xstInstanceCfgTable — Multiple manufacturers; see the original MIB MIB copies (LibreNMS/Observium Community), Edgecore official enterprise switch MIBs, Edgecore MIB copies (Observium Community)
This table is used to configure the property of a specific instance in Multiple Spanning Tree or Rapid Spanning Tree. If Rapid Spanning Tree protocol is in use, the mstInstanceEditIndex is always 0.