RADIUS Extensions for Network-Assisted Multipath TCP (MPTCP)
One of the promising deployment scenarios for Multipath TCP (MPTCP) is to enable a Customer Premises Equipment (CPE) that is connected to multiple networks (e.g., DSL, LTE, WLAN) to optimize the usage of its network attachments. Because of the lack of MPTCP support at the server side, some service providers consider a network-assisted model that relies upon the activation of a dedicated function called: MPTCP Concentrator. This document specifies a new Remote Authentication Dial-In User Service (RADIUS) attributes that carry the IP addresses that allow CPE devices to reach one or multiple MPTCP Concentrators.