Please help to explain perNodeSettings

[nickluu2018]

Can someone explain to lines inside the perNodeSettings

"perNodeSettings": [
{
"pattern": "EDGE\d+ \(INAP\)", // Regex pattern to match against
"primaryInterfacePattern": "GigabitEthernet0/0/0", // Example setting - any of the above (e.g. warning/critical thresoholds) work
}

Thank you very much