So my question is regarding half duplex switches connected to hosts. Consider a case where a switch is connected to a host by a single link. In an event where a switch decides to forward a frame to that host, it starts to transmit the frame over the link. However, the receiving host could decide to send a frame at the same time as the switch, resulting in a collision.
My question is, since the switch is only responsible for forwarding frames to hosts, how would it ever retransmit the corrupted frame even if it manages to detect collision ?