CCIE Network Design FAQ: OSPF Network Design Q1. What parameters must be matched for OSPF routers to become adjacent? Answer: Hello interval, Dead interval, Wait interval, and the link type. Q2. Is it ever normal for two OSPF routers to reach only a two-way state? When? Answer: Yes; when neither one of them are DR or BDR on a multi-access network. Q3. What is a good way to … [Read more...]