<div class="gmail_quote">2009/3/11 Victor Lee <<a href="mailto:durendel@gmail.com">durendel@gmail.com</a>> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> In the course of my learning (just starting out) how to work with Nagios I have found that it isn't aware of layer 2 connections. In other words, if I have 2 switches with a trunk between them Nagios doesn't seem to provide me a way to either note that manually on the map nor does it seem to be aware of that type of connectivity. The same applies to servers, there doesn't seem to be a way to identify which switch a server is connected to. Now I admit this might be due to my limited knowledge of the product so I ask the members here. Am I correct in this assessment? </blockquote></div> This isn't really what nagios does.. You might want to looks at something like opsview if you want a picture of your network like that. Also, fwiw, I think what you're really asking for is a layer 1 map if you want to know what host is plugged into what port - layer2 would be like what host is on a particular broadcast domain. I think most people give up on the nagios map pretty quickly, or at the most setup a few partent/child hosts and leave it at that. .r'