staTcPropGroupPorts — Multiple manufacturers; see the original MIB MIB copies (LibreNMS/Observium Community), Edgecore MIB copies (Observium Community)
The complete set of ports currently associated with this TC propagation group. A port can only belong to one group. If a port detects a topology change, this port only notifies other ports in the same group to propagate this topology change, and only needs to clear MAC address learned on these ports.