False device down alerts received in Smarts IP and SAM suite.
SMARTS - 10.1.X
"Connectivity" setting not added for custom threshold group in Polling & Thresholds ->Thresholds ->System Resource Groups -><CustomUserGroup>
section.
Devices with down alerts are associated with the custom group created by user.
Thresholds->System Resource Groups-><CustomUserGroup>
tab/window.IP objects related to the devices added in custom Polling and Threshold group are not instrumented by Smarts, causing Smarts to diagnose the device as down in IP suite and down alert raised in SAM Global Console accordingly.