A brief overview of how to create TopN reports and add them to dashboards.
In this video we're going to cover adding a TopN report to one of your reports. First select the TopN icon from the main menu, then decide if you want to apply this to a device, device group, or object group. The default is all devices, so I will just continue on. You then select your template. We ship with a lot of default, out of the box templates, but you can define your own which is explained in another video. Define how many results you get pulled back, the percentage and the preferred units. Now, under advanced settings, a pretty useful tool is our concept of work hours. If there are large periods of inactivity that would down weight the average values for maybe interface utilization for example, or any other metric that would be down weighted by periods of inactivity, you can elect to run the TopN report only against the work hours. You would define this for the past week and you define work hours to be 9 to 5, Monday through Friday, only those time frames will populate the TopN report that you'll see. I will leave that all for now and continue on.
The time span, you got a few options here in terms of historical reporting, you can also do projections as well in the table, so if you want to look out for the next seven days, month, six months, depending on how much data you have, those options are available to you as well as specific and relative time spans. The default is today though. Then you have your sort order. The sort order can be fairly important because for this example, most utilize interfaces, if it's left as descending you will see the busiest and most utilized interfaces. If you were toggle this to show you ascending, you would actually look at your least utilized interfaces. Another common way to use this or a situation where you'd want to toggle this is when looking at availability. When I see an ICMP test maybe I'll go to devices, live or dead, you probably don't want to know your most available devices, you want to know your least available devices and that can be toggled here by selecting the appropriate template first off, and then selecting ascending. I'm going to continue.
You then have some table options here where you can determine what the columns will be for the report. I'm going to leave them as is for now and continue on. You have a summary of the report item that we just created, I'm going to hit finish. You now have a ranking of our most utilized interfaces in a table within a dashboard. One last thing I do want to draw your attention to is the chaining feature. Some detail can be lost when looking at averages, I would like to actually look at the shape of the traffic and by doing that chaining action I just showed you, you can actually take a look at how the traffic was shaped out. Diving a little bit deeper than just what is shown in the average utilization for today.
In addition to these videos, remember that the Data Appliance NMS User Manual is available through the NMS UI as shown below. Clicking on the question mark at the top right of any page will automatically bring you to the section of the manual that corresponds to the page you are currently on.