1. 配置接口所属VLAN
[LSW1]vlan batch 10 40
[LSW1-GigabitEthernet0/0/1]port link-type trunk
[LSW1-GigabitEthernet0/0/1]port trunk allow-pass vlan 40
[LSW1-GigabitEthernet0/0/2]port link-type trunk
[LSW1-GigabitEthernet0/0/2]port trunk allow-pass vlan 10
[LSW2]vlan batch 10 20
[LSW2-GigabitEthernet0/0/1]port link-type trunk
[LSW2-GigabitEthernet0/0/1]port trunk allow-pass vlan 10
[LSW2-GigabitEthernet0/0/3]port link-type trunk
[LSW2-GigabitEthernet0/0/3]port trunk allow-pass vlan 20
[LSW3]vlan batch 20 30
[LSW3-GigabitEthernet0/0/2]port link-type trunk
[LSW3-GigabitEthernet0/0/2]port trunk allow-pass vlan 20
[LSW3-GigabitEthernet0/0/1]port link-type trunk
[LSW3-GigabitEthernet0/0/1]port trunk allow-pass vlan 30
2. 配置各VLANIF接口的IP地址
[LSW1-Vlanif10]ip add 10.1.1.1 24
[LSW1-Vlanif40]ip add 10.1.4.1 24
[LSW2-Vlanif10]ip add 10.1.1.2 24
[LSW2-Vlanif20]ip add 10.1.2.2 24
[LSW3-Vlanif20]ip add 10.1.2.3 24
[LSW3-Vlanif30]ip add 10.1.3.3 24
3. 配置OSPF
[LSW2]ospf 1
[LSW2-ospf-1]area 0
[LSW2-ospf-1-area-0.0.0.0]network 10.1.2.0 0.0.0.255
[LSW3]ospf 1
[LSW3-ospf-1]area 0
[LSW3-ospf-1-area-0.0.0.0]network 10.1.2.0 0.0.0.255
[LSW3-ospf-1-area-0.0.0.0]network 10.1.3.0 0.0.0.255
4. 配置EBGP连接
[LSW1]bgp 65008
[LSW1-bgp]router-id 10.1.1.1
[LSW1-bgp]peer 10.1.1.2 as-number 65009
[LSW1-bgp]ipv4-family unicast
[LSW1-bgp-af-ipv4]network 10.1.4.0 255.255.255.0
[LSW2]bgp 65009
[LSW2-bgp]router-id 10.2.2.2
[LSW2-bgp]peer 10.1.1.1 as-number 65008
5. 配置BGP与IGP交互
[LSW2]bgp 65009
[LSW2-bgp]ipv4-family unicast
[LSW2-bgp-af-ipv4]import-route ospf 1 //配置BGP引入OSPF路由
[LSW2]ospf 1
[LSW2-ospf-1]import-route bgp
6. 配置路由自动聚合
[LSW2]bgp 65009
[LSW2-bgp]ipv4-family unicast
[LSW2-bgp-af-ipv4]summary automatic
7. 验证配置
