  Quantum entanglement is the essential resource for quantum communication and
distributed information processing in a quantum network. However, the remote
generation over a network suffers from inevitable transmission loss and other
technical difficulties. This paper introduces the concept of entanglement
buffers as a potential primitive for preparing long-distance entanglement. We
investigate the filling of entanglement buffers with either one Bell state or a
stream of Bell states. We illustrate their resilience to non-ideal interactions
and transmission loss, making them sometimes more advantageous than other
entanglement generation approaches in the quantum network scenario.
Additionally, larger entanglement buffers can always enhance these benefits.
