一 组网说明:
如上图所示，锐捷2台Leaf设备建立BGP EVPN邻居，建立VXLAN隧道，实现PC1和PC2 VXLAN二层互通
二 设备配置：
2.1 Leaf01设备：
1.Underlay配置
hostname Leaf01
!
interface Loopback 0
description vxlan-vtep
ip address 1.1.1.1 255.255.255.255
!
interface Gi1/0/1
description TO-Leaf02
ip address 6.6.6.1 255.255.255.252
!
router ospf 1
router-id 1.1.1.1
graceful-restart
network 1.1.1.1 0.0.0.0 area 0
network 6.6.6.1 0.0.0.0 area 0
!
2.Overlay配置
!
switch-mode alpm overlay switch 1 slot 0(盒式设备切换VXLAN模式，重启生效)
!
router bgp 100
address-family I2vpn evpn
neighbor 2.2.2.2 remote-as 100
neighbor 2.2.2.2 update-source Loopback 0
！
vtep
source loopback 0
！
evpn
vni 10
rd auto
route-target both auto
！
vlan 10
vxlan 10
extend-vlan 10
！
vlan 10
description YW
!
interface Gi1/0/2
description TO-PC1
switchport mode access
switchport access vlan 10
!
2.Leaf02设备：
1.Underlay配置
hostname Leaf02
!
interface Loopback 0
description vxlan-vtep
ip address 2.2.2.2 255.255.255.255
!
interface Gi1/0/1
description TO-Leaf02
ip address 6.6.6.2 255.255.255.252
!
router ospf 1
router-id 2.2.2.2
graceful-restart
network 2.2.2.2 0.0.0.0 area 0
network 6.6.6.2 0.0.0.0 area 0
!
2.Overlay配置
!
switch-mode alpm overlay switch 1 slot 0(盒式设备切换VXLAN模式，重启生效)
!
router bgp 100
address-family I2vpn evpn
neighbor 1.1.1.1 remote-as 100
neighbor 1.1.1.1 update-source Loopback 0
！
vtep
source loopback 0
！
evpn
vni 10
rd auto
route-target both auto
！
vlan 10
vxlan 10
extend-vlan 10
！
vlan 10
description YW
!
interface Gi1/0/2
description TO-PC2
switchport mode access
switchport access vlan 10
!
三 设备查看命令：
show run
show ip in b
show int status
show mac
show vxlan mac
show vxlan tunnel
show lldp n
