OSPF Neighbor Stuck in INIT ‚ Cause: Cause: Authentication Is Enabled Only on One Side When authentication is used, it must be enabled on both sides; otherwise, one side will show the neighbor stuck in the INIT state. The router that has authentication enabled will reject all the nonauthe...
OSPF states for adjacency formation there are Down, Init, 2-way, Exstart, Exchange, Loading and Full. There can be a number of reasons why the Open Shortest Path First (OSPF) neighbors are stuck in Exstart/Exchange state. This document focuses on an MTU mismatch between OSPF neighbors that ...
CHANGES STATE TO 2-WAY 00:04:13: IP: s=170.170.11.7 (Serial2.7), d=224.0.0.5, Len 52, rcvd 0, proto=89 00:04:13: OSPF: Rcv DBD from 170.170.11.7 on Serial2.7 seq 0x13FD opt 0x2 flag 0x7 Len 32 mtu 1450 state INIT 00:04:13: OSPF: 2 Way Communication to 170.170.11.7 on...
OSPF建立邻居关系过程(7个状态) down state 接口未开启 init state R1发送hello包到组播地址,R2比较初始化条件 two-way state hello包中neighbor IP 与自己IP地址相同,则改为two-way state 邻居状态 exstart state 开始交换状态,交换空的DBD消息,选举主从关系 exchange state 交换DBD包,包含了LSA的包头信息 loading...
The multicast must still be working bidirectionally, otherwise the neighbors would never proceed beyond the INIT state. Let me ask you: Is it by any chance possible that either the 6509 or the ASR learn about the xxx.xxx.247.242/32 or xxx.xxx.247.243/32 that point through some other ...
Two NE40E connected using Transmission media through MUX as shown in network diagram.OSPF has been configured between two NE40E. After check it has been observed that ospf state on 1st NE40E is in Exchange state and on 2nd NE40E is in Exstart state.i.e it has stuck in to Exchange/Exsta...
Why Does the show ip ospf neighbor Command Reveal Neighbors Stuck in Two-Way State? Why Does the show ip ospf neighbor Command Reveal Neighbors in the Init State? +Show 3 More Contact Cisco Open a Support Case (Requires aCisco Service Contract)...
Exchange state, the routers exchange DBD packets, that is the complete link−state database. Though OSPF peers transition through the exstart states during the normal OSPF adjacency−building process, stuck for long time in this state is abnormal...
然而,有时候在OSPF路由过程中会出现卡在exstart状态的情况,导致网络故障和通信失败。 在OSPF路由过程中,当两台路由器建立邻居关系时,会经过几个状态:down、init、twoway、exstart、exchange和full。而卡在exstart状态是因为 OSPF 网络拓扑 网络故障 原创 momo王...
If the suggestion with temporarily disabling the NAT does not resolve the problem, here is another suggestion: While the neighbors are stuck in the ExStart/Exchange state, would it be possible to configure a SPAN session both on the Cat6K Gi3/1 and ASR Gi0/0/2, and record the traffic ...