Thank you for your reply. I take it from your response that there is some code that will update the ifLastChange field. 

Unfortunately I can not find it anywhere and as a desperate attempt to see if it were specified anywhere I performed a very dirty search: 'grep -r "ifLastChange" /etc/observium/‘ which yielded nothing of any significance. 

Sorry if you feel I’m being retarded but I simply can’t find it :/

Jake Turner

On 19 Apr 2014, at 03:58, Adam Armstrong <adama@memetic.org> wrote:

On 2014-04-18 21:34, Jake Turner wrote:
Hmm, not sure what documentation is in the code, perhaps I was looking
at the wrong files.
It would appear however that the ifLastChange field is only changed
whenever that particular record gets ‘updated’. The MySQL column has
'on update CURRENT_TIMESTAMP’ as it’s attribute.
I’m thinking of removing that and creating a separate script to update
this column with the interface change time as reported by the device.

If you're not capable of finding where it's updated in the code, you possibly don't want to be modifying the code you can't be bothered to read.

adam.
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