IETF RFC 2125 PDF

This document proposes a method to manage the dynamic bandwidth allocation of implementations supporting the PPP multilink protocol [2]. This is done by defining the Bandwidth Allocation Protocol (BAP), as well as its associated control protocol, the Bandwidth Allocation Control Protocol (BACP). BAP can be used to manage the number of links in a multilink bundle. BAP defines datagrams to coordinate adding and removing individual links in a multilink bundle, as well as specifying which peer is responsible for which decisions regarding managing bandwidth during a multilink connection.