Hi,
Im seeing data spikes of up to 25Mbps on BH’s, AP’s, and SM’s when using MRTG.
My graphs are located at www.norcalbroadband.com/mrtg
Examples of these spikes:
BH:
http://norcalbroadband.com/mrtg/backhau … 4.6_1.html
AP:
http://norcalbroadband.com/mrtg/pop1/northeast/
SM:
http://norcalbroadband.com/mrtg/grandoaks/SM/
Any idea if there is a setting I have mixed up?
Here is a copy of the MRTG config file for the SM I listed above:
# Created by
# /usr/bin/cfgmaker --global ‘workdir: /var/www/mrtg/grandoaks/SM’ --global 'Options[]: growright,bits’ --descint --snmp-options=:::::2 --output=/etc/mrtg/popgo-SM.cfg norcal@192.168.14.36
### Global Config Options
# for Debian
WorkDir: /var/www/mrtg
# or for NT
# WorkDir: c:'mrtgdata
### Global Defaults
# to get bits instead of bytes and graphs growing to the right
# Options[]: growright, bits
workdir: /var/www/mrtg/grandoaks/SM
Options[_]: growright,bits
######################################################################
# System: SM at Grand Oaks
# Description: CANOPY4.2.3 Jul 23 2004 11:13:49
# Contact: SM at Grand Oaks
# Location: Grand Oaks Housing Development
######################################################################
### Interface 1 >> Descr: ‘Motorola PowerQUICC FEC’ | Name: ‘1’ | Ip: ‘192.168.14.3
6’ | Eth: ‘0a-00-3e-f0-a0-c0’ ###
Target[192.168.14.36_1]: 1:norcal@192.168.14.36:::::2
SetEnv[192.168.14.36_1]: MRTG_INT_IP=“192.168.14.36” MRTG_INT_DESCR="Motorola Power
QUICC FEC"
MaxBytes[192.168.14.36_1]: 12500000
Title[192.168.14.36_1]: Traffic Analysis for 1 – SM at Grand Oaks
PageTop[192.168.14.36_1]: <H1>Traffic Analysis for 1 – SM at Grand Oaks</H1>
<TABLE>
<TR><TD>System:</TD> <TD>SM at Grand Oaks in Grand Oaks Housing Development<
/TD></TR>
<TR><TD>Maintainer:</TD> <TD>SM at Grand Oaks</TD></TR>
<TR><TD>Description:</TD><TD>Motorola PowerQUICC FEC </TD></TR>
<TR><TD>ifType:</TD> <TD>ethernetCsmacd (6)</TD></TR>
<TR><TD>ifName:</TD> <TD>1</TD></TR>
<TR><TD>Max Speed:</TD> <TD>100.0 Mbits/s</TD></TR>
<TR><TD>Ip:</TD> <TD>192.168.14.36 ()</TD></TR>
</TABLE>
### Interface 2 >> Descr: ‘Canopy MultiPoint’ | Name: ‘2’ | Ip: ‘172.16.1.4’ | Eth:
‘1a-00-3e-f0-a0-c0’ ###
Target[192.168.14.36_2]: 2:norcal@192.168.14.36:::::2
SetEnv[192.168.14.36_2]: MRTG_INT_IP=“172.16.1.4” MRTG_INT_DESCR="Canopy MultiPoint
"
MaxBytes[192.168.14.36_2]: 12500000
Title[192.168.14.36_2]: Traffic Analysis for 2 – SM at Grand Oaks
PageTop[192.168.14.36_2]: <H1>Traffic Analysis for 2 – SM at Grand Oaks</H1>
<TABLE>
<TR><TD>System:</TD> <TD>SM at Grand Oaks in Grand Oaks Housing Development<
/TD></TR>
<TR><TD>Maintainer:</TD> <TD>SM at Grand Oaks</TD></TR>
<TR><TD>Description:</TD><TD>Canopy MultiPoint </TD></TR>
<TR><TD>ifType:</TD> <TD>ethernetCsmacd (6)</TD></TR>
<TR><TD>ifName:</TD> <TD>2</TD></TR>
<TR><TD>Max Speed:</TD> <TD>100.0 Mbits/s</TD></TR>
<TR><TD>Ip:</TD> <TD>172.16.1.4 ()</TD></TR>
</TABLE>
We are getting the same problems on our mrtg graphs. The spikes really mess our good graphs.
Canopy support might shed some light into this issue.
Nyangu.
mattmann72 wrote: Hi,
Im seeing data spikes of up to 25Mbps on BH’s, AP’s, and SM’s when using MRTG.
My graphs are located at www.norcalbroadband.com/mrtg
Examples of these spikes:
BH:
http://norcalbroadband.com/mrtg/backhau … 4.6_1.html
AP:
http://norcalbroadband.com/mrtg/pop1/northeast/
SM:
http://norcalbroadband.com/mrtg/grandoaks/SM/
Any idea if there is a setting I have mixed up?
