[mrtg] MRTG Graphs not populating.

[PAUL WILLIAMSON]

Ah yes, index changes - happens all the time.  You can take a few approaches to deal with it.
 
1.  Write your own wrapper that figures out, before each run, if the interfaces descriptions have changed from the last run.  Then perform a scan to see what index that particular description is at now and modify the config to poll that.  I did that when I first started using MRTG, but don't anymore.
 
2.  Use a frontend that handles that sort of stuff.  There are plenty of examples at Tobi's site.
 
3.  Don't poll using index.  Use some other option that stays static.  You probably added an interface or subinterface at some point and then rebooted the device.  You can include a command in the router called something like snmp ifindex persist, but I've found that's not always available.
 
Paul

>>> Scott Danton <scott.danton at gallatin-tn.gov> 4/8/2010 9:47 AM >>>

Ok here is the information
 
I can see why the information is not graphing.  I just need to find out what changed.
 
[root at linux log]# snmpwalk -v 1 -c public 172.16.10.4 ifInOctets
IF-MIB::ifInOctets.1 = Counter32: 3599292404
IF-MIB::ifInOctets.2 = Counter32: 0
IF-MIB::ifInOctets.4 = Counter32: 0
IF-MIB::ifInOctets.13 = Counter32: 935106630
IF-MIB::ifInOctets.14 = Counter32: 933843337
IF-MIB::ifInOctets.15 = Counter32: 343834057
IF-MIB::ifInOctets.16 = Counter32: 2619897798
IF-MIB::ifInOctets.17 = Counter32: 3001469566
IF-MIB::ifInOctets.18 = Counter32: 3774870276
IF-MIB::ifInOctets.19 = Counter32: 3501568946
IF-MIB::ifInOctets.20 = Counter32: 13520013
 
[root at linux log]# snmpwalk -v 1 -c public 172.16.10.4 ifOutOctets
IF-MIB::ifOutOctets.1 = Counter32: 2196936294
IF-MIB::ifOutOctets.2 = Counter32: 0
IF-MIB::ifOutOctets.4 = Counter32: 0
IF-MIB::ifOutOctets.13 = Counter32: 1348735474
IF-MIB::ifOutOctets.14 = Counter32: 2757107875
IF-MIB::ifOutOctets.15 = Counter32: 3130416318
IF-MIB::ifOutOctets.16 = Counter32: 1603004732
IF-MIB::ifOutOctets.17 = Counter32: 1025048043
IF-MIB::ifOutOctets.18 = Counter32: 2364888761
IF-MIB::ifOutOctets.19 = Counter32: 776253377
IF-MIB::ifOutOctets.20 = Counter32: 13520093
 

From:mrtg-bounces+scott.danton=gallatin-tn.gov at lists.oetiker.ch [mailto:mrtg-bounces+scott.danton=gallatin-tn.gov at lists.oetiker.ch] On Behalf Of PAUL WILLIAMSON
Sent: Thursday, April 08, 2010 8:17 AM
To: mrtg at lists.oetiker.ch 
Subject: Re: [mrtg] MRTG Graphs not populating.

 

>From your MRTG box, do this:

 

snmpget -v 1 -c public 172.16.10.4 ifInOctets.12
snmpget -v 1 -c public 172.16.10.4 ifOutOctets.12
snmpget -v 1 -c public 172.16.10.4 ifInOctets.13
snmpget -v 1 -c public 172.16.10.4 ifOutOctets.13

If that doesn't work, try:

 

snmpwalk -v 1 -c public 172.16.10.4 ifInOctets

snmpwalk -v 1 -c public 172.16.10.4 ifOutOctets

 

and make sure the indices haven't changed or something else.

 

Paul


>>> Scott Danton <scott.danton at gallatin-tn.gov> 4/8/2010 8:59 AM >>>

I have attached a text file from config.  I have included 2 pollings.  The first one is not mapping anything and the second is.  They are on the same physical router.  
 
Can you tell me how to run this from the command line?  I will do it and post back.  
 
I am currently running mrtg using this command.  
 
env LANG=C /usr/bin/mrtg /etc/mrtg/Gallatin.cfg
where do I enable logging?  Is it right before the /etc/mrtg/Gallatin.cfg?  after I enable logging where are the logs stored?
 

