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Upload to download ratio monitor

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Dear technical team, I want to divide the value of two channels. let me explain more about my problem. i want to divide the send traffic to receive and then multiply it to 100 : (send/receive)*100 , i created a sensor factory and in Channel Definition part i wrote : ((2348,0)/(2348,1))*100 but i got a bad request error : The validation of at least one of the new objects faild because of the following : . At least one channel must be defined. i don't know what to do to resolve this problem. ive to mention that the sensor is port channel interface of a cisco router and it has traffic value in gigabit /s . i would really appreciate it if you could help me, thanks in advance.

devide sensor-factory upload-download-ratio

Created on Mar 17, 2018 10:50:26 AM



6 Replies

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Hello,

thank you for the KB Post. From the description it seems you've missed the keywords Channel in your definition:

(Channel(2348,0)/Channel(2348,1))*100

best regards.

Created on Mar 19, 2018 12:51:07 PM by Torsten Lindner [Paessler Support]



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thanks for your answer , but ive tried with the channel keyword as you mentioned as well , but ive got the error for bad request : The validation of at least one of the new objects failed because of the following : . At least one channel must be defined.

what can i do to resolve the problem?

Created on Mar 25, 2018 6:18:38 AM



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According to the error message, the actual channel number wasn't defined:

#1:Channel_NAME
(Channel(2348,0)/Channel(2348,1))*100

Created on Mar 26, 2018 11:50:40 AM by Torsten Lindner [Paessler Support]



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thanks you very much for the useful hint , i made that change and that's the real error i gave : The validation of at least one of the new objects failed because of the following: Error in channel "UL/DL[]" (4) : Multiplication or division of two delta channels. (code: PE2007)

as i mentioned i want to measure the upload to download ration by dividing the upload and download channel of my uplink's graph , i'd be so appreciated if you could help me solve that.

Created on Apr 3, 2018 4:12:15 AM



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I see, you are using delta based sensors here (Traffic Sensors). You cannot use such sensors in multiplication / division formulas with each other.
You'll have to use two channels here, one for each direction of traffic and calculate a percentage base (for example both to 100 mbit).

Created on Apr 3, 2018 7:40:15 AM by Torsten Lindner [Paessler Support]



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i see , i used zabbix for this issue and it could handle my request. i'd be appreciate that if PRTG could help us for this needs.

Created on Apr 18, 2018 11:22:21 AM




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