To check the status of your interconnect switches, Use Command below
system health cluster-switch show
If you want to see the list of Switches connected to the storage system
storage show switch
Well you can configure e-mail alerts but it wouldn't be able to get alerts through ASUP, Refer to KB below to configue email alerts for Switch
https://library.netapp.com/ecmdocs/ECMP12370123/html/GUID-523D65B1-05DB-4A27-95F4-4034EF519D6E.html
May i know the Switch Model you are using in case ?
Thanks,
Nayab