If the polling fails, then MRTG will get a Unknown value.
In MRTG, Unknown is displayed as the previous value. If you have ‘unknaszero’ option, then it is displayed as zero. If you are using Routers2/RRDTool/MRTG, then Unknown is displayed as a grey bar. Use ‘unknaszero’ to display unknowns as zero, and ‘unknasprev’ to display unknowns as the previous value (as in native MRTG). You will normally be polling every 5 minutes, and so you would need to refresh your graph every 5 minutes to see the changes. Steve Steve Shipway [email protected] From: mrtg [mailto:[email protected]] On Behalf Of Massimo Cucchi (Europe) Sent: Monday, 29 September 2014 10:38 p.m. To: [email protected] Subject: Re: [mrtg] data whel poll is not available The unknaszero value show me the last value and if is equal as example a number of phones registered into the callmanager that remain equal … I think is necessary to have a refresh every example 5 minutes for update the last value. How I can solve it ? Thank you Massimo From: mrtg [mailto:[email protected]] On Behalf Of Massimo Cucchi (Europe) Sent: lunedì 29 settembre 2014 09:35 To: [email protected] Subject: Re: [mrtg] data whel poll is not available Hi Guys, A quick question, When I poll a Memory into a cisco router I receive a correct value , but if there are issues on polling the graph show me always the last value obtained (Iand I can’t understand if there are some problem) , how can I show on the graph a “zero” value based on an error of polling device ? Thank you Massimo Massimo Cucchi Architect Dimension Data Italia SpA Tel: +39 02 553907265 Mob: +39 335 7186226 Fax: +39 02 55303587 [email protected] Via G. Di Vittorio 24, Peschiera Borromeo, Milan, 20068, Italy. Dimension Data is an NTT Group company. For further information about Dimension Data, please go to <http://www.dimensiondata.com/> www.dimensiondata.com Follow us on Social Media Blog <http://blog.dimensiondata.com> Facebook <http://www.facebook.com/pages/Dimension-Data-Europe/208242309194429> LinkedIn <http://www.linkedin.com/company/dimension-data> Twitter <http://twitter.com/DimensionData> P please consider the environment before printing this email itevomcid
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