What is this?

This knowledgebase contains questions and answers about PRTG Network Monitor and network monitoring in general.

Learn more

PRTG Network Monitor

Intuitive to Use. Easy to manage.
More than 500,000 users rely on Paessler PRTG every day. Find out how you can reduce cost, increase QoS and ease planning, as well.

Free Download

Top Tags

View all Tags

Feature request: Hide specific error values from graphs



Some channels generated by XML sensors return specific numerical value when the particular channel does not have valid data. It is not zero, it can be like 999999999999 or 999999999 depending on what particular channel theoretical maximum is.

We can filter out the values by changing the properties of the channel, however we need to be able to see these error states in graph by default. When going thru actual (non error) values, it would be useful to be able to hide specific values from graph without having to go thru settings of each of channel one by one.

add-feature channels improve-prtg

Created on Sep 2, 2019 8:28:35 AM

3 Replies



Thanks for your patience! It would be more feasible to add an exclude list to the Sensor that null's values like that, wouldn't it? :) I assume that this would scale better.

Created on Sep 4, 2019 7:41:57 AM by  Stephan Linke [Paessler Support]



Whatever works for you, as long as by default, it is shown as a spike and not just as a gap. Short spikes are easier to notice than gaps.

Created on Sep 4, 2019 9:04:28 AM



Sorry, that might've been not worded correctly by me - I meant that you could update the script to include a logic that, like this:

if(value >= 99999)
value = 99999

That way you'd see a peak, but not a notoriously high one?

Created on Sep 4, 2019 9:31:19 AM by  Stephan Linke [Paessler Support]

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.