement routes.
   9
  10 .. contents:: Contents
  11    :depth: 2
  12    :local:
  13
  14 Configuration
  15 ^^^^^^^^^^^^^
  16 This section shows a way to enable EVPN family in BGP speaker and peer configuration.
  17
  18 BGP Speaker
  19 '''''''''''
  20 To enable EVPN support in BGP plugin, first configure BGP speaker instance:
  21
  22 **URL:** ``/restconf/config/openconfig-network-instance:network-instances/network-instance/global-bgp/openconfig-network-instance:protocols``
  23
  24 **Method:** ``POST``
  25
  26 **Content-Type:** ``application/xml``
  27
  28 **Request Body:**
  29
  30 .. code-block:: xml
  31
  32    <protocol xmlns="http://openconfig.net/yang/network-instance">
  33        <name>bgp-example</name>
  34        <identifier xmlns:x="http://openconfig.net/yang/policy-types">x:BGP</identifier>
  35        <bgp xmlns="urn:opendaylight:params:xml:ns:yang:bgp:openconfig-extensions">
  36            <global>
  37                <config>
  38                    <router-id>192.0.2.2</router-id>
  39                    <as>65000</as>
  40                </config>
  41                <afi-safis>
  42                    <afi-safi>
  43                        <afi-safi-name xmlns:x="http://openconfig.net/yang/bgp-types">x:L2VPN-EVPN</afi-safi-name>
  44                    </afi-safi>
  45                </afi-safis>
  46            </global>
  47        </bgp>
  48    </protocol>
  49
  50 BGP Peer
  51 ''''''''
  52 Here is an example for BGP peer configuration with enabled EVPN family.
  53
  54 **URL:** ``/restconf/config/openconfig-network-instance:network-instances/network-instance/global-bgp/openconfig-network-instance:protocols/protocol/openconfig-policy-types:BGP/bgp-example/bgp/neighbors``
  55
  56 **Method:** ``POST``
  57
  58 **Content-Type:** ``application/xml``
  59
  60 **Request Body:**
  61
  62 .. code-block:: xml
  63
  64    <neighbor xmlns="urn:opendaylight:params:xml:ns:yang:bgp:openconfig-extensions">
  65        <neighbor-address>192.0.2.1</neighbor-address>
  66        <afi-safis>
  67            <afi-safi>
  68                <afi-safi-name xmlns:x="http://openconfig.net/yang/bgp-types">x:L2VPN-EVPN</afi-safi-name>
  69            </afi-safi>
  70        </afi-safis>
  71    </neighbor>
  72
  73 EVPN Route API
  74 ^^^^^^^^^^^^^^
  75 Following tree illustrate the BGP EVPN route structure.
  76
  77 .. code-block:: console
  78
  79    :(evpn-routes-case)
  80       +--ro evpn-routes
  81          +--ro evpn-route* [route-key path-id]
  82             +--ro route-key                     string
  83             +--ro path-id                       path-id
  84             +--ro (evpn-choice)
  85             |  +--:(ethernet-a-d-route-case)
  86             |  |  +--ro ethernet-a-d-route
  87             |  |     +--ro (esi)
  88             |  |     |  +--:(arbitrary-case)
  89             |  |     |  |  +--ro arbitrary
  90             |  |     |  |     +--ro arbitrary    binary
  91             |  |     |  +--:(lacp-auto-generated-case)
  92             |  |     |  |  +--ro lacp-auto-generated
  93             |  |     |  |     +--ro ce-lacp-mac-address    yang:mac-address
  94             |  |     |  |     +--ro ce-lacp-port-key       uint16
  95             |  |     |  +--:(lan-auto-generated-case)
  96             |  |     |  |  +--ro lan-auto-generated
  97             |  |     |  |     +--ro root-bridge-mac-address    yang:mac-address
  98             |  |     |  |     +--ro root-bridge-priority       uint16
  99             |  |     |  +--:(mac-auto-generated-case)
 100             |  |     |  |  +--ro mac-auto-generated
 101             |  |     |  |     +--ro system-mac-address     yang:mac-address
 102             |  |     |  |     +--ro local-discriminator    uint24
 103             |  |     |  +--:(router-id-generated-case)
 104             |  |     |  |  +--ro router-id-generated
 105             |  |     |  |     +--ro router-id              inet:ipv4-address
 106             |  |     |  |     +--ro local-discriminator    uint32
 107             |  |     |  +--:(as-generated-case)
 108             |  |     |     +--ro as-generated
 109             |  |     |        +--ro as                     inet:as-number
 110             |  |     |        +--ro local-discriminator    uint32
 111             |  |     +--ro ethernet-tag-id
