At some time or the other, many of us have felt the need to monitor different statistics regarding the machine connected to our network.
SNMP (Simple Network Management Protocol) provides a standard set of network management tools to do so.
Again, look back in five to 10 minutes, and you will see that the graphs have been filled up with polled statistics.
Now, let us try adding new devices (hosts) and new graphs, and show them on a new graph tree.
Another useful tool is RRDTool, which is supposed to be an open source industry standard—a high-performance data logging and graphing system for time series data.
Both these tools are really powerful and provide a base for many projects.
Now that you have created a device, you will see a link for ‘Create Graphs for this Host’ at the top of the page after creating the device (Figure 5).
After clicking it, in the Create drop-down box under the ‘Graph Templates’ section (Figure 6), select the type of graph you want to create.Enter the username and password as admin and admin, respectively. After you log in, the home page provides you with three options: Create devices, Create graphs and View.It will prompt you to set a new password for admin to secure your Cacti install. If you click on View, you will notice that there’s already a local host device showing a few graphs—Memory Usage, Load Average, Logged In Users and Processes.i can get some basics like http requests and compression statistics however interface stats and most other metrics don't work at all.these are the same checks that previously worked on v10. we use virtual server statistics (connections, trafiic), pool statistics (connections, trafiic), some pool member statistics, active pool member, temperature, partitions, processor informations. traffic per vlan or interface should work via the default interface statistics. Since we would like to see them too, here’s the way to create a new graph tree: If you need to edit an existing graph tree, you can do so in a similar fashion by selecting the ‘Graph Trees’ link under the ‘Management’ section on the left side pane of the Cacti page. Then click on Add next to the tree items to add items to the tree.