How can I exclude all the interfaces from my access switches from alerting. I don't want alerts for interfaces when connected PC is shut/removed. I only want alerts on uplinks or specfic links only.
Set the interfaces to be 'unpluggable'.
https://support.solarwinds.com/Success_Center/Network_Performance_Monitor_(NPM)/Orion_NPM_features_history
You could also add a custom property and then make that part of your alert trigger...so, only trigger when <enable alert custom property> equal to "true". You can set the valid values to true, false, or null, and make it a dropdown...then just set the interfaces you want to alert on to "true".