按照图示分区域配置OSPF
配置虚连接认证
配置相应接口IP地址及loopback 环回口地址
按照图示分区域配置OSPF
AR1
[Huawei]ospf router-id 1.1.1.1
[Huawei-ospf-1]area 0
[Huawei-ospf-1-area-0.0.0.0]network 1.1.1.1 0.0.0.0
[Huawei-ospf-1-area-0.0.0.0]network 20.1.1.0 0.0.0.255
AR2
[Huawei]ospf router-id 2.2.2.2
[Huawei-ospf-1]area 0
[Huawei-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
[Huawei-ospf-1-area-0.0.0.0]network 20.1.1.0 0.0.0.255
[Huawei-ospf-1]area 1
[Huawei-ospf-1-area-0.0.0.1]network 30.1.1.0 0.0.0.255
AR3
[Huawei]ospf router-id 3.3.3.3
[Huawei-ospf-1]area 1
[Huawei-ospf-1-area-0.0.0.1]network 3.3.3.3 0.0.0.0
[Huawei-ospf-1-area-0.0.0.1]network 30.1.1.0 0.0.0.255
[Huawei-ospf-1]area 2
[Huawei-ospf-1-area-0.0.0.1]network 40.1.1.0 0.0.0.255
AR4
[Huawei]ospf router-id 4.4.4.4
[Huawei-ospf-1]area 2
[Huawei-ospf-1-area-0.0.0.1]network 4.4.4.4 0.0.0.0
[Huawei-ospf-1-area-0.0.0.1]network 40.1.1.0 0.0.0.255
[Huawei]ping 3.3.3.3
PING 3.3.3.3: 56 data bytes, press CTRL_C to break
Reply from 3.3.3.3: bytes=56 Sequence=1 ttl=254 time=20 ms
Reply from 3.3.3.3: bytes=56 Sequence=2 ttl=254 time=20 ms
Reply from 3.3.3.3: bytes=56 Sequence=3 ttl=254 time=30 ms
Reply from 3.3.3.3: bytes=56 Sequence=4 ttl=254 time=40 ms
Reply from 3.3.3.3: bytes=56 Sequence=5 ttl=254 time=40 ms
--- 3.3.3.3 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 20/30/40 ms
ospf非骨干区域必须和骨干区域相连才能通信,为了不改变网络拓扑,我们可以实现虚连接来扩大区域0的面积,实现区域互通。
AR2
[Huawei-ospf-1-area-0.0.0.1]vlink-peer 3.3.3.3
AR3
[Huawei-ospf-1-area-0.0.0.1]vlink-peer 2.2.2.2
建成邻居后 是P2P的一个链路
[Huawei]dis ospf vlink
OSPF Process 1 with Router ID 3.3.3.3
Virtual Links
Virtual-link Neighbor-id -> 2.2.2.2, Neighbor-State: Full
Interface: 30.1.1.2 (GigabitEthernet0/0/0)
Cost: 1 State: P-2-P Type: Virtual
Transit Area: 0.0.0.1
Timers: Hello 10 , Dead 40 , Retransmit 5 , Transmit Delay 1
GR State: Normal
[Huawei]ping 4.4.4.4
PING 4.4.4.4: 56 data bytes, press CTRL_C to break
Reply from 4.4.4.4: bytes=56 Sequence=1 ttl=253 time=40 ms
Reply from 4.4.4.4: bytes=56 Sequence=2 ttl=253 time=40 ms
Reply from 4.4.4.4: bytes=56 Sequence=3 ttl=253 time=30 ms
Reply from 4.4.4.4: bytes=56 Sequence=4 ttl=253 time=30 ms
Reply from 4.4.4.4: bytes=56 Sequence=5 ttl=253 time=30 ms
--- 4.4.4.4 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 30/34/40 ms
AR2
[Huawei-ospf-1-area-0.0.0.1]vlink-peer 3.3.3.3 simple cipher 123
AR3
[Huawei-ospf-1-area-0.0.0.1]vlink-peer 2.2.2.2 simple cipher 123
测试连通性,AR4 PING AR1
<Huawei>ping 1.1.1.1
PING 1.1.1.1: 56 data bytes, press CTRL_C to break
Reply from 1.1.1.1: bytes=56 Sequence=1 ttl=253 time=40 ms
Reply from 1.1.1.1: bytes=56 Sequence=2 ttl=253 time=30 ms
Reply from 1.1.1.1: bytes=56 Sequence=3 ttl=253 time=40 ms
Reply from 1.1.1.1: bytes=56 Sequence=4 ttl=253 time=30 ms
Reply from 1.1.1.1: bytes=56 Sequence=5 ttl=253 time=50 ms
--- 1.1.1.1 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 30/38/50 ms
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