OSPF: Read Doyle’s Routing TCPIP v1 for an IGP overview and it’s funny readung a text from 1998 where he really goes into detail to explain the how and why the link state protocols came about – this is against the current texts being written which assume you know the history and simply launch into the details of the protocols. I like the Doyle text – brings you back to basics and some good interview questions there than you can forget to refresh on getting lost in the more advanced OSPF configurations.
Ok, details wise went through basic OSPF confiuration, network commands, use router-id’s, know the various ip ospf … parameters – i.e. priority, mtu-ignore, the multiple show commands such as show ip ospf interface, show ip ospf neighbor, show ip route ospf, etc
Remember the advanced OSPF features such as stub, NSSA, virtual-link and demand circuit are not on the SP Lab!