OSPF中鄰居建立與鄰接的形成過程分析（8條)

在OSPF中，鄰居的建立，鄰接的形成過程比較容易造成混亂，特總結如下：

The various states in which a neighbor can be are discussed below.

1. Down - the initial state of a neighbor conversation.

2. Attempt - indicates that an attempt should be made to contact the neighbor.

3. Init - hello packet has been received from the neighbor.

4. 2-Way - communication between two routers is bi-directional.

5. ExStart - first step to creating an adjacency between the two neighboring routers.

6. Exchange - the router is sending data description packets to the neighbor.

7. Loading - Link state request packets are sent to the neighbor.

8. Full - the neighboring routers are fully adjacent.

本文轉自 ciscodocu51CTO部落格，原文連結：http://blog.51cto.com/ciscodocu/52762，如需轉載請自行聯系原作者