From Single Lane to Highways: Analyzing the Adoption of Multipath TCP in the Internet

  title={From Single Lane to Highways: Analyzing the Adoption of Multipath TCP in the Internet},
  author={Florian Aschenbrenner and Tanya Shreedhar and Oliver Gasser and Nitinder Mohan and J{\"o}rg Ott},
  journal={2021 IFIP Networking Conference (IFIP Networking)},
Multipath TCP (MPTCP) extends traditional TCP to enable simultaneous use of multiple connection endpoints at the source and destination. MPTCP has been under active development since its standardization in 2013, and more recently in February 2020, MPTCP was upstreamed to the Linux kernel. In this paper, we provide the first broad analysis of MPTCPv0 in the Internet. We probe the entire IPv4 address space and an IPv6 hitlist to detect MPTCP-enabled systems operational on port 80 and 443. Our… 

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