Hi all,
I'm fairly new to Zenoss and we are a NOC with over 800 devices. We are currently using Nagios but my task is to move us over to Zenoss fully. I definitely have some questions and I hope it's ok to ask from a newbie to Zenoss! What I will do is ask each one in a new discussion so it helps other newbies seeking the same help 
I see that each class has monitoring templates and some have more than others depending on the device. Most of them, however, don't have any thresholds. In order to have a threshold as opposed to getting a trap (polling vs. trapping), how does one set up the various thresholds because it seems fairly cryptic. Is there a good tutorial on creating various thresholds? I am thinking of things like increasing interface errors on switches/routers or various ones for windows devices. I know that there are folders of data sources in the monitoring template so I'm assuming I need to have these OID's as a data source in order to monitor for thresholds or is that incorrect?
We rely mostly on traps and thresholds and we are trying to be as proactive vs. reactive as possible that's why this is so important to know.
Thanks for any help!