 112             |  |     |  +--ro vlan-id    uint32
 113             |  |     +--ro mpls-label             netc:mpls-label
 114             |  +--:(mac-ip-adv-route-case)
 115             |  |  +--ro mac-ip-adv-route
 116             |  |     +--ro (esi)
 117             |  |     |  +--:(arbitrary-case)
 118             |  |     |  |  +--ro arbitrary
 119             |  |     |  |     +--ro arbitrary    binary
 120             |  |     |  +--:(lacp-auto-generated-case)
 121             |  |     |  |  +--ro lacp-auto-generated
 122             |  |     |  |     +--ro ce-lacp-mac-address    yang:mac-address
 123             |  |     |  |     +--ro ce-lacp-port-key       uint16
 124             |  |     |  +--:(lan-auto-generated-case)
 125             |  |     |  |  +--ro lan-auto-generated
 126             |  |     |  |     +--ro root-bridge-mac-address    yang:mac-address
 127             |  |     |  |     +--ro root-bridge-priority       uint16
 128             |  |     |  +--:(mac-auto-generated-case)
 129             |  |     |  |  +--ro mac-auto-generated
 130             |  |     |  |     +--ro system-mac-address     yang:mac-address
 131             |  |     |  |     +--ro local-discriminator    uint24
 132             |  |     |  +--:(router-id-generated-case)
 133             |  |     |  |  +--ro router-id-generated
 134             |  |     |  |     +--ro router-id              inet:ipv4-address
 135             |  |     |  |     +--ro local-discriminator    uint32
 136             |  |     |  +--:(as-generated-case)
 137             |  |     |     +--ro as-generated
 138             |  |     |        +--ro as                     inet:as-number
 139             |  |     |        +--ro local-discriminator    uint32
 140             |  |     +--ro ethernet-tag-id
 141             |  |     |  +--ro vlan-id    uint32
 142             |  |     +--ro mac-address            yang:mac-address
 143             |  |     +--ro ip-address?            inet:ip-address
 144             |  |     +--ro mpls-label1            netc:mpls-label
 145             |  |     +--ro mpls-label2?           netc:mpls-label
 146             |  +--:(inc-multi-ethernet-tag-res-case)
 147             |  |  +--ro inc-multi-ethernet-tag-res
 148             |  |     +--ro ethernet-tag-id
 149             |  |     |  +--ro vlan-id    uint32
 150             |  |     +--ro orig-route-ip?     inet:ip-address
 151             |  +--:(es-route-case)
 152             |     +--ro es-route
 153             |        +--ro (esi)
 154             |        |  +--:(arbitrary-case)
 155             |        |  |  +--ro arbitrary
 156             |        |  |     +--ro arbitrary    binary
 157             |        |  +--:(lacp-auto-generated-case)
 158             |        |  |  +--ro lacp-auto-generated
 159             |        |  |     +--ro ce-lacp-mac-address    yang:mac-address
 160             |        |  |     +--ro ce-lacp-port-key       uint16
 161             |        |  +--:(lan-auto-generated-case)
 162             |        |  |  +--ro lan-auto-generated
 163             |        |  |     +--ro root-bridge-mac-address    yang:mac-address
 164             |        |  |     +--ro root-bridge-priority       uint16
 165             |        |  +--:(mac-auto-generated-case)
 166             |        |  |  +--ro mac-auto-generated
 167             |        |  |     +--ro system-mac-address     yang:mac-address
 168             |        |  |     +--ro local-discriminator    uint24
 169             |        |  +--:(router-id-generated-case)
 170             |        |  |  +--ro router-id-generated
 171             |        |  |     +--ro router-id              inet:ipv4-address
 172             |        |  |     +--ro local-discriminator    uint32
 173             |        |  +--:(as-generated-case)
 174             |        |     +--ro as-generated
 175             |        |        +--ro as                     inet:as-number
 176             |        |        +--ro local-discriminator    uint32
 177             |        +--ro orig-route-ip          inet:ip-address
 178             +--ro route-distinguisher           bgp-t:route-distinguisher
 179             +--ro attributes
 180                +--ro extended-communities*
 181                |  +--ro transitive?                              boolean
 182                |  +--ro (extended-community)?
