实战 | 多区域OSPF典型配置案例

网络技术联盟站

发布于 2020-04-09 10:12:39

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发布于 2020-04-09 10:12:39

文章被收录于专栏：网络技术联盟站网络技术联盟站

组网及说明

在实际组网中，经常会遇到OSPF组网的案例，比如单区域OSPF、多区域OSPF、OSPF虚链路、OSPF NSSA、OSPF STUB等需求，以下是多区域OSPF典型组网的配置案例。

网络拓扑图：

互联地址、业务地址、looback0地址如上图所示，全网均采用OSPF进程1、其中R1与R2路由器属于OSPF的区域0，R2与R3路由器属于OSPF区域1，实现全网互联互通。

配置步骤

配置loopback0地址
配置各互联地址
创建OSPF进程1，并将各地址在区域0中发布
查看OSPF邻居的状态
测试PC之间能互联互通

配置关键点

R1：

<H3C>system-view

[H3C]sysname R1

[R1]int LoopBack 0

[R1-LoopBack0]ip add

[R1-LoopBack0]ip address 1.1.1.1 32

[R1-LoopBack0]quit

[R1]int gi 0/0

[R1-GigabitEthernet0/0]ip address 192.168.1.1 24

[R1-GigabitEthernet0/0]description <connect to PC>

[R1-GigabitEthernet0/0]quit

[R1]int gi 0/1

[R1-GigabitEthernet0/1]ip address 10.0.0.1 30

[R1-GigabitEthernet0/1]description <connect to R2>

[R1-GigabitEthernet0/1]quit

[R1]ospf 1 router-id 1.1.1.1

[R1-ospf-1]area 0.0.0.0

[R1-ospf-1-area-0.0.0.0]network 10.0.0.1 0.0.0.0

[R1-ospf-1-area-0.0.0.0]network 1.1.1.1 0.0.0.0

[R1-ospf-1-area-0.0.0.0]network 192.168.1.0 0.0.0.255

[R1-ospf-1-area-0.0.0.0]quit

[R1-ospf-1]quit

R2：

<H3C>system-view

[H3C]sysname R2

[R2]int LoopBack 0

[R2-LoopBack0]ip address 2.2.2.2 32

[R2-LoopBack0]quit

[R2]int gi 0/0

[R2-GigabitEthernet0/0]ip address 10.0.0.2 30

[R2-GigabitEthernet0/0]description <connect to R1>

[R2-GigabitEthernet0/0]quit

[R2]int gi 0/1

[R2-GigabitEthernet0/1]description <connect to R3>

[R2-GigabitEthernet0/1]ip address 10.0.0.5 30

[R2-GigabitEthernet0/1]quit

[R2]ospf 1 router-id 2.2.2.2

[R2-ospf-1]area 0.0.0.0

[R2-ospf-1-area-0.0.0.0]network 10.0.0.2 0.0.0.0

[R2-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0

[R2-ospf-1-area-0.0.0.0]quit

[R2-ospf-1]area 0.0.0.1

[R2-ospf-1-area-0.0.0.1]network 10.0.0.5 0.0.0.0

[R2-ospf-1-area-0.0.0.1]quit

[R2-ospf-1]quit

R3：

<H3C>system-view

[H3C]sysname R3

[R3]int LoopBack 0

[R3-LoopBack0]ip address 3.3.3.3 32

[R3-LoopBack0]quit

[R3]int gi 0/0

[R3-GigabitEthernet0/0]description <connect to PC>

[R3-GigabitEthernet0/0]ip address 172.16.1.1 24

[R3-GigabitEthernet0/0]quit

[R3]int gi 0/1

[R3-GigabitEthernet0/1]description <connect to R2>

[R3-GigabitEthernet0/1]ip address 10.0.0.6 30

[R3-GigabitEthernet0/1]quit

[R3]ospf 1 router-id 3.3.3.3

[R3-ospf-1]area 0.0.0.1

[R3-ospf-1-area-0.0.0.1]network 10.0.0.6 0.0.0.0

[R3-ospf-1-area-0.0.0.1]network 3.3.3.3 0.0.0.0

[R3-ospf-1-area-0.0.0.1]network 172.16.1.0 0.0.0.255

[R3-ospf-1-area-0.0.0.1]quit

[R3-ospf-1]quit

测试各路由器的OSPF邻居建立情况：

[R1]dis ospf peer



         OSPF Process 1 with Router ID 1.1.1.1

               Neighbor Brief Information



 Area: 0.0.0.0

 Router ID       Address         Pri Dead-Time  State             Interface

 2.2.2.2         10.0.0.2        1   31         Full/BDR          GE0/1

[R1]



[R2]dis ospf peer



         OSPF Process 1 with Router ID 2.2.2.2

               Neighbor Brief Information



 Area: 0.0.0.0

 Router ID       Address         Pri Dead-Time  State             Interface

 1.1.1.1         10.0.0.1        1   35         Full/DR           GE0/0



 Area: 0.0.0.1

 Router ID       Address         Pri Dead-Time  State             Interface

 3.3.3.3         10.0.0.6        1   33         Full/BDR          GE0/1

[R2]



[R3]dis ospf peer



         OSPF Process 1 with Router ID 3.3.3.3

               Neighbor Brief Information



 Area: 0.0.0.1

 Router ID       Address         Pri Dead-Time  State             Interface

 2.2.2.2         10.0.0.5        1   32         Full/DR           GE0/1

[R3]