Dear Community,

 

I received a salvo of false alerts from an HP switch for all its’ interfaces :

 

 

 

Alert checker is pretty standard, it raises an alarm if an interface using over 90% of its’ bandwidth :

 

 

 

 

 

If I look at the eventlogs from the device, I can see a number of events (common to all interfaces) indicating the following :

 

2016-11-30 14:11:20   Interface changed: [ifAlias] X.X.X.X' -> NULL; [ifHighSpeed] '1000' -> NULL; [ifPromiscuousMode] 'true' -> NULL; [ifConnectorPresent] 'true' -> NULL

 

then, a few minutes later after the poller runs a new cycle :

 

2016-11-30 14:16:05   Interface changed: [ifAlias] '' -> 'X.X.X.X'; [ifHighSpeed] '' -> '1000'; [ifPromiscuousMode] '' -> 'true'; [ifConnectorPresent] '' -> 'true'

 

In the end, all alarms cleared out.

 

 

I’m curious to understand why observium would react in such a way. Any one could shed some light ?

 

Thank you.