Cross-site INT over heterogeneous P4 testbeds between Japan and Taiwan

This paper demonstrates the cross-site heterogeneous P4-INT testbeds between NCHC of Taiwan and NICT of Japan. NCHC and NICT have constructed Tofino-based and BMv2-based testbeds, respectively. To explore P4 technology together, we interconnect the testbeds via the multiple submarine cables through Los Angeles and Singapore. To monitor the statistics of the international testbed, we apply the INT technology for collecting real-time data. The proposed mechanism can help us explore various routing optimization algorithms to improve network performance in the future.