Table 1: Configuring Spine Switch, Border VTEP and PE Device 1 for Enabling Layer 3 External Connectivity with MPLS Layer 3 VPN through iBGP Configuring EVPN VXLAN External Connectivity Example: Enabling Layer 3 External Connectivity with MPLS Layer 3 VPN through iBGP Spine Switch Border VTEP PE Device 1 Spine switch# show running-config _ hostname Spine switch _ ! interface Loopback0 ip address 172.16.255.1 255.255.255.255 ip ospf 1 area 0 ip pim sparse-mode ! interface Loopback1 ip address 172.16.254.1 255.255.255.255 ip pim sparse-mode ip ospf 1 area 0 ! interface Loopback2 ip address 172.16.255.255 255.255.255.255 ip pim sparse-mode ip ospf 1 area 0 !
interface TenGigabitEthernet1/0/2 no switchport ip address 172.16.14.1 255.255.255.0 ip pim sparse-mode ip ospf network point-to-point ip ospf 1 area 0 ! interface TenGigabitEthernet1/0/4 no switchport ip address 172.16.16.1 255.255.255.0 ip pim sparse-mode ip ospf network point-to-point ip ospf 1 area 0 ! router ospf 1 router-id 172.16.255.1 ! router bgp 65001 template peer-policy RR-PP route-reflector-client send-community both exit-peer-policy ! template peer-session RR-PS remote-as 65001 update-source Loopback0 exit-peer-session !
bgp router-id 172.16.255.1 bgp log-neighbor-changes no bgp default ipv4-unicast neighbor 172.16.255.4 inherit peer-session RR-PS neighbor 172.16.255.6 inherit peer-session RR-PS ! ! ! Border VTEP# show running-config _ hostname Border VTEP _ !vrf definition green rd 1:1 ! address-family ipv4 route-target export 1:1 route-target import 1:1 route-target export 1:1 stitching route-target import 1:1 stitching exit-address-family ! address-family ipv6 route-target export 1:1 route-target import 1:1 route-target export 1:1 stitching route-target import 1:1 stitching exit-address-family ! mpls label mode all-vrfs protocol all-afs per-vrf !
l2vpn evpn replication-type static router-id Loopback1 default-gateway advertise ! l2vpn evpn instance 101 vlan-based encapsulation vxlan ! l2vpn evpn instance 102 vlan-based encapsulation vxlan replication-type ingress ! vlan configuration 101 member evpn-instance 101 vni 10101 vlan configuration 102 member evpn-instance 102 vni 10102 vlan configuration 901 member vni 50901 ! interface Loopback0 ip address 172.16.255.6 255.255.255.255 ip pim sparse-mode ip ospf 1 area 0 ! interface Loopback1 ip address 172.16.254.6 255.255.255.255 ip pim sparse-mode ip ospf 1 area 0 !
interface TenGigabitEthernet1/0/1 no switchport ip address 172.16.16.6 255.255.255.0 ip pim sparse-mode ip ospf network point-to-point ip ospf 1 area 0 PE device 1# show running-config _ _ hostname PE device 1 _ _ ! vrf definition green rd 1:1 ! address-family ipv4 route-target export 1:1 route-target import 1:1 exit-address-family ! address-family ipv6 route-target export 1:1 route-target import 1:1 exit-address-family ! interface Loopback0 ip address 172.16.255.101 255.255.255.255 ! interface Loopback1 vrf forwarding green ip address 10.1.255.101 255.255.255.255 !
interface TenGigabitEthernet0/0/1 ip address 172.16.111.101 255.255.255.0 ip router isis cdp enable mpls ip isis network point-to-point ! interface TenGigabitEthernet0/0/2 ip address 172.16.106.101 255.255.255.0 ip router isis negotiation auto cdp enable mpls ip isis network point-to-point ! router isis net 49.0001.1720.1625.5101.00 is-type level-2-only metric-style wide passive-interface Loopback0 ! router bgp 65001 bgp log-neighbor-changes no bgp default ipv4-unicast neighbor 172.16.255.103 remote-as 65001 neighbor 172.16.255.103 update-source Loopback0 ! address-family ipv4 exit-address-family ! Configuring EVPN VXLAN External Connectivity 22