H3CSE路由实验手册(3)

[H3C]sysname RT4

[RT4]interface LoopBack 1

[RT4-LoopBack1]ip address 4.4.4.4 32 [RT4-LoopBack1]quit [RT4]interface Serial 0/2/0

[RT4-Serial0/2/0]ip address 20.1.1.2 24 [RT4-Serial0/2/2]ip address 30.1.1.1 24 [RT4]ospf router-id 4.4.4.4 [RT4-ospf-1]area 1

[RT4-ospf-1-area-0.0.0.1]network 20.1.1.0 0.0.0.255 [RT4-ospf-1-area-0.0.0.1]network 4.4.4.4 0.0.0.0 [RT4-ospf-1-area-0.0.0.1]quit [RT4-ospf-1]area 2

[RT4-ospf-1-area-0.0.0.2]network 30.1.1.0 0.0.0.255 [RT4-ospf-1]quit [RT4]

RT5上的配置： [H3C]sysname RT5

[RT5]interface LoopBack 1

[RT5-LoopBack1]ip address 5.5.5.5 32 [RT5-LoopBack1]quit [RT5]interface Serial 0/2/2

[RT5-Serial0/2/2]ip address 30.1.1.2 24 [RT5]ospf router-id 5.5.5.5 [RT5-ospf-1]area 2

[RT5-ospf-1-area-0.0.0.2]network 30.1.1.0 0.0.0.255 [RT5-ospf-1-area-0.0.0.2]network 5.5.5.5 0.0.0.0 [RT5-ospf-1-area-0.0.0.2]quit [RT5-ospf-1]quit [RT5]

配置好了之后查看RT5的路由表会发现只有直连路由： [RT5]display ip routing-table Routing Tables: Public

Destinations : 6 Routes : 6

Destination/Mask Proto Pre Cost Interface

5.5.5.5/32 Direct 0 0 127.0.0.1 InLoop0

30.1.1.0/24 Direct 0 0 30.1.1.2 S0/2/2

30.1.1.1/32 Direct 0 0 30.1.1.1 S0/2/2

NextHop 30.1.1.2/32 Direct 0 0 127.0.0.1 InLoop0

127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0

127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0

这时分别在RT3和RT4上配置虚链接： [RT3]ospf

[RT3-ospf-1]area 1

[RT3-ospf-1-area-0.0.0.1]vlink-peer 4.4.4.4 [RT4]ospf

[RT4-ospf-1]area 1

[RT4-ospf-1-area-0.0.0.1]vlink-peer 3.3.3.3 配置好了之后再从RT5上查看路由表： [RT5]display ip routing-table Routing Tables: Public

Destinations : 11 Routes : 11

Destination/Mask Proto Pre Cost Interface

2.2.2.2/32 OSPF 10 4686 NextHop 30.1.1.1

S0/2/2

3.3.3.3/32 OSPF 10 3124 30.1.1.1 S0/2/2

4.4.4.4/32 OSPF 10 1562 30.1.1.1 S0/2/2

5.5.5.5/32 Direct 0 0 127.0.0.1 InLoop0

10.1.1.0/24 OSPF 10 4686 S0/2/2

20.1.1.0/24 OSPF 10 3124 S0/2/2

30.1.1.0/24 Direct 0 0 S0/2/2

30.1.1.1/32 Direct 0 0 S0/2/2

30.1.1.2/32 Direct 0 0 127.0.0.1 InLoop0

127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0

127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0

会发现路由已经正确学习到，说明虚链接生效了。

30.1.1.1 30.1.1.1 30.1.1.2 30.1.1.1 4. OSPF路由聚合：

OSPF的路由聚合分为两种，一个是3类LSA的聚合，还有一个五类LSA的聚合。 3类LSA的聚合配置： RT2的配置如下： [H3C]sysname RT2

[RT2]interface Serial 0/2/2

[RT2-Serial0/2/2]ip address 10.1.1.1 24 [RT2-Serial0/2/2]quit [RT2]interface LoopBack 1

[RT2-LoopBack1]ip address 2.2.2.2 32 [RT2-LoopBack1]quit [RT2]interface LoopBack 2

[RT2-LoopBack2]ip address 192.168.0.1 32 [RT2-LoopBack2]quit [RT2]interface LoopBack 3

[RT2-LoopBack3]ip address 192.168.1.1 32 [RT2-LoopBack3]quit