Istanbul BFT is a consensus mechanism used in blockchain networks to achieve agreement among distributed nodes.This method improves fault tolerance, allowing the network to function smoothly even if some nodes fail or act maliciously. The “BFT” stands for Byzantine Fault Tolerance, which refers to the system’s ability to reach consensus despite the presence of faulty or adversarial nodes.Istanbul BFT specifically enhances performance and speed. It allows a group of validators to propose and sign blocks quickly, making it suitable for applications where transaction speed is crucial.The mechanism operates by enabling a limited number of validators to validate transactions while ensuring security and finality. It efficiently minimizes the chances of forks, which can complicate the transaction history. Overall, Istanbul BFT offers a robust solution for maintaining reliability and transparency in blockchain operations.