 183                |     +--:(encapsulation-case)
 184                |     |  +--ro encapsulation-extended-community
 185                |     |     +--ro tunnel-type    encapsulation-tunnel-type
 186                |     +--:(esi-label-extended-community-case)
 187                |     |  +--ro esi-label-extended-community
 188                |     |     +--ro single-active-mode?   boolean
 189                |     |     +--ro esi-label             netc:mpls-label
 190                |     +--:(es-import-route-extended-community-case)
 191                |     |  +--ro es-import-route-extended-community
 192                |     |     +--ro es-import    yang:mac-address
 193                |     +--:(mac-mobility-extended-community-case)
 194                |     |  +--ro mac-mobility-extended-community
 195                |     |     +--ro static?       boolean
 196                |     |     +--ro seq-number    uint32
 197                |     +--:(default-gateway-extended-community-case)
 198                |     |  +--ro default-gateway-extended-community!
 199                |     +--:(layer-2-attributes-extended-community-case)
 200                |        +--ro layer-2-attributes-extended-community
 201                |           +--ro primary-pe?     boolean
 202                |           +--ro backup-pe?      boolean
 203                |           +--ro control-word?   boolean
 204                |           +--ro l2-mtu          uint16
 205                +--ro pmsi-tunnel!
 206                   +--ro leaf-information-required    boolean
 207                   +--ro mpls-label?                  netc:mpls-label
 208                   +--ro (tunnel-identifier)?
 209                      +--:(rsvp-te-p2mp-lsp)
 210                      |  +--ro rsvp-te-p2mp-lps
 211                      |     +--ro p2mp-id               uint32
 212                      |     +--ro tunnel-id             uint16
 213                      |     +--ro extended-tunnel-id    inet:ip-address
 214                      +--:(mldp-p2mp-lsp)
 215                      |  +--ro mldp-p2mp-lsp
 216                      |     +--ro address-family       identityref
 217                      |     +--ro root-node-address    inet:ip-address
 218                      |     +--ro opaque-value*
 219                      |        +--ro opaque-type             uint8
 220                      |        +--ro opaque-extended-type?   uint16
 221                      |        +--ro opaque                  yang:hex-string
 222                      +--:(pim-ssm-tree)
 223                      |  +--ro pim-ssm-tree
 224                      |     +--ro p-address            inet:ip-address
 225                      |     +--ro p-multicast-group    inet:ip-address
 226                      +--:(pim-sm-tree)
 227                      |  +--ro pim-sm-tree
 228                      |     +--ro p-address            inet:ip-address
 229                      |     +--ro p-multicast-group    inet:ip-address
 230                      +--:(bidir-pim-tree)
 231                      |  +--ro bidir-pim-tree
 232                      |     +--ro p-address            inet:ip-address
 233                      |     +--ro p-multicast-group    inet:ip-address
 234                      +--:(ingress-replication)
 235                      |  +--ro ingress-replication
 236                      |     +--ro receiving-endpoint-address?   inet:ip-address
 237                      +--:(mldp-mp2mp-lsp)
 238                         +--ro mldp-mp2mp-lsp
 239                            +--ro opaque-type             uint8
 240                            +--ro opaque-extended-type?   uint16
 241                            +--ro opaque
 242                      ...
