  Quantum networks are complex systems formed by the interaction among quantum
processors through quantum channels. Analogous to classical computer networks,
quantum networks allow for the distribution of quantum operations among quantum
processors. In this work, we describe a Quantum Walk Control Protocol (QWCP) to
perform distributed quantum operations in a quantum network. We consider a
generalization of the discrete-time coined quantum walk model that accounts for
the interaction between quantum walks in the network graph with quantum
registers inside the network nodes. QWCP allows for the implementation of
networked quantum services, such as distributed quantum computing and
entanglement distribution, abstracting hardware implementation and the
transmission of quantum information through channels. Multiple interacting
quantum walks can be used to propagate entangled control signals across the
network in parallel. We demonstrate how to use QWCP to perform distributed
multi-qubit controlled gates, which shows the universality of the protocol for
distributed quantum computing. Furthermore, we apply the QWCP to the task of
entanglement distribution in a quantum network.
