RFC 2125 (rfc2125) - Page 1 of 24
The PPP Bandwidth Allocation Protocol (BAP) / The PPP Bandwidth Allocation Control Protocol (BACP)
Alternative Format: Original Text Document
Network Working Group C. Richards
Request for Comments: 2125 Shiva Corporation
Category: Standards Track K. Smith
Ascend Communications, Inc.
March 1997
The PPP Bandwidth Allocation Protocol (BAP)
The PPP Bandwidth Allocation Control Protocol (BACP)
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Abstract
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 co-
ordinate 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.
Table of Contents
1. Introduction .......................................... 2
1.1 Specification of Requirements ................... 2
1.2 Terminology ..................................... 3
2. New LCP Configuration Option .......................... 3
2.1 Link Discriminator .............................. 3
3. BACP Operation ........................................ 4
4. BACP Configuration Options ............................ 5
4.1 Favored-Peer .................................... 5
5. BAP Operation ......................................... 7
5.1 Link Management ................................. 7
5.2 Bandwidth Management ............................ 8
5.3 BAP Packets ..................................... 8
5.4 Race Conditions ................................. 9
5.5 BAP Datagram Format ............................. 9
5.5.1 Call-Request .................................... 12
5.5.2 Call-Response ................................... 12
Richards & Smith Standards Track
