This resource resets the port counters on all Multiple Spanning Tree Instances.
https://134.56.227.163/rest/bridge/1/mstiportstats?action=resetcounters
POST
true
curl -k --cookie PHPSESSID=2j49e4l4ec0rpc9mc3mo01mn84 --data -i https://192.168.1.200/rest/bridge/1/mstiportstats?action=resetcounters
<?xml version="1.0"?> <root> <status> <http_code>200</http_code> </status>