Hi Shawn,
This looks like your router has changed its ifIndexes for its ports. You
need persistent indexes enabled to prevent this.
I thought this was default these days, but maybe not.
https://www.cisco.com/c/en/us/td/docs/routers/7600/ios/15S/configuration/guide/7600_15_0s_book/ifindx.pdf
This is a throwback problem to the 90s :)
We name port RRDs by the ifIndex, and devices should maintain ifIndexes
across reboots, but for historical reasons some didn't in the olden days.
adam.
Shawn L via observium wrote on 21/08/2023 11:45:
After having a router reboot over the weekend, some graphs are no
longer displaying data and new graphs have been created.
From the first screenshot, some graphs like processors are populating
correctly, while others like traffic are empty. This router has been
in observium for years. The only thing that changed was a reboot over
the weekend due to a power issue. No upgrades, changes, etc.
In some cases, the "old" graph for an interface is showing nothing,
but a new graph for that interface seems to have been automatically
created and is now showing data (second screenshot).
Is there any way to fix this? I could probably delete the device
completely and re-add it, but I hate to loose all of the historical
data from it.
thanks
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