OSPF: State Machine

Reference: http://www.rfc-editor.org/rfc/rfc2328.txt (Page 66, section 9.1, Standards Track) Routing TCP/IP Volume 1 page 348 - 349 1. Down: Initial state. No waiting timer set. All parameters set to initial state. No hello exchanges and hence no adjacency formed. 2. Loopback: The interface is looped back using hardware or software means. No data packets will be … Continue reading OSPF: State Machine