Normally, the result of this command "snmpget -Oqv -v2c -c BAW_R 172.16.200.11 1.3.6.1.2.1.2.2.1.10.4" is assign to $input and the same for $output isn't it?? -- View this message in context: http://n2.nabble.com/I-need-help-with-my-rrd-file-tp1120359p1121065.html Sent from the RRDtool Users Mailinglist mailing list archive at Nabble.com.