Transaction relay refers to the process by which transactions are shared and propagated across a network. When a user initiates a transaction, it is first broadcast to nearby nodes. These nodes validate the transaction, checking for sufficient funds and adherence to network rules.Once validated, nodes relay the transaction to other nodes, ensuring it spreads through the network. This propagation is essential for reaching consensus, as multiple nodes need to be aware of the transaction for it to be recorded on the blockchain.Efficient transaction relay is crucial for maintaining a responsive and reliable network. Delays in relaying can lead to longer confirmation times, impacting user experience and network performance. Some networks implement strategies to optimize this process, such as prioritizing transactions based on fees or implementing connection protocols that enhance data sharing.Ultimately, transaction relay ensures that all participants in the network have access to the same information, allowing for coordinated validation and eventual inclusion of transactions in the blockchain.