|Title||HiPerConTracer - A Versatile Tool for IP Connectivity Tracing in Multi-Path Setups|
|Project(s)||NorNet, GAIA, The Center for Resilient Networks and Applications, Simula Metropolitan Center for Digital Engineering|
|Publication Type||Proceedings, refereed|
|Year of Publication||2020|
|Conference Name||Proceedings of the 28th IEEE International Conference on Software, Telecommunications and Computer Networks (SoftCOM)|
|Place Published||Hvar, Dalmacija/Croatia|
|Keywords||HiPerConTracer, Multi-Path Transport, NorNet, NorNet Core, Ping, Traceroute|
Nowadays, we see a steadily increasing number of Internet devices with connections to multiple networks. For example, every smartphone provides mobile broadband and Wi-Fi connectivity. Multi-path transport protocols, like MPTCP, CMT-SCTP or Multipath-QUIC, allow for utilising all connected networks simultaneously. However, while there is a lot of research on the Transport Layer aspects of multi-path transport, there is not much work on the Network Layer perspective, yet.
In this paper, we introduce our Open Source tool HiPerConTracer (High-Performance Connectivity Tracer) for efficient, parallelised, long-term measurements of the path connectivity characteristics among multi-homed Internet systems. HiPerConTracer is now running as a permanent feature in the NorNet Core infrastructure, which is used for research on multi-homed systems, and in particular for research on multi-path transport. Based on the HiPerConTracer data collected in NorNet Core so far, we finally present some interesting results from the analysis of the inter-continental site connectivity between China and Norway in January 2020.