OSPF分流实验

Ospf分流实验

首先搭建拓扑，分配环回和物理接口IP

配置好各路由器的环回和物理接口

配置ospf

[r3]ospf 1 router-id 3.3.3.3

[r3-ospf-1]a 0

[r3-ospf-1-area-0.0.0.0]network 13.1.1.2 0.0.0.0

[r3-ospf-1-area-0.0.0.0]network 34.1.1.1 0.0.0.0

[r3-ospf-1-area-0.0.0.0]q

[r3-ospf-1]ospf 2

[r3-ospf-2]a 1

[r3-ospf-2-area-0.0.0.1]network 35.1.1.1 0.0.0.0

[r3-ospf-2-area-0.0.0.1]network 36.1.1.1 0.0.0.0

[r4]ospf 1 router-id 4.4.4.4

[r4-ospf-1]a 0

[r4-ospf-1-area-0.0.0.0]network 24.1.1.2 0.0.0.0

[r4-ospf-1-area-0.0.0.0]network 34.1.1.2 0.0.0.0

[r4-ospf-1-area-0.0.0.0]q

[r4-ospf-1]ospf 2

[r4-ospf-2]a 1

[r4-ospf-2-area-0.0.0.1]network 45.1.1.1 0.0.0.0

[r4-ospf-2-area-0.0.0.1]network 46.1.1.1 0.0.0.0

[r4-ospf-2-area-0.0.0.1]

[r5]ospf 2 router-id 5.5.5.5

[r5-ospf-2]a 1

[r5-ospf-2-area-0.0.0.1]network 10.5.0.0 0.0.255.255

[r5-ospf-2-area-0.0.0.1]network 35.1.1.2 0.0.0.0

[r5-ospf-2-area-0.0.0.1]network 45.1.1.2 0.0.0.0

[r6]ospf 2 router-id 6.6.6.6

[r6-ospf-2]a 1

[r6-ospf-2-area-0.0.0.1]net

[r6-ospf-2-area-0.0.0.1]network 10.6.0.0 0.0.255.255

[r6-ospf-2-area-0.0.0.1]network 36.1.1.2 0.0.0.0

[r6-ospf-2-area-0.0.0.1]network 46.1.1.2 0.0.0.0

抓取路由

[r3]ip ip-prefix a1 permit 10.1.1.1 24

[r3]ip ip-prefix a2 permit 10.2.1.1 24

[r3]ip ip-prefix a3 permit 10.5.1.1 24

[r3]ip ip-prefix a4 permit 10.6.1.1 24

[r4]ip ip-prefix a1 permit 10.1.2.1 24

[r4]ip ip-prefix a2 permit 10.2.2.1 24

[r4]ip ip-prefix a3 permit 10.5.2.1 24

[r4]ip ip-prefix a4 permit 10.6.2.1 24

对需要备份的路由将cost值增大，即进行备份

[r3]route-policy 1 permit node 10

Info: New Sequence of this List.

[r3-route-policy]if-match ip-prefix a1     

[r3-route-policy]apply cost 10

[r3-route-policy]q

[r3]route-policy 1 permit node 20

Info: New Sequence of this List.

[r3]route-policy 2 permit node 10

Info: New Sequence of this List. 

[r3-route-policy]if-match ip-prefix a2

[r3-route-policy]apply cost 10

[r3-route-policy]q

[r3]route-policy 2 permit node 20

Info: New Sequence of this List.

[r3]route-policy 3 permit node 10

Info: New Sequence of this List.

[r3-route-policy]if-match ip-prefix a3

[r3-route-policy]apply cost 10

[r3-route-policy]q

[r3]route-policy 3 permit node 20

Info: New Sequence of this List.

[r3]route-policy 4 permit node 10

Info: New Sequence of this List.

[r3-route-policy]if-match ip-prefix a4

[r3-route-policy]apply cost 10

[r3-route-policy]q

[r3]route-policy 4 permit node 20

Info: New Sequence of this List.

R4同理

重发布调用：

[r3]ospf 1

[r3-ospf-1]import-route ospf 2 route-policy 3

[r3-ospf-1]import-route ospf 2 route-policy 4

[r3-ospf-1]q

[r3]ospf 2

[r3-ospf-2]import-route ospf 1 route-policy 1

[r3-ospf-2]import-route ospf 1 route-policy 2

[r4]ospf 1

[r4-ospf-1]import-route ospf 2 route-policy 3

[r4-ospf-1]import-route ospf 2 route-policy 4

[r4-ospf-1]q

[r4]ospf 2

[r4-ospf-2]import-route ospf 1 route-policy 1

[r4-ospf-2]import-route ospf 1 route-policy 2