Two Multilayer Switches, working in a Transparent Switching mode without STP, is connected as follows: Station A, Switch A(port 1/1) & Switch B(port 2/1) are connected to Segment A. Station B, Switch A(port 1/2) & Switch B (port 2/2) are connected to Segment B. And also, both Switches has got populated that Stn A is connected in 1/1 & 2/1.
When Stn A send a packet to Stn B, packet is forwarded by both switches to Stn B. However, when Stn B acknowledges back to Stn A, the packet will be dropped by both bridges. Why is it so ?