We don’t really have any Z wave network analysis tools with SmartThings, but I’m not sure it would show what you’re suggesting anyway since it’s a mesh network.
I suspect instead that you should be looking at some of the wellness check options which look at the individual devices and tell you when was the last time they reported and what their battery status is. Knowing when they last reported will tell you when devices have fallen off the network, for example.
There are a number of these created by the community, but I think the most popular right now is “simple device Viewer” which is a really nice smart app with a lot of configuration options.
The fastest way to find these is to look on the quick browse lists in the community – created wiki on the “wellness check” list under smart apps: