A first communication device communicatively coupled with a second communication device by way of a first network interface and by way of a second network interface parallel to the first network interface prepares object data in accordance with a data partitioning protocol for transmission to the second communication device. The first communication device transmits the prepared object data to the second communication device at an overall data transfer rate that is at least as great as a sum of first and second data transfer rates associated, respectively, with the first and second network interfaces by concurrently transmitting first and second portions of the prepared object data by way of the first and second network interfaces and at the first and second data transfer rates, respectively. Corresponding methods and devices for receiving concurrently transmitted object data by way of parallel network interfaces are also disclosed.