OSPF_这里为什么是2WAY状态
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
OSPF_这里为什么是2WAY状态？
下载 (4.4 KB)
昨天 17:19
拓扑如上图
R4和R3分别是DR和BDR，因此在R1和R2上sh ip os int f0/0时可以看到这两台路由器只与DR 和BDR建立了邻接关系，同样在R4和R3上可以看到这两台路由器与该广播多路访问网络中的所有OSPF路由器都建立了邻接关系，这与书上所描述的完全一致！
但我看到R1和R2路由器间的state是2WAY的，而不是full，我有点纳闷？起初以为是路由器是不是卡在这状态下了，但在DR上clear ip os 1 process后状态仍然是这个样子，我不明白……
R1#s ip os nei
Neighbor ID Pri State Dead Time Address Interface
192.168.1.2 1 2WAY/DROTHER 00:00:35 10.152.222.2 FastEthernet0/0 192.168.1.3 1 FULL/BDR 00:00:36 10.152.222.3 FastEthernet0/0 192.168.1.4 1 FULL/DR 00:00:35 10.152.222.4 FastEthernet0/0
R2#s ip os nei
Neighbor ID Pri State Dead Time Address Interface
192.168.1.1 1 2WAY/DROTHER 00:00:39 10.152.222.1 FastEthernet0/0 192.168.1.3 1 FULL/BDR 00:00:34 10.152.222.3 FastEthernet0/0 192.168.1.4 1 FULL/DR 00:00:32 10.152.222.4 FastEthernet0/0
R3#s ip os nei
Neighbor ID Pri State Dead Time Address Interface
192.168.1.1 1 FULL/DROTHER 00:00:34 10.152.222.1 FastEthernet0/0
192.168.1.2 1 FULL/DROTHER 00:00:38 10.152.222.2 FastEthernet0/0 192.168.1.4 1 FULL/DR 00:00:38 10.152.222.4 FastEthernet0/0
R4#s ip os nei
Neighbor ID Pri State Dead Time Address Interface
192.168.1.1 1 FULL/DROTHER 00:00:30 10.152.222.1 FastEthernet0/0 192.168.1.2 1 FULL/DROTHER 00:00:34 10.152.222.2 FastEthernet0/0 192.168.1.3 1 FULL/BDR 00:00:35 10.152.222.3 FastEthernet0/0
R1#s ip os int f0/0 | b Nei
Neighbor Count is 3, Adjacent neighbor count is 2
Adjacent with neighbor 192.168.1.3 (Backup Designated Router)
Adjacent with neighbor 192.168.1.4 (Designated Router)
Suppress hello for 0 neighbor(s)
R2#s ip os int f0/0 | b Nei
Neighbor Count is 3, Adjacent neighbor count is 2
Adjacent with neighbor 192.168.1.3 (Backup Designated Router)
Adjacent with neighbor 192.168.1.4 (Designated Router)
Suppress hello for 0 neighbor(s)
R3#s ip os int f0/0 | b Nei
Neighbor Count is 3, Adjacent neighbor count is 3
Adjacent with neighbor 192.168.1.1
Adjacent with neighbor 192.168.1.2
Adjacent with neighbor 192.168.1.4 (Designated Router)
Suppress hello for 0 neighbor(s)
R4#s ip os int f0/0 | b Nei
Neighbor Count is 3, Adjacent neighbor count is 3
Adjacent with neighbor 192.168.1.1
Adjacent with neighbor 192.168.1.2
Adjacent with neighbor 192.168.1.3 (Backup Designated Router)
Suppress hello for 0 neighbor(s)。