BGP实验 – 路由反射器

BGP实验 – 路由反射器

我们这里采用的是：图中四种情况中的第二种就是AR2和AR4都配置为了客户端，两个都是客户端，所以可以传、但是如果是图中的第四种情况，那么就是非客户端，符合非非不传，那么就不会传路由，这个时候AR3就是属于普通路由器了，而不是作为路由反射器这个角色了。

配置如下：

AR1配置：

[AR1]dis cu
#
sysname AR1
#
interface GigabitEthernet0/0/0
ip address 12.1.1.1 255.255.255.0
#
interface LoopBack0
ip address 100.1.1.1 255.255.255.255
#
bgp 1
router-id 1.1.1.1
peer 12.1.1.2 as-number 234
#
ipv4-family unicast
undo synchronization
network 100.1.1.1 255.255.255.255
peer 12.1.1.2 enable

AR2配置如下：

[AR2]dis cu
sysname AR2
#
interface GigabitEthernet0/0/0
ip address 12.1.1.2 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address 23.1.1.2 255.255.255.0
#
interface LoopBack0
ip address 2.2.2.2 255.255.255.255
#
bgp 234
router-id 2.2.2.2
peer 3.3.3.3 as-number 234
peer 3.3.3.3 connect-interface LoopBack0
peer 4.4.4.4 as-number 234
peer 4.4.4.4 connect-interface LoopBack0
peer 12.1.1.1 as-number 1
#
ipv4-family unicast
undo synchronization
peer 3.3.3.3 enable
peer 3.3.3.3 next-hop-local
peer 4.4.4.4 enable
peer 4.4.4.4 next-hop-local
peer 12.1.1.1 enable
#
ospf 1 router-id 2.2.2.2
area 0.0.0.0
network 2.2.2.2 0.0.0.0
network 23.1.1.2 0.0.0.0

AR3配置如下：

[AR3]dis cu
#
sysname AR3
#
interface GigabitEthernet0/0/0
ip address 34.1.1.3 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address 23.1.1.3 255.255.255.0
#
interface LoopBack0
ip address 3.3.3.3 255.255.255.255
#
bgp 234
peer 2.2.2.2 as-number 234
peer 4.4.4.4 as-number 234
#
ipv4-family unicast
undo synchronization
peer 2.2.2.2 enable
peer 2.2.2.2 reflect-client
peer 4.4.4.4 enable
peer 4.4.4.4 reflect-client
#
ospf 1 router-id 3.3.3.3
area 0.0.0.0
network 3.3.3.3 0.0.0.0
network 23.1.1.3 0.0.0.0
network 34.1.1.3 0.0.0.0

AR4配置如下：

[AR4]dis cu
#
sysname AR4
#
interface GigabitEthernet0/0/0
ip address 45.1.1.4 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address 34.1.1.4 255.255.255.0
#
interface LoopBack0
ip address 4.4.4.4 255.255.255.255
#
bgp 234
router-id 4.4.4.4
peer 2.2.2.2 as-number 234
peer 2.2.2.2 connect-interface LoopBack0
peer 3.3.3.3 as-number 234
peer 3.3.3.3 connect-interface LoopBack0
peer 45.1.1.5 as-number 5
peer 45.1.1.5 ebgp-max-hop 255
#
ipv4-family unicast
undo synchronization
peer 2.2.2.2 enable
peer 2.2.2.2 next-hop-local
peer 3.3.3.3 enable
peer 3.3.3.3 next-hop-local
peer 45.1.1.5 enable
#
ospf 1 router-id 4.4.4.4
area 0.0.0.0
network 4.4.4.4 0.0.0.0
network 34.1.1.4 0.0.0.0

AR5配置如下：

[AR5]dis cu
#
sysname AR5
#
interface GigabitEthernet0/0/0
ip address 45.1.1.5 255.255.255.0
#
interface LoopBack0
ip address 200.1.1.1 255.255.255.255
#
bgp 5
peer 45.1.1.4 as-number 234
#
ipv4-family unicast
undo synchronization
network 200.1.1.1 255.255.255.255
peer 45.1.1.4 enable

验证现象：

路由反射器产生效果如图

验证：配置了路由反射器，发现可以ping通