Replace-By-Fee Logic
Replace-By-Fee logic is a specific implementation of transaction replacement that explicitly allows a transaction to be updated by providing a higher fee than the one currently waiting in the mempool. This protocol feature is designed to solve the problem of stuck transactions caused by unexpected network volatility.
By broadcasting a new transaction that carries the same nonce but pays a higher fee, the user signals to the network that the new transaction should supersede the old one. Validators will discard the original transaction once the replacement is successfully mined, provided the rules of the protocol are met.
This mechanism is essential for maintaining liquidity in trading environments where timing is critical. It empowers users to regain control over their assets even when market conditions shift rapidly.