Data transaction-specific data packets transmitted over a data communications network from a plurality of source computer nodes are processed. A first data packet communication session is established between one source computer node and one destination computer node to transport data transaction specific data packets over a first path through the data communications network. A second alternative data packet communication session is established between the one source computer node and the one destination computer node to transport data transaction specific data packets over a second path that is different from and bypasses the first path. When a condition based on the data transaction-specific data packets is identified, electronic processing circuitry initiates an alteration of the first data packet communication session. After that, the electronic processing circuitry determines whether any data transaction specific data packets associated with the second alternative data packet communication session continue to travel from the one source computer node to the one destination computer node over the second path.