As I understood, " loopguard" is a proprietary Cisco feature and it seems to me that it has an important role in running STP.
So ... I have two questions:
1- Does anyone know the equivalent of the loopgaurd feature in IEEE 802.1D standard? Does an IEEE standard support loopguard-like feature?
2- Does MSTP or RSTP or PVST or... need loopgaurd feature too?