[mrtg] Stange peaks on graphs

Anton Gnusov gvan+mrtg at kaluga.ru
Wed Jan 21 13:20:28 MET 2004

Sometimes mrtg at data acquisition from the SNMP-agent informs on a

SNMP Error:
no response received
SNMPv1_Session (remote host: "x.x.143.2" [x.x.143.2].161)
                  community: "yy"
                 request ID: 197766777
                PDU bufsize: 8000 bytes
                    timeout: 2s
                    retries: 5
                    backoff: 1)
 at /usr/local/mrtg-2/bin/../lib/mrtg2/SNMP_util.pm line 487
SNMPGET Problem for ifDescr.2 ifInOctets.2 ifDescr.2 ifOutOctets.2 sysUptime sysName on yy at x.x.143.2::::::v4only
 at /usr/local/mrtg-2/bin/mrtg line 1829
WARNING: Could not match host:'yy at x.x.143.2' ref:'Descr' key:'FastEthernet0/1'
ERROR: Target[zz][_IN_] ' $target->[39]{$mode} ' did not eval into defined data
ERROR: Target[zz][_OUT_] ' $target->[39]{$mode} ' did not eval into defined data

At that moment there is a peak equal approximately to half "MaxBytes"
parameter. If to have
time to look at present a file yy.log in the top line will be:
1074672962 -1 -1
I.e. for any reason SNMP counters for the input and output traffic are
equal -1

OS version - FBSD 4.7, mrtg version - 2.10.13

Unsubscribe mailto:mrtg-request at list.ee.ethz.ch?subject=unsubscribe
Archive     http://www.ee.ethz.ch/~slist/mrtg
FAQ         http://faq.mrtg.org    Homepage     http://www.mrtg.org
WebAdmin    http://www.ee.ethz.ch/~slist/lsg2.cgi

More information about the mrtg mailing list