This lab covers OSPF on top of IPv4 and IPv6 to establish neighbors using different network types, tune those neighbors to converge in sub-second increments, and shows how you can use ospf interface cost to change the path OSPF selects to route packets around your network.
It's a really fun lab to build and work with, and I recommend you attempt it yourself! The solved and unsolved versions are available for download at the link below
Here's what it looks like:
You can download the lab here: http://1drv.ms/1vBv3U9