RE: mrtg on STM-16 makes strange graphs
Hi
I had the same problem I solved when I used the snmp v2 counter
--snmp-options=:::::2
this is also necessary if traffic is more than ~100Mbit/s
Tomas
-----Original Message-----
From: Pierfrancesco Caci [mailto:ik5pvx@home.tippete.net]
Sent: Wednesday, October 15, 2003 5:58 PM
To: debian-isp@lists.debian.org
Subject: mrtg on STM-16 makes strange graphs
Hello, I'm having a strange problem using mrtg (woody, kept uptodate
with security) to monitor STM-16 interfaces on Cisco hardware. On some
interfaces only (which I could not correlate to a different hardware or
IOS version) I see the data in the log file, I can see the
"min/avg/max" lines below all the images, but the graph is a flat line
at 4b/s.
I can see this effect on both sides of a link, on 2 different routers,
using 2 different model of line card.
This link is the only one having this effect at the moment, and it's
actually the only one that has a constant rate above 1.5 Gb/s, with
peaks up to 2.3.
I've obviously tried to "clear counter" on the interface, to delete
the logs and start from scratch.... nothing, after a while it's the
same flat graph. Which is actually quite annoying when you have to
point out a link that needs upgrade ;-)
Anyone else ever seen this ?
These are the first lines of the .log file:
1066233010 551948614209927 596551269291258
1066233010 257490042 280391210 257490042 280391210
1066232410 255561340 280607526 255561340 280607526
1066232400 255561340 280607526 255561340 280607526
1066232100 255505806 280665083 255561340 281935775
1066231800 254279798 281935775 254279798 281935775
1066231500 254288034 281922509 254526898 281935775
1066231200 254526898 281537817 254526898 281537817
1066230900 254477756 281493130 254526898 281537817
1066230600 253052643 280197210 253052643 280197210
1066230300 252860122 280324175 253052643 282101687
1066230000 250164831 282101687 250164831 282101687
1066229700 250042329 282176616 250164831 283830834
1066229400 247337883 283830834 247337883 283830834
1066229100 247179875 283606358 247337883 283830834
1066228800 243387702 278218950 243387702 278218950
1066228500 243025153 277536789 243387702 278218950
I have the doubt that rateup can't cope with numbers bigger than
<somevalue> but I'm not sure.
Ideas?
Ciao
Pf
--
-------------------------------------------------------------------------------
Pierfrancesco Caci | ik5pvx | mailto:p.caci@tin.it - http://gusp.dyndns.org
Firenze - Italia | Office for the Complication of Otherwise Simple Affairs
Linux penny 2.4.21-ac1 #1 Sat Jun 14 22:51:10 CEST 2003 i686 GNU/Linux
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