I am looking for support for why optical ring topology for MAN is better than star topology. Or viceversa. It seems some people associate ethernet with Star, but carriers use rings? I can't find any information why? And does anybody know who is adopting MAN rings?
I'm especially hoping to find articles and statistics that support/explain these sorts of things. The only papers I find are on Mesh verses Ring topology, no mention of star anywhere? But perhaps I've been looking and looking in all the wrong places? Please help.