A computer program and method for data communication in a network having a plurality of network nodes, via which method data packets are to be transferred between communication partners over protected connections, wherein the data packets originate from at least two different sending communication partners, or senders, and wherein the sending frequencies of at least two senders, at which the senders send data packets that are to be transferred over a protected connection, differ from one another, and the sending frequencies and/or variables representing same being taken into account when finding a path for the transfer of the data packets of at least one protected connection.