I make up my own... I draw out the network, think how I want it to work and then build it... I prefer this way as it makes you think about all asepcts. So when Studying, if your reading about ospf build the network in lots of diffent ways... i.E if you have 4 routers, build them in a Chain, create stub areas, and NSSA`s, create loops and play with costs, then redistribute static routes as Type 1 and Type 2 and see how that works... create multiple areas, virtual links etc... so as you go through our study material, it makes you really understand what your readying.... then when you go onto the next protocol, such as BGP, do the same, then create your lap with BGP and OSPF integrating with each other...
LEEroy
MCNE6,CCNP,CWNA,CCSA,Project+