Lectura rápida
Empieza por la explicación más corta y útil antes de profundizar.
The mechanism by which non-leader validators forward incoming transactions to the current slot leader's TPU port so they can be included in the next block. When a validator receives transactions during slots it is not leading, it relays them to the upcoming leader(s) based on the leader schedule. This forwarding behavior, combined with Gulf Stream's look-ahead, means transactions can reach the leader before its slot begins, reducing confirmation latency.