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 nonauthenticated packets, and the adjacency will show stuck in INIT. The other side will not detec...
在此状态下,路由器将交换 DBD 数据包,这些数据包描述了其整个链路状态数据库。 路由器也发送链路状态请求数据包,请求从邻居的更加最近的Link State Advertisement (LSA)。 虽然OSPF 邻居在正常的 OSPF 邻接关系构建过程中会转入 exstart/exchange 状态,但是 OSPF 邻居停滞在此状态是不正常的。 以下为 OSPF 邻居停滞...
What could be reason for OSPF neighbors being “stuck in init” ? What could be reason for OSPF neighbors being “stuck in loading” ? What is the algorithm used by OSPF ? What is OSPF Router ID and how is it elected ? What is the DR/BDR in OSPF? How these are elected and in wh...
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 Alarm Information None Handling Process The ...
Therefore, while the ASR and the Cat6K are stuck in the ExStart/Exchange state, would it be possible to temporarily remove the ip nat outside command from the ASR Gi0/0/2 interface to see if that resolves the issue? If so, we'd know that the problem is likely NAT-related, and we...
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...
OSPF Neighbor Stuck in Initialization (INIT) State Es gibt Fälle, in denen der Nachbar im INIT-Zustand feststeckt. Dies bedeutet, dass der Nexus 7000 Hello-Pakete vom Nachbarn sieht, aber seine Router-ID im Hello-Paket nicht sieht, um zum nächsten bidirektionalen Zustand überzu...
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...
Document ID: 13684 Introduction Prerequisites Requirements Components Used Conventions Exstart State Exchange State Neighbors Stuck in Exstart/Exchange State The Solution Related Information Introduction OSPF states for adjacency formation are Down, Init, Attempt, 2−way, Exstart, Exchange, Loading and Full...
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