After spending a lot of time trying to find resources to get up to speed on this networks domain for work, those are the best resources I've found.
Yes, the material is a bit dated. Yes, it won't give you the ins and outs of what you need to know. What it will give you is the why and from there you can figure out everything else you need to know.
Interconnections Bridges Switches and Internetworking Protocols by Radia Perlman
(I'm posting the link here because it took some searching to find the right book and in its current edition).
Get dozens of book recommendations delivered straight to your inbox every Thursday.