As far a setting up an optical metropolitian network goes what do I need to know, I'm going to use it for connecting WiMAX base stations to my network infrastructure (when it gets installed). I've been doing some reading but it's not making much sense to me, I know there are different topologies, circuit or Point to Point. Which would work for me? Does a ring circuit offer reduncany in that if one link between two nodes is disrupted the signal can be put round the other way? Another question, how would I connect the optical to my GigE network that all my servers will run on, wouldn't that be a huge bottleneck?