I am working to get alerting for up\down state on a metro ethernet point to point connection between our two data centers. I have configured the IP SLA Echo operation w/ track and using EEM on 9300 switch at the primary data center (DC-1) to send an email in case the link goes down; or simply, if the switch on the other end of the point to point stops responding to pings from IP SLA Echo. All that is working, I have tested by admin down the point to point interface on the the 9300 at DC-2 switch, and I am able to received an alert when link goes down or when it comes back up.
The main issue is - I would like to keep getting the alert emails until the condition or state of the link changes - i.e. if link goes down, continue to alert until the link comes back up via email.
Other wise, if the point to point goes down I could potentially miss the email alert in case events occurs after hours.