Multipath TCP (MPTCP) extends traditional TCP to allow reliable end-to-end delivery over multiple simultaneous TCP paths, and is coming as a tech preview on Red Hat Enterprise Linux 8.3. This is the first of two articles for users who want to practice with the new MPTCP functionality on a live system. In this first part, we show you how to enable the protocol in the kernel and let client and server applications use the MPTCP sockets. Then, we run diagnostics on the kernel in a sample test network, where endpoints are using a single subflow.
Continue reading Multipath TCP on Red Hat Enterprise Linux 8.3: From 0 to 1 subflows