Problem with interface graph


I have a problem with some interfaces graph on Cisco ISO and Nexus.

The interface graph have plenty of hole on them demit the fact I don’t have any pooling issue …

For exemple :

It’s append only on some interfaces and I don’t find any correlation on the impacted devices or interfaces. (several hardware model, different IOS version, …)

I have try to remove the device and add them again but without success …

I’m stock on this problem for a will now and I don’t find any clue to solve it.

I use LibreNMS on Debian 9 with RRDCached. Here is my validate.php

# /opt/librenms/validate.php 
Component | Version
--------- | -------
LibreNMS  | 1.42.01-82-gfb1656055
DB Schema | 260
PHP       | 7.0.30-0+deb9u1
MySQL     | 10.1.26-MariaDB-0+deb9u1
RRDTool   | 1.6.0
SNMP      | NET-SNMP 5.7.3

[OK]    Composer Version: 1.7.2
[OK]    Dependencies up-to-date.
[OK]    Database connection successful
[OK]    Database schema correct

Thanks for any feedback

Either you’re running snmp v1 and doing more than 125Mbps or you do have performance issues and you should read the performance docs.

I have check on several impacted devices, it seams linked to SNMP v1.
I will switch them to SNMP v2 thanks à lot.