Thanks for everything,
Scott
 

From:mrtg-bounces+scott.danton=gallatin-tn.gov at lists.oetiker.ch [mailto:mrtg-bounces+scott.danton=gallatin-tn.gov at lists.oetiker.ch] On Behalf Of PAUL WILLIAMSON
Sent: Wednesday, April 07, 2010 3:09 PM
To: mrtg at lists.oetiker.ch 
Subject: Re: [mrtg] MRTG Graphs not populating.

 

Can you poll the device from the command line?  What is the target line from the config?

 

Paul

>>> Scott Danton <scott.danton at gallatin-tn.gov> 4/7/2010 4:02 PM >>>

Does anyone have any ideas on how to troubleshoot why some of my interfaces are not graphing.   Is there something that I can look at to see on either the router or the mrtg server?
 
Thanks,
Scott
 

From:mrtg-bounces+scott.danton=gallatin-tn.gov at lists.oetiker.ch [mailto:mrtg-bounces+scott.danton=gallatin-tn.gov at lists.oetiker.ch] On Behalf Of Scott Danton
Sent: Monday, April 05, 2010 4:13 PM
To: 'mrtg at lists.oetiker.ch'
Subject: [mrtg] MRTG Graphs not populating.

 
I have been monitoring my t-1 lines for about 3 years and have never realy had a problem.  My server crashed and I rebuilt on a VM. It has been so long that I do not remember anything that I had to do to get things running.  I did have some old back ups of cfg file.  I have re-installed and I am haing a strange issue.  I monitor multiple interfaces on 3 devices.  Here is the strange part.  On one device I am collecting information on 2 of the 3 interfaces.  One is completely blank.  The second device collect the information for my remote sites.  I am getting information on 4 of the 7.  So 3 are blank.  On the last device I am missing information on 1 of the 2 interfaces.  The config is the same one I used on the old server so that should not be the problem.  Each device is giving information, so I know the SNMP is working.  I am lost.  Please let me know if you need any further information.
 
Thanks,
Scott************************************This email may contain privileged and/or confidential information that is intended solely for the use of the addressee.  If you are not the intended recipient or entity, you are strictly prohibited from disclosing, copying, distributing or using any of the information contained in the transmission.  If you received this communication in error, please contact the sender immediately and destroy the material in its entirety, whether electronic or hard copy.  This communication may contain nonpublic personal information about consumers subject to the restrictions of the Gramm-Leach-Bliley Act and the Sarbanes-Oxley Act.  You may not directly or indirectly reuse or disclose such information for any purpose other than to provide the services for which you are receiving the information.There are risks associated with the use of electronic transmission.  The sender of this information does not control the method of transmittal or service providers and assumes no duty or obligation for the security, receipt, or third party interception of this transmission.************************************************************************This email may contain privileged and/or confidential information that is intended solely for the use of the addressee.  If you are not the intended recipient or entity, you are strictly prohibited from disclosing, copying, distributing or using any of the information contained in the transmission.  If you received this communication in error, please contact the sender immediately and destroy the material in its entirety, whether electronic or hard copy.  This communication may contain nonpublic personal information about consumers subject to the restrictions of the Gramm-Leach-Bliley Act and the Sarbanes-Oxley Act.  You may not directly or indirectly reuse or disclose such information for any purpose other than to provide the services for which you are receiving the information.There are risks associated with the use of electronic transmission.  The sender of this information does not control the method of transmittal or service providers and assumes no duty or obligation for the security, receipt, or third party interception of this transmission.************************************
************************************
This email may contain privileged and/or confidential information that is intended solely for the use of the addressee.  If you are not the intended recipient or entity, you are strictly prohibited from disclosing, copying, distributing or using any of the information contained in the transmission.  If you received this communication in error, please contact the sender immediately and destroy the material in its entirety, whether electronic or hard copy.  This communication may contain nonpublic personal information about consumers subject to the restrictions of the Gramm-Leach-Bliley Act and the Sarbanes-Oxley Act.  You may not directly or indirectly reuse or disclose such information for any purpose other than to provide the services for which you are receiving the information.
There are risks associated with the use of electronic transmission.  The sender of this information does not control the method of transmittal or service providers and assumes no duty or obligation for the security, receipt, or third party interception of this transmission.
************************************
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.oetiker.ch/pipermail/mrtg/attachments/20100408/f0a44ab1/attachment-0001.htm