Ultimate goal: Monitor all the switch ports (interfaces) in our network that connect to our MPLS WAN service to assess WAN utilization metrics.
Trigger Condition
Trigger Alert when any of the following apply
Interface ID is equal to 1 {I wish I could add a comment here so I know what '1' refers to}
Interface ID is equal to 161
Interface ID is equal to 219
Interface ID is equal to 216
Trigger Alert when all of the following apply
Average Xmit-Recv Percent Utilization is greater than 90
Do not trigger this action until condition exists for more than 1 seconds
Reset Condition
Same as above except Utilization is less than or equal to90
Do not reset this action until condition exists for more than 10 minutes
Trigger Actions
Send E-Mail...
General
Alert Evaluation Frequency: Check this Alert every 1 minutes
To test this Alert I tried ridiculously low numbers, but I wasn't getting the results I expected/wanted, so I decomposed it into 1 simple alert to no avail.
PROBLEM: I provide unrealistic threshold values just to test functionality but I only receive 1 email alert notification after I initially enable the Alert.
I decomposed 'Average Xmit-Recv Percent Utilization' to 'Recv Percent Utilization' and set the value to a ridiculous value of 1
The trigger condition must exist for more than 1 minute
The Reset Condition is set to the basic 'Reset when trigger conditions are no longer true'
The Alert is checked every 1 minute
Trigger actions: Send me an email (that contains...)
Interface Full Name
InPercentUtil
AlertTriggerTime
AlertTriggerCount {This inserted just to test if consecutive alerts triggered}
I'm expecting to receive a continuous flow of email traffic, but I'm not - why not?Your advice, suggestions, comments, shared misery is welcome!
Theories:
1. The utilization value reported is a snapshot in time and not a calculated valued based over a period of time
2. There is a relationship to the polling interval that I'm not considering