I multiply the target by -1 to graph RSSI on our Trango gear. Keeps the same number and makes it positive for graphing.... Steve Swords unWired Broadband, Inc. <http://www.unwiredbb.com/> http://www.unwiredbb.com [EMAIL PROTECTED] 364 W. Fallbrook Ste. 102 Fresno, Ca 93711 (559) 261-4444 ext 502 (559) 261-4445 (Fax)
_____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Craig Metzer Sent: Wednesday, April 18, 2007 8:53 AM To: [email protected] Subject: [mrtg] Problem with Negative Numbers Im trying to poll a satellite modem for Rx Signal Level. The modem returns a negative integer ten times the level (ex. -575 indicates the level is -57.5 dBm). Ive configured a conversion function so I can log the value returned by snmpget and compare it to the value in the log file. It appears that MRTG is not recognizing the number as negative. It appears it is not recognizing the binary 1 MSD as a negative sign. =========== Config file: ConversionCode: functs.pl Target[my-pub-sat-01-rsl]: .1.3.6.1.4.1.6247.28.1.3.3.4.0&.1.3.6.1.4.1.6247.28.1.3.3.4.0:[EMAIL PROTECTED] sat-01.domain.gov|neg_int ========== Functs.pl: sub neg_int { my $n = shift; open FH, ">> rx_lvl.log"; # my $o = (2^31 - $n) / 10; my $o = $n / 10; print FH localtime(time) . " -> IN: $n\tOUT: $o\n"; close FH; return $o; } =========== Logs: $head my-pub-sat-01-rsl.log 1176910486 2147483590 2147483590 1176910486 0 0 0 0 1176910186 0 0 0 0 1176909900 0 0 0 0 1176909600 0 0 0 0 1176909300 0 0 0 0 1176909000 0 0 0 0 $ cat rx_lvl.log Wed Apr 18 16:29:46 2007 -> IN: -578 OUT: -57.8 Wed Apr 18 16:29:46 2007 -> IN: -578 OUT: -57.8 Wed Apr 18 16:34:46 2007 -> IN: -578 OUT: -57.8 Wed Apr 18 16:34:46 2007 -> IN: -578 OUT: -57.8 _____ Dont quit your <http://g.msn.com/8HMAENUS/2743??PS=47575> job Take Classes Online and Earn your Degree in 1 year. Start Today!
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