Here is a copy of the MRTG config file for the SM I listed above:
# Created by
# /usr/bin/cfgmaker --global ‘workdir: /var/www/mrtg/grandoaks/SM’ --global 'Options[]: growright,bits’ --descint --snmp-options=:::::2 --output=/etc/mrtg/popgo-SM.cfg norcal@192.168.14.36
### Global Config Options
# for Debian
WorkDir: /var/www/mrtg
# or for NT
# WorkDir: c:'mrtgdata
### Global Defaults
# to get bits instead of bytes and graphs growing to the right
# Options[]: growright, bits
workdir: /var/www/mrtg/grandoaks/SM
Options[_]: growright,bits
######################################################################
# System: SM at Grand Oaks
# Description: CANOPY4.2.3 Jul 23 2004 11:13:49
# Contact: SM at Grand Oaks
# Location: Grand Oaks Housing Development
######################################################################
### Interface 1 >> Descr: ‘Motorola PowerQUICC FEC’ | Name: ‘1’ | Ip: ‘192.168.14.3
6’ | Eth: ‘0a-00-3e-f0-a0-c0’ ###
Target[192.168.14.36_1]: 1:norcal@192.168.14.36:::::2
SetEnv[192.168.14.36_1]: MRTG_INT_IP=“192.168.14.36” MRTG_INT_DESCR="Motorola Power
QUICC FEC"
MaxBytes[192.168.14.36_1]: 12500000
Title[192.168.14.36_1]: Traffic Analysis for 1 – SM at Grand Oaks
PageTop[192.168.14.36_1]: <H1>Traffic Analysis for 1 – SM at Grand Oaks</H1>
<TABLE>
<TR><TD>System:</TD> <TD>SM at Grand Oaks in Grand Oaks Housing Development<
/TD></TR>
<TR><TD>Maintainer:</TD> <TD>SM at Grand Oaks</TD></TR>
<TR><TD>Description:</TD><TD>Motorola PowerQUICC FEC </TD></TR>
<TR><TD>ifType:</TD> <TD>ethernetCsmacd (6)</TD></TR>
<TR><TD>ifName:</TD> <TD>1</TD></TR>
<TR><TD>Max Speed:</TD> <TD>100.0 Mbits/s</TD></TR>
<TR><TD>Ip:</TD> <TD>192.168.14.36 ()</TD></TR>
</TABLE>
### Interface 2 >> Descr: ‘Canopy MultiPoint’ | Name: ‘2’ | Ip: ‘172.16.1.4’ | Eth:
‘1a-00-3e-f0-a0-c0’ ###
Target[192.168.14.36_2]: 2:norcal@192.168.14.36:::::2
SetEnv[192.168.14.36_2]: MRTG_INT_IP=“172.16.1.4” MRTG_INT_DESCR="Canopy MultiPoint
"
MaxBytes[192.168.14.36_2]: 12500000
Title[192.168.14.36_2]: Traffic Analysis for 2 – SM at Grand Oaks
PageTop[192.168.14.36_2]: <H1>Traffic Analysis for 2 – SM at Grand Oaks</H1>
<TABLE>
<TR><TD>System:</TD> <TD>SM at Grand Oaks in Grand Oaks Housing Development<
/TD></TR>
<TR><TD>Maintainer:</TD> <TD>SM at Grand Oaks</TD></TR>
<TR><TD>Description:</TD><TD>Canopy MultiPoint </TD></TR>
<TR><TD>ifType:</TD> <TD>ethernetCsmacd (6)</TD></TR>
<TR><TD>ifName:</TD> <TD>2</TD></TR>
<TR><TD>Max Speed:</TD> <TD>100.0 Mbits/s</TD></TR>
<TR><TD>Ip:</TD> <TD>172.16.1.4 ()</TD></TR>
</TABLE>
I had similar issues with various pieces of networking hardware I am monitoring. I was able to edit the spike out of the data files. After upgrading MRTG versions, no random spikes have appeared.
I’m currently using 2.10.15.
Well I updated the version of the software to 2.10.15 and im still getting the spikes. What I find most strange is how the spikes happen at the same time on almost all devices in a 24 hour period. Could they be loosinig gps sync or time sync or something? I have looked through the event log and I didnt see anything in any device that would reflect that.
Matt
Well after more testing I have found that I only have this issue with canopy equipment when and only when I cannot access the devices then can again.
Its like mrtg groups all the data from the time when I could not access the device into the 5 minute period.
Matt
I noticed this a while back as well. It seems to happen when a link drops off.
Here is a good expample…
Traffic Graph with spikes.
http://64.82.252.221/mrtg/10.1.0.115/10 … h_int.html
RSSI Graph showing the link dropping off.
http://64.82.252.221/mrtg/10.1.0.125/10 … -rssi.html
did you ever find a fix to ignore the spikes?
MRTG is doing spikes only when the network communication is lost between the terminal (SNMP Client/MRTG) and the remote devices. I have similar problem with other devices then Canopy, but I guess it’s easy to see when it’s a canopy devices, it’s wireless, so not the same stability of ethernet or ATM.
I tried another RRDTOOL front-end for monitoring and graphing. It’s Cacti. Really great. there’s a C++ daemon who is processing graphing very quickly. MRTG is in perl, and not the best for a large network. Cacti solve many problem, and spikes graph problem.
Have a nice day.
Mathieu de Bellefeuille
Network Administrator
Rocler inc . - www.rocler.com
Motorola CPT201-IL Certified