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I have an interesting task to monitor network traffic. I am monitoring lot of interfaces, mainly RX uplinks in our network. And I have normal graphs. As you can see sometimes on some uplink I see traffic or power of fiber optical line continuously weakening.

I need to define triggers: 1 dB decreasing in 1 hour (if dB value will decrease minus 1 dB in last 1 hour, for example i have -30 dB and in 1 hour will decrease to -31 dB) 1,5 dB decreasing in 1 day 2 dB decreasing in 1 month 2,5 dB decreasing in 6 months 3 dB / 1 year

The goal is to get information "on time" about continuously weakening uplink, because we need to manage on time the repair of the cable.

graph

Richlv
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emmbee
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1 Answers1

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See the "time shift" functionality in trigger functions - you can compare the last value with the value some time (one hour) ago.

More advanced alerting could be implemented with predictive trigger functions, although that does not seem to be necessary for your current needs.

Richlv
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