Incorrect bandwidth detection

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kalyanpabolu
Posts: 246
Joined: Fri Jul 03, 2020 4:18 am

Incorrect bandwidth detection

Post by kalyanpabolu »

Hello Team,

While configuring the Link balancer bandwidth monitoring in Nagios XI (5.8.1), Nagios is detecting 10 Mbps as "Max Speed". But, the actaul "Max Speed" value is 20 Mbps.

Could you please help us to understand how exactly it is fetching the "Max Speed" value?
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ssax
Dreams In Code
Posts: 7682
Joined: Wed Feb 11, 2015 12:54 pm

Re: Incorrect bandwidth detection

Post by ssax »

Please PM me this file:

Code: Select all

/usr/local/nagiosxi/tmp/mrtg-X.X.X.X
Then open that file and run the command at the top (but add 2> /tmp/OUTPUT.txt onto the end of it) and then PM me /tmp/OUTPUT.txt after the command finishes. For example:

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/usr/bin/cfgmaker --show-op-down --noreversedns --zero-speed 100000000 xxxxx@192.168.X.X:161::::2 2> /tmp/OUTPUT.txt
kalyanpabolu
Posts: 246
Joined: Fri Jul 03, 2020 4:18 am

Re: Incorrect bandwidth detection

Post by kalyanpabolu »

Hello,

PFA.

Moderator's Note: The file has been shared with the support team but has been removed from the public forum.
ssax
Dreams In Code
Posts: 7682
Joined: Wed Feb 11, 2015 12:54 pm

Re: Incorrect bandwidth detection

Post by ssax »

That output isn't proper, I don't think you ran the proper command. Please PM me this file so I can construct it for you:
- Change X.X.X.X to the IP of the device you are having issues with

Code: Select all

/usr/local/nagiosxi/tmp/mrtg-X.X.X.X
kalyanpabolu
Posts: 246
Joined: Fri Jul 03, 2020 4:18 am

Re: Incorrect bandwidth detection

Post by kalyanpabolu »

Hello,

PFA.

Moderator's Note: The file has been shared with the support team but has been removed from the public forum.
ssax
Dreams In Code
Posts: 7682
Joined: Wed Feb 11, 2015 12:54 pm

Re: Incorrect bandwidth detection

Post by ssax »

Replied via PM, please check.
kalyanpabolu
Posts: 246
Joined: Fri Jul 03, 2020 4:18 am

Re: Incorrect bandwidth detection

Post by kalyanpabolu »

Hello,

Sent you the file via PM.
ssax
Dreams In Code
Posts: 7682
Joined: Wed Feb 11, 2015 12:54 pm

Re: Incorrect bandwidth detection

Post by ssax »

What is the output of this command?
- Change yoursnmpcommunity and X.X.X.X to the IP of the device showing 10 that should show 20

Code: Select all

snmpget -v2c -c 'yoursnmpcommunity' X.X.X.X:161 ifHighSpeed.2
kalyanpabolu
Posts: 246
Joined: Fri Jul 03, 2020 4:18 am

Re: Incorrect bandwidth detection

Post by kalyanpabolu »

Hello,

Below is the output:
[root@vmaz-nagiosxi ~]# snmpget -v2c -c 'mrtg#429monitor' 10.100.254.119:161 ifHighSpeed.2
IF-MIB::ifHighSpeed.2 = Gauge32: 10
[root@vmaz-nagiosxi ~]#
ssax
Dreams In Code
Posts: 7682
Joined: Wed Feb 11, 2015 12:54 pm

Re: Incorrect bandwidth detection

Post by ssax »

Your remote device is reporting it as 10, this would be an issue with the remote device as we are only returning what the remote device is serving. You'll need to reach out to your vendor of that device and ask them why that is and if there is anything you can do in the remote devices settings in order to have it output 20.
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