Network Working Group K. Smith
Request For Comments: 1934 Ascend Communications
Category: Informational April 1996
Ascend's Multilink Protocol Plus (MP+)
Status of This Memo
This memo provides information for the Internet community. This memo
does not specify an Internet standard of any kind. Distribution of
this memo is unlimited.
Abstract
This document proposes an extension to the PPP Multilink Protocol
(MP) [1]. Multilink Protocol Plus (MP+) is a new control protocol for
managing multiple data links that are bundled by MP.
Table Of Contents
1. Introduction.................................................2
1.1 Functional Description...............................2
1.2 Conventions..........................................3
2. General Overview.............................................3
2.1 Operation............................................4
3. MP+ Frame Formats............................................4
3.1 Error Control (EC) Layer.............................6
3.1.1 Error Control State Machine..................7
3.2 Multilink Plus Control Messages......................9
3.3 Multilink Plus Message Formats......................10