Extreme SLX-OS Layer 3 Routing Configuration Guide, 20.6.1

Configure the TCAM profile to support L3GW. Complete the steps in Configure the TCAM Profile for Layer 3 Gateway.

Create VLANs to be extended on the tunnel.

vlan 1-4

Configure an EVPN instance.

evpn r1
 route-target both auto
 rd auto
 vlan add 2-4

Configure BGP.

router bgp
  local-as 100
    neighbor 98.0.0.1 remote-as 100
  address-family ipv4 unicast
  !
  address-family ipv6 unicast
  !
  address-family l2vpn evpn
    graceful-restart
    neighbor 98.0.0.1 encapsulation vxlan
    neighbor 98.0.0.1 activate

Configure a loopback interface.

interface Loopback 1
 no shutdown
 ip ospf area 0
 ip address 1.2.3.4/32

Configure a tunnel interface.

interface Ethernet 0/4
 ip ospf area 0
 ip proxy-arp
 ip address 98.0.0.2/24
 no shutdown

Configure the overlay gateway.

overlay-gateway g1
type layer2-extension
ip interface Loopback 1
  map vni auto
activate

Configure a VRF.

vrf red
rd 5:50
evpn irb ve 100 <peer-gateway> <--Identifies the L3-VNI
address-family ipv4 unicast
  route-target export 5:100 evpn
  route-target import 5:100 evpn
!
address-family ipv6 unicast
  route-target export 5:100 evpn
  route-target import 5:100 evpn

Configure the L3-VNI Integrated Routing and Bridging (IRB) instance. (An IP address is not required.)

vlan 100  <-- The L3-VNI is a VLAN as a result of auto map mode
router-interface Ve 100

Alternatively, configure the L3-VNI IRB by using a BD. (The L3-VNI is 4K+BD-ID as a result of auto mapping.)

bridge-domain 500 p2mp
 router-interface ve 100
!
interface Ve 100
vrf forwarding red
no shutdown

Configuring an EVPN Layer 3 VNI