Have you looked into autodiscovery scheduled daily? Just input your point-point or loopback subnet address range and it will discover and offer to add all your switches for you. More difficult would be interface selection - 10.7 includes trunk vs access interface discovery - if that's accurate enough in your environement then you might be able to set alarms to just trunks. Doesn't take long once a switch is monitored to tag which ports you want to alarm though.
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