 243
 244 Usage
 245 ^^^^^
 246 The L2VPN EVPN table in an instance of the speaker's Loc-RIB can be verified via REST:
 247
 248 **URL:** ``/restconf/operational/bgp-rib:bgp-rib/rib/bgp-example/loc-rib/tables/odl-bgp-evpn:l2vpn-address-family/odl-bgp-evpn:evpn-subsequent-address-family/evpn-routes``
 249
 250 **Method:** ``GET``
 251
 252 **Response Body:**
 253
 254 .. code-block:: xml
 255
 256    <evpn-routes xmlns="urn:opendaylight:params:xml:ns:yang:bgp-evpn">
 257       <evpn-route>
 258          <route-key>AxEAAcCoZAED6AAAAQAgwKhkAQ==</route-key>
 259          <path-id>0</path-id>
 260          <route-distinguisher>192.168.100.1:1000</route-distinguisher>
 261          <inc-multi-ethernet-tag-res>
 262             <ethernet-tag-id>
 263                <vlan-id>256</vlan-id>
 264             </ethernet-tag-id>
 265             <orig-route-ip>192.168.100.1</orig-route-ip>
 266          </inc-multi-ethernet-tag-res>
 267          <attributes>
 268             <ipv4-next-hop>
 269                <global>172.23.29.104</global>
 270             </ipv4-next-hop>
 271             <as-path/>
 272             <origin>
 273                <value>igp</value>
 274             </origin>
 275             <extended-communities>
 276                <extended-communities>
 277                    <transitive>true</transitive>
 278                    <route-target-extended-community>
 279                        <global-administrator>65504</global-administrator>
 280                        <local-administrator>AAAD6A==</local-administrator>
 281                    </route-target-extended-community>
 282                </extended-communities>
 283             </extended-communities>
 284             <pmsi-tunnel>
 285                 <leaf-information-required>true</leaf-information-required>
 286                 <mpls-label>20024</mpls-label>
 287                 <ingress-replication>
 288                     <receiving-endpoint-address>192.168.100.1</receiving-endpoint-address>
 289                 </ingress-replication>
 290             </pmsi-tunnel>
 291          </attributes>
 292       </evpn-route>
 293    </evpn-routes>
 294
 295 Programming
 296 ^^^^^^^^^^^
 297 This examples show how to originate and remove EVPN routes via programmable RIB.
 298 There are four different types of EVPN routes, and several extended communities.
 299 Routes can be used for variety of use-cases supported by BGP/MPLS EVPN, PBB EVPN and NVO EVPN.
 300 Make sure the *Application Peer* is configured first.
 301
 302 **URL:** ``/restconf/config/bgp-rib:application-rib/10.25.1.9/tables/odl-bgp-evpn:l2vpn-address-family/odl-bgp-evpn:evpn-subsequent-address-family/odl-bgp-evpn:evpn-routes``
 303
 304 **Method:** ``POST``
 305
 306 **Content-Type:** ``application/xml``
 307
 308 **Request Body:**
 309
 310 .. code-block:: xml
 311    :linenos:
 312    :emphasize-lines: 4,5,15
 313
 314    <evpn-route xmlns="urn:opendaylight:params:xml:ns:yang:bgp-evpn">
 315        <route-key>evpn</route-key>
 316        <path-id>0</path-id>
 317        <route-distinguisher>172.12.123.3:200</route-distinguisher>
 318        ....
 319        <attributes>
 320            <ipv4-next-hop>
 321                <global>199.20.166.41</global>
 322            </ipv4-next-hop>
 323            <as-path/>
 324            <origin>
 325                <value>igp</value>
 326            </origin>
 327            <extended-communities>
 328            ....
 329            </extended-communities>
 330        </attributes>
 331    </evpn-route>
 332
 333 @line 4: Route Distinguisher (RD) - set to RD of the MAC-VRF advertising the NLRI, recommended format *<IP>:<VLAN_ID>*
 334
 335 @line 5: One of the EVPN route must be set here.
 336
 337 @line 15: In some cases, specific extended community presence is required. The route may carry one or more Route Target attributes.
