[mrtg] Re: Wan spikes

[WEYMIENS Bruno FTRD/DMI/SOP]

hi everyone,

I confirm what Keery said : I've got spikes too when information is
retrieved again after a period of no value.

as i'm polling a SNMP MIB, I could check the MIB when it happens, but I'd
have to look at the graph continuously to see a spike and to look at the MIB
immediately...
:-(
hard to do...

I'll try to simulate a problem and see if it happens, but if someone as a
clue, it'd be appreciated.

regards

-----Message d'origine-----
De : Kerry Kincaid. [mailto:kincaid at meer.net]
Envoye : vendredi 31 aout 2001 13:23
A : MRTG (E-mail)
Objet : [mrtg] Wan spikes


I've a Digi Portserver at a remote location that I poll for Ethernet traffic
via SNMP.  However, if for any reason I can not get the value (link down,
high traffic, device problem) for a period of time, as soon as the
information is retrieved, a spike is recorded in my RRD graphs.  

Example:  yesterday my graph was steady at about 2kbps, and most values for
outgoing hover around 2kbps, for about two hours the value was 0 for some
unknown reason, after that two hour period, there is a spike in the graph at
8Mbps.  This is highly unlikely as there are only three terminal on this
unit, and it connects the terminals to a device at our main branch via a 56k
(28cir) frame relay link.  

Is there an option or configuration change that I haven't found in the
manual that can help me resolve this issue.  I have read the manual, but I
think I'm just looking at the right solution from the wrong point of view or
something.  Any help appreciated.

Kerry


--
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

--
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