Question

路由器之间建立了OSPF邻居关系，学不到路由。

接口信息R1：GigabitEthernet0/0 is up, line protocol is up Internet address is 192.168.0.1/24, Area 1 Process ID 1, Router ID 1.1.1.1, Network Type BROADCAST, Cost: 1 Transmit Delay is 1 sec, State DR, Priority 1 Designated Router (ID) 1.1.1.1, Interface address 192.168.0.1 No backup designated router on this network Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 Hello due in 00:00:01 Index 3/3, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 1 Last flood scan time is 0 msec, maximum is 0 msec Neighbor Count is 1, Adjacent neighbor count is 1 Adjacent with neighbor 192.168.3.1 Suppress hello for 0 neighbor(s)R2：GigabitEthernet0/2 is up, line protocol is up Internet address is 192.168.0.2/24, Area 1 Process ID 1, Router ID 192.168.3.1, Network Type BROADCAST, Cost: 1 Transmit Delay is 1 sec, State DR, Priority 1 Designated Router (ID) 192.168.3.1, Interface address 192.168.0.2 No backup designated router on this network Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 Hello due in 00:00:05 Index 1/1, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 1 Last flood scan time is 0 msec, maximum is 0 msec Neighbor Count is 1, Adjacent neighbor count is 1 Adjacent with neighbor 1.1.1.1 Suppress hello for 0 neighbor(s)

Answer 1

你这两台设备的DR是一样的，说明你的网络DR、BDR选举有问题。他们都把自己选择成了DR，请问show ip ospf nei detail看到邻居状态是不是full呢，ping对方的地址试一下，可能是单播不同或者mtu不匹配吧。

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追答

最好提供一个拓扑图和详细的LSA信息，及哪一条路由没有计算出来谢谢！

Answer 2

他们都选自己为DR了，请检查一下网络

Answer 3

你好：
我觉得问题很简单，您宣告的路由有问题。

Answer 4

上图 更明白些