 338
 339 -----
 340
 341 EVPN Routes
 342 ^^^^^^^^^^^
 343
 344 * **Ethernet AD per ESI**
 345    .. code-block:: xml
 346
 347       <ethernet-a-d-route>
 348           <mpls-label>0</mpls-label>
 349           <ethernet-tag-id>
 350               <vlan-id>4294967295</vlan-id>
 351           </ethernet-tag-id>
 352           <arbitrary>
 353               <arbitrary>AAAAAAAAAAAA</arbitrary>
 354           </arbitrary>
 355       </ethernet-a-d-route>
 356
 357 * **Ethernet AD per EVI**
 358    .. code-block:: xml
 359
 360       <ethernet-a-d-route>
 361           <mpls-label>24001</mpls-label>
 362           <ethernet-tag-id>
 363               <vlan-id>2200</vlan-id>
 364           </ethernet-tag-id>
 365           <arbitrary>
 366               <arbitrary>AAAAAAAAAAAA</arbitrary>
 367           </arbitrary>
 368       </ethernet-a-d-route>
 369
 370 * **MAC/IP Advertisement**
 371    .. code-block:: xml
 372
 373       <mac-ip-adv-route>
 374           <arbitrary>
 375               <arbitrary>AAAAAAAAAAAA</arbitrary>
 376           </arbitrary>
 377           <ethernet-tag-id>
 378               <vlan-id>2100</vlan-id>
 379           </ethernet-tag-id>
 380           <mac-address>f2:0c:dd:80:9f:f7</mac-address>
 381           <ip-address>10.0.1.12</ip-address>
 382           <mpls-label1>299776</mpls-label1>
 383       </mac-ip-adv-route>
 384
 385
 386 * **Inclusive Multicast Ethernet Tag**
 387    .. code-block:: xml
 388
 389       <inc-multi-ethernet-tag-res>
 390           <ethernet-tag-id>
 391               <vlan-id>2100</vlan-id>
 392           </ethernet-tag-id>
 393           <orig-route-ip>43.43.43.43</orig-route-ip>
 394       </inc-multi-ethernet-tag-res>
 395
 396 * **Ethernet Segment**
 397    .. code-block:: xml
 398
 399       <es-route>
 400           <orig-route-ip>43.43.43.43</orig-route-ip>
 401           <arbitrary>
 402               <arbitrary>AAAAAAAAAAAA</arbitrary>
 403           </arbitrary>
 404       </es-route>
 405
 406 **EVPN Ethernet Segment Identifier (ESI):**
 407
 408 * **Type 0**
 409    Indicates an arbitrary 9-octet ESI.
 410
 411    .. code-block:: xml
 412
 413       <arbitrary>
 414           <arbitrary>AAAAAAAAAAAA</arbitrary>
 415       </arbitrary>
 416
 417 * **Type 1**
 418    IEEE 802.1AX LACP is used.
 419
 420    .. code-block:: xml
 421
 422       <lacp-auto-generated>
 423           <ce-lacp-mac-address>f2:0c:dd:80:9f:f7</ce-lacp-mac-address>
 424           <ce-lacp-port-key>22</ce-lacp-port-key>
 425       </lacp-auto-generated>
 426
 427 * **Type 2**
 428    Indirectly connected hosts via a bridged LAN.
 429
 430    .. code-block:: xml
 431
 432       <lan-auto-generated>
 433           <root-bridge-mac-address>f2:0c:dd:80:9f:f7</root-bridge-mac-address>
 434           <root-bridge-priority>20</root-bridge-priority>
 435       </lan-auto-generated>
 436
 437 * **Type 3**
 438    MAC-based ESI.
 439
 440    .. code-block:: xml
 441
 442       <mac-auto-generated>
 443           <system-mac-address>f2:0c:dd:80:9f:f7</system-mac-address>
 444           <local-discriminator>2000</local-discriminator>
 445       </mac-auto-generated>
 446
 447 * **Type 4**
 448    Router-ID ESI
 449
 450    .. code-block:: xml
 451
 452       <router-id-generated>
 453           <router-id>43.43.43.43</router-id>
 454           <local-discriminator>2000</local-discriminator>
 455       </router-id-generated>
 456
 457 * **Type 5**
 458    AS-based ESI
 459
 460    .. code-block:: xml
 461
 462       <as-generated>
 463           <as>16843009</as>
 464           <local-discriminator>2000</local-discriminator>
 465       </as-generated>
 466
 467 **Attributes:**
 468
 469 .. include:: bgp-user-guide-pmsi-attribute.rst
 470
 471 **Extended Communities:**
 472
 473 * **ESI Label Extended Community**
 474    .. code-block:: xml
 475
 476       <extended-communities>
 477           <transitive>true</transitive>
 478           <esi-label-extended-community>
 479               <single-active-mode>false</single-active-mode>
 480               <esi-label>24001</esi-label>
 481           </esi-label-extended-community>
 482       </extended-communities>
 483
 484 * **ES-Import Route Target**
 485    .. code-block:: xml
 486
 487       <extended-communities>
 488           <transitive>true</transitive>
 489           <es-import-route-extended-community>
 490               <es-import>f2:0c:dd:80:9f:f7</es-import>
 491           </es-import-route-extended-community>
