An Implementation and Evaluation of Multipath Communication coded by P4
<Abstract> It is generally complex and costly to build new high-performance infrastructures such as the ones for 5G and beyond. Software-Defined Networking (SDN) is an emerging technology that can dynamically manage networking resources and routing paths. Hence, SDN promisingly reduces the complexity and deployment cost of infrastructure. However, the implementation of SDN requires network devices that support a de-factor protocol (i.e., OpenFlow). Moreover, in an SDN network, the load of network control traffic is likely concentrated on a network control device. Programming Protocol-independent Packet Processors (P4) has been developed to solve the problems in SDN. P4 enables the coding of packet fowarding methods, which don't nescessarily rely on the protocols provided by the network control device. In this paper, we implement a multipath communication mechanism that is coded by P4 for data transfer between SDN switches. We also achieve performance evaluation to show the effectiveness of P4-based multipath communication using UDP traffic. |