The Multipath TCP Daemon Plug-ins package is a collection of plugins for mptcpd, short for Multipath TCP Daemon. These plugins can be used to perform Multipath TCP path management related operations in the user space.

The daemon interacts with the Linux kernel through a generic Netlink connection to track per-connection information (e.g. available remote addresses), available network interfaces, request new MPTCP subflows, handle requests for subflows, etc. Plugins can react on events and requests path management related operations to create subflows, advertise addresses, etc.