Configuring an EVPN Layer 3 VNI for LVTEP

This example configures an L3-VNI to support a VRF.

1. Configure the TCAM profile to support L3GW. Complete the steps in Configure the TCAM Profile for Layer 3 Gateway.
2. Instantiate VLANs to be extended on the tunnel.
   

   vlan 1-4

3. Configure an EVPN instance.
   

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

4. Configure BGP.
   

   router bgp
    local-as 100
     neighbor 3.3.3.3 remote-as 101 <-- The VXLAN peer
    address-family ipv4 unicast
    !
    address-family ipv6 unicast
    !
    address-family l2vpn evpn
     graceful-restart
     neighbor 3.3.3.3 encapsulation vxlan <-- The VXLAN peer
     neighbor 3.3.3.3 activate
     !

5. Configure a loopback interface for BGP neighborship.
   

   interface Loopback 1
    no shutdown
    ip ospf area 0
    ip address 40.40.100.40/32

6. Configure a loopback interface for VXLAN. (MCT peers must have the same address.)
   

   interface Loopback 2
    no shutdown
    ip ospf area 0
    ip address 2.2.2.2/32

7. Configure a tunnel interface.
   

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

8. Configure the overlay gateway.
   

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

9. Configure the MCT cluster.
   

   cluster c1 1
    peer-interface Ve 45
    peer 40.40.100.50
    deploy
   

10. Configure the 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 5:102 evpn  <-- From the VXLAN peer
    !
    address-family ipv6 unicast 
    

11. Configure the L3-VNI IRB. (An IP address is not needed.)
    

    vlan 100
     router-interface Ve 100
    !
    interface Ve 100
     vrf forwarding red
     no shutdown