Loop Guard on Root ports

Hi all,

I understand that Loop Guard should be enabled on non-designated ports (root and alternate ports) to prevent loops in case BPDUs stop being received. However, I’m not clear on why it makes sense to enable Loop Guard on a root port, since the root port is already in a forwarding state by default.

If the purpose of Loop Guard is to prevent both ends of a segment from forwarding traffic simultaneously, what’s the point of enabling it on a root port that is already forwarding? Wouldn’t it be redundant, since the port is intended to forward traffic in normal operation anyway?

Thanks :)