Donnie Savage, Russ White, Don Slice, J. NG and Steven Moore all from Cisco have
published the IETF draft for EIGRP.
You can find it here.
Why would you want to read this draft? If you are a CCIE candidate it should be
obvious why you want to know EIGRP very well. And what better way to confirm your
findings then straight from the horses mouth?
Even if you just want to have a basic look at EIGRP they do a good job of describing
the acronyms used in EIGRP which should be useful for anyone.
I just skimmed through the draft and I wish this had been around when I was studying.
Hopefully this leads to people discussing features when talking about OSPF vs EIGRP
and not just openness.