推荐步骤
基本网络参数配置
基本路由协议ospf和bgp的配置
通过bgp的属性控制选路
通过tracert或者抓包验证
配置每个路由器的IP地址和loo接口ip地址
[Huawei]sysname R1
[R1]interface GigabitEthernet0/0/0
[R1-GigabitEthernet0/0/0]ip address 12.1.1.1 24
[R1]interface LoopBack 0
[R1-LoopBack0]ip address 1.1.1.1 32
Huawei]sysname R2
[R2]interface LoopBack 0
[R2-LoopBack0]ip address 2.2.2.2 32
[R2]interface GigabitEthernet0/0/0
[R2-GigabitEthernet0/0/0]ip address 12.1.1.2 24
[R2-GigabitEthernet0/0/0]quit
[R2]interface GigabitEthernet
[R2-GigabitEthernet0/0/1]ip address 23.1.1.2 24
[R2-GigabitEthernet0/0/1]quit
[R2]interface GigabitEthernet0/0/2
[R2-GigabitEthernet0/0/2]ip address 26.1.1.2 24
[Huawei]sysname R3
[R3]interface GigabitEthernet
[R3]interface GigabitEthernet0/0/1
[R3-GigabitEthernet0/0/1]ip address 23.1.1.3 24
[R3-GigabitEthernet0/0/1]quit
[R3]interface GigabitEthernet0/0/0
[R3-GigabitEthernet0/0/0]ip address 34.1.1.3 24
[R3]interface LoopBack 0
[R3-LoopBack0]ip address 3.3.3.3 32
[Huawei]sysname R4
[R4]interface GigabitEthernet0/0/0
[R4-GigabitEthernet0/0/0]ip address 34.1.1.4 24
[R4]interface GigabitEthernet0/0/2
[R4-GigabitEthernet0/0/2]ip address 64.1.1.4 24
[R4]interface GigabitEthernet0/0/1
[R4-GigabitEthernet0/0/1]ip address 45.1.1.4 24
[R4]interface LoopBack 0
[R4-LoopBack0]ip address 4.4.4.4 32
[Huawei]sysname R5
[R5]interface GigabitEthernet0/0/1
[R5-GigabitEthernet0/0/1]IP address 45.1.1.5 24
[R5-GigabitEthernet0/0/1]quit
[R5]interface LoopBack 0
[R5-LoopBack0]ip address 5.5.5.5 32
[Huawei]sysname R6
[R6]interface GigabitEthernet0/0/2
[R6-GigabitEthernet0/0/2]ip address 26.1.1.6 24
[R6-GigabitEthernet0/0/2]quit
[R6]interface GigabitEthernet0/0/1
[R6-GigabitEthernet0/0/1]ip address 64.1.1.6 24
[R6]interface LoopBack 0
[R6-LoopBack0]ip address 10.1.1.1
[R6-LoopBack0]
ip address 10.1.1.1 32
[R2]ospf 10 router-id 2.2.2.2
[R2-ospf-10-area-0.0.0.0]network 23.1.1.0 0.0.0.255
[R2-spf-10-area-0.0.0.0]network 26.1.1.0 0.0.0.255
[R2-ospf-10-area-0.0.0.0]network 2.2.2.2 0.0.0.0
[R3]ospf 10 router-id 3.3.3.3
[R3-ospf-10-area-0.0.0.0]network 23.1.1.0 0.0.0.255
[R3-ospf-10-area-0.0.0.0]network 34.1.1.0 0.0.0.255
[R3-ospf-10-area-0.0.0.0]network 3.3.3.3 0.0.0.0
[R4]ospf 10 router-id 4.4.4.4
[R4-ospf-10-area-0.0.0.0]network 34.1.1.0 0.0.0.255
[R4-ospf-10-area-0.0.0.0]network 64.1.1.0 0.0.0.255
[R4-ospf-10-area-0.0.0.0]network 4.4.4.4 0.0.0.0
[R6]ospf 10 router-id 10.1.1.1
[R6-ospf-10-area-0.0.0.0]network 26.1.1.0 0.0.0.255
[R6-ospf-10-area-0.0.0.0]network 64.1.1.0 0.0.0.255
[R6-ospf-10-area-0.0.0.0]network 10.1.1.1 0.0.0.255
Bgp的配置
[R1]bgp 100
[R1-bgp]router-id 1.1.1.1
[R1-bgp]peer 12.1.1.2 as-number 200
[R2]bgp 200
[R2-bgp]peer 12.1.1.1 as-number 100
[R4]bgp 200
[R4-bgp]peer 45.1.1.5 as-number 300
[R4-bgp]router-id 4.4.4.4
[R5]bgp 300
[R5-bgp]peer 45.1.1.4 as-number 200
[R5-bgp]network 5.5.5.5 255.255.255.255
四、R2、R3、R4、R5通过配置BGP组的方式建立邻居管理
[R2]bgp 200
[R2-bgp]group 10
internal
[R2-bgp]peer 3.3.3.3
group 10
[R2-bgp]peer 4.4.4.4
group 10
[R2-bgp]peer 5.5.5.5
group 10
[R2-bgp]peer 10
connect-interface LoopBack 0
[R2-bgp]peer 10
next-hop-local
[R3]bgp 200
[R3-bgp]group 20
internal
[R3-bgp]peer 2.2.2.2
group 20
[R3-bgp]peer 5.5.5.5
group 20
[R3-bgp]peer 20
connect-interface LoopBack 0
[R3-bgp]peer 20
next-hop-local
[R4]bgp 200
[R4-bgp]group 30
internal
[R4gp]peer 2.2.2.2
group
[R4-bgp]peer 5.5.5.5
group 30
[R4-bgp]peer 30
connect-interface LoopBack 0
[R4-bgp]peer 30
next-hop-local
[R5]bgp 200
[5-bgp]group 40
internal
[R5-bgp]peer 3.3.3.3
group 40
[R5-bgp]peer 4.4.4.4
group 40
[R5-bgp]peer 2.2.2.2
group 40
[R5-bgp]peer 40
connect-interface LoopBack 0
[R5-bgp]peer 40
next-hop-local
五、在R2和R5上重分发直连和ospf
[R2]bgp 200
[R2-bgp]import-route
direct
[R2-bgp]import-route
ospf 10
[R5]bgp 200
[R5-bgp]import-route
direct
[R5-bgp]import-route ospf 10
开始验证