 492       </extended-communities>
 493
 494 * **MAC Mobility Extended Community**
 495    .. code-block:: xml
 496
 497       <extended-communities>
 498           <transitive>true</transitive>
 499           <mac-mobility-extended-community>
 500               <static>true</static>
 501               <seq-number>200</seq-number>
 502           </mac-mobility-extended-community>
 503       </extended-communities>
 504
 505 * **Default Gateway Extended Community**
 506    .. code-block:: xml
 507
 508       <extended-communities>
 509           <transitive>true</transitive>
 510           <default-gateway-extended-community>
 511           </default-gateway-extended-community>
 512       </extended-communities>
 513
 514 * **EVPN Layer 2 attributes extended community**
 515    .. code-block:: xml
 516
 517       <extended-communities>
 518           <transitive>false</transitive>
 519           <layer-2-attributes-extended-community>
 520               <primary-pe>true</primary-pe>
 521               <backup-pe>true</backup-pe>
 522               <control-word >true</control-word>
 523               <l2-mtu>200</l2-mtu>
 524           </layer-2-attributes-extended-community>
 525       </extended-communities>
 526
 527 * **BGP Encapsulation extended community**
 528    .. code-block:: xml
 529       :linenos:
 530       :emphasize-lines: 4
 531
 532       <extended-communities>
 533           <transitive>false</transitive>
 534           <encapsulation-extended-community>
 535               <tunnel-type>vxlan</tunnel-type>
 536           </encapsulation-extended-community>
 537       </extended-communities>
 538
 539    @line 4: `full list of tunnel types <http://www.iana.org/assignments/bgp-parameters/bgp-parameters.xhtml#tunnel-types>`_
 540
 541 -----
 542
 543 To remove the route added above, following request can be used:
 544
 545 **URL:** ``/restconf/config/bgp-rib:application-rib/10.25.1.9/tables/bgp-types:ipv4-address-family/odl-bgp-evpn:l2vpn-address-family/odl-bgp-evpn:evpn-subsequent-address-family/odl-bgp-evpn:evpn-routes/evpn-route/evpn/0``
 546
 547 **Method:** ``DELETE``
 548
 549 -----
 550
 551 .. table:: EVPN Routes Usage.
 552
 553    +--------------------------------------+-----------------------------------------------------+-------------------------------------------+
 554    | EVN Route Type                       | Extended Communities                                | Usage                                     |
 555    +======================================+=====================================================+===========================================+
 556    | **Ethernet Auto-discovery**          | ESI Label, BGP EncapsulationEVPN Layer 2 attributes | Fast Convergence, Split Horizon, Aliasing |
 557    +--------------------------------------+-----------------------------------------------------+-------------------------------------------+
 558    | **MAC/IP Advertisement**             | BGP Encapsulation, MAC Mobility, Default Gateway    | MAC address reachability                  |
 559    +--------------------------------------+-----------------------------------------------------+-------------------------------------------+
 560    | **Inclusive Multicast Ethernet Tag** | PMSI Tunnel, BGP Encapsulation                      | Handling of Multi-destination traffic     |
 561    +--------------------------------------+-----------------------------------------------------+-------------------------------------------+
 562    | **Ethernet Segment**                 | BGP Encapsulation, ES-Import Route Target           | Designated Forwarder Election             |
 563    +--------------------------------------+-----------------------------------------------------+-------------------------------------------+
 564
 565 References
 566 ^^^^^^^^^^
 567 * `BGP MPLS-Based Ethernet VPN <https://tools.ietf.org/html/rfc7432>`_
 568 * `Provider Backbone Bridging Combined with Ethernet VPN <https://tools.ietf.org/html/rfc7623>`_
 569 * `VPWS support in EVPN <https://tools.ietf.org/html/draft-ietf-bess-evpn-vpws-07>`_
 570 * `A Network Virtualization Overlay Solution using EVPN <https://tools.ietf.org/html/draft-ietf-bess-evpn-overlay-04>`_
 571 * `Interconnect Solution for EVPN Overlay networks <https://tools.ietf.org/html/draft-ietf-bess-dci-evpn-overlay-04>`_
 572 * `Usage and applicability of BGP MPLS based Ethernet VPN <https://tools.ietf.org/html/draft-ietf-bess-evpn-usage-03>`_