connectivity failure between Solarwinds and Netcool ?
Solarwinds does not have a store and forward on demand but then it will always retain the alerts in it, if issue is still present then the alert would be active.
1. If you are talking about Loss of alerts when there is a connectivity failure between Solarwinds - Netcool , you just have to capture the time from what time to what time there was a connectivity issue.
2. Get onto Solarwinds go to active alerts screen , select and clear all alerts that occurred during that time, it would re-trigger the alerts to netcool for active issues but remember there is a problem here, when an alert is re-triggered it would have the latest time stamp and not the previous one.