BGP EVPN方式VXLAN实验 _VXLAN

组网需求
企业在不同的数据中心中都拥有自己的VM，服务器1上的VM1属于VLAN 30，服务器2上的VM1属于VLAN 20，服务器1和服务器2位于相同网段。现需要配置通过VXLAN实现相同网段用户通信。

通过配置VXLAN实现相同网段用户通信组网图

文章插图

配置思路
采用如下思路配置通过VXLAN实现相同网段用户通信：

分别配置路由协议，保证网络三层互通。
分别配置业务接入点实现区分业务流量。
使用EVPN作VXLAN控制平面功能。
配置BGP EVPN对等体关系。
配置EVPN实例。
配置头端复制功能。

数据准备
为完成此配置例，需准备如下的数据：

VM所属的VLAN ID分别是VLAN 20和VLAN 30 。
网络中设备互连的接口IP地址。
网络中使用的IGP（Internal Gateway Protocol）路由类型是OSPF（Open Shortest Path First）。
广播域BD 20，30
VXLAN网络标识VNI 5020 。
EVPN实例的RD值为1111：1111，RT值为1111：1111 。RD值为2222：2222，RT值为2222：2222 。

操作步骤
Spine1配置

sysname spine1

#
evpn-overlay enable
#
interface GE1/0/0
undo portswitch
undo shutdown
ip address 10.1.13.1 255.255.255.0
ospf network-type p2p
ospf enable 1 area 0.0.0.0
#
interface GE1/0/1
undo portswitch
undo shutdown
ip address 10.1.14.1 255.255.255.0
ospf network-type p2p
ospf enable 1 area 0.0.0.0
#
interface GE1/0/2
undo portswitch
undo shutdown
ip address 10.1.15.1 255.255.255.0
ospf network-type p2p
ospf enable 1 area 0.0.0.0
#
interface GE1/0/3
undo portswitch
undo shutdown
ip address 10.1.16.1 255.255.255.0
ospf network-type p2p
ospf enable 1 area 0.0.0.0
#
interface GE1/0/4
undo portswitch
undo shutdown
ip address 10.1.12.1 255.255.255.0
ospf network-type p2p
ospf enable 1 area 0.0.0.0
#
interface LoopBack0
ip address 1.1.1.1 255.255.255.255
ospf enable 1 area 0.0.0.0
#
interface Nve1
#
interface NULL0
#
bgp 100
peer 2.2.2.2 as-number 100
peer 2.2.2.2 connect-interface LoopBack0
peer 3.3.3.3 as-number 100
peer 3.3.3.3 connect-interface LoopBack0
peer 4.4.4.4 as-number 100
peer 4.4.4.4 connect-interface LoopBack0
peer 5.5.5.5 as-number 100
peer 5.5.5.5 connect-interface LoopBack0
peer 6.6.6.6 as-number 100
peer 6.6.6.6 connect-interface LoopBack0
#
ipv4-family unicast
undo peer 2.2.2.2 enable
undo peer 3.3.3.3 enable
undo peer 4.4.4.4 enable
undo peer 5.5.5.5 enable
undo peer 6.6.6.6 enable
#
l2vpn-family evpn
undo policy vpn-target
peer 2.2.2.2 enable
peer 2.2.2.2 advertise irb
peer 2.2.2.2 reflect-client
peer 3.3.3.3 enable
peer 3.3.3.3 advertise irb
peer 3.3.3.3 reflect-client
peer 4.4.4.4 enable
peer 4.4.4.4 advertise irb
peer 4.4.4.4 reflect-client
peer 5.5.5.5 enable
peer 5.5.5.5 advertise irb
peer 5.5.5.5 reflect-client
peer 6.6.6.6 enable
peer 6.6.6.6 advertise irb
peer 6.6.6.6 reflect-client
#
ospf 1
area 0.0.0.0
Commit

Span2配置

sysname spain2
#
device board 17 board-type CE-MPUB
device board 1 board-type CE-LPUE
#
evpn-overlay enable
#
#
interface GE1/0/0
undo portswitch
undo shutdown
ip address 10.1.23.2 255.255.255.0
ospf network-type p2p
ospf enable 1 area 0.0.0.0
#
interface GE1/0/1
undo portswitch
undo shutdown
ip address 10.1.24.2 255.255.255.0
ospf network-type p2p
ospf enable 1 area 0.0.0.0
#
interface GE1/0/2
undo portswitch
undo shutdown
ip address 10.1.25.2 255.255.255.0
ospf network-type p2p
ospf enable 1 area 0.0.0.0
#
interface GE1/0/3
undo portswitch
undo shutdown
ip address 10.1.26.2 255.255.255.0
ospf network-type p2p
ospf enable 1 area 0.0.0.0
#
interface GE1/0/4
undo portswitch
undo shutdown
ip address 10.1.12.2 255.255.255.0
ospf network-type p2p
ospf enable 1 area 0.0.0.0
#
interface LoopBack0
ip address 2.2.2.2 255.255.255.255
ospf enable 1 area 0.0.0.0
#
interface NULL0
#
bgp 100
peer 1.1.1.1 as-number 100
peer 1.1.1.1 connect-interface LoopBack0