Richard, That did it! Thank you.
Tim Huffman Director of Engineering Business Only Broadband 777 Oakmont Lane, Suite 2000, Westmont, IL 60559 Direct: 630.590.6012 | Main: 630.590.6000 | Fax: 630.986.2496 [email protected] | http://www.bobbroadband.com/ Cell: 630.340.1925 | Toll-Free Customer Support: 877.262.4553 please consider the environment prior to printing -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Richard Brown Sent: Tuesday, August 23, 2011 10:25 PM To: InterMapper Discussion Subject: Re: [IM-Talk] Comparing a parameter and MIB variable Tim, Thanks for the question. > I've got a parameter (PCN_value, expected signal level on a radio), which I > trying to compare to a MIB variable ($RSL, actual signal level), and alarm on. > > I need to alarm if the ($RSL/10) is less than ($PCN_value - 5). What's the > best way to accomplish this? You'll need to make a SNMP probe, and replace these three sections of the probe. 1) <parameters> Here's where you specify the PCN threshold that the customer enters 2) <snmp-device-variables> This is where you specify the SNMP OID(s) to retrieve. You can also do calculations here. 3) <snmp-device-thresholds> This does the actual comparison and sets the device status. An easy way to get a probe template is the Interactive SNMP Probe Builder at http://intermapper.com/probebuilder.aspx Fill in the Descriptive Text and the Optional Configuration fields. Leave the SNMP MIB Variables and OIDs and Thresholds fields blank, since you're going to provide them (see sample below). The "The SNMP Probe File" on the page has text that you can copy into a text document and import into InterMapper. (using File -> Import... -> Probe) I haven't tested this code, but the three sections mentioned above would look something like the code at the end of this message. Update that text file and re-import. Please get back to me if you have questions. Thanks. Rich Brown [email protected] Dartware, LLC http://www.intermapper.com 66-7 Benning Street Telephone: 603-643-9600 West Lebanon, NH 03784-3407 Fax: 603-643-2289 ------------------ -- Customer enters the parameter for PCN. Defaut set to 10. You should substitute a real value. <parameters> PCN = "10" </parameters> -- Retrieve the SNMP variable 1.3.6.1.4.1.xxxx and set the variable $RSL to that value -- Compute $RSL10 by dividing $RSL by 10 -- Compute the PCN threshold by subtracting 5 from $PCN <snmp-device-variables> RSL, 1.3.6.1.4.1.xxxx, DEFAULT, "Received Signal Level" RSL10, $RSL/10, CALCULATION, "RSL/10" PCNthresh, $PCN-5, CALCULATION, "PCN less 5" </snmp-device-variables> -- Compare $RSL10 to $PCNthresh. If it's lower, then set the device status to Alarm <snmp-device-thresholds> Alarm: $RSL10 < $PCNthresh "RSL ($RSL10) is too low (below $PCNthresh)" </snmp-device-thresholds>.+-j?!?????i??0?f?????+?r???{^?f????jY8?X??????y?&?:.??????m? ???j)m???z????M?d?????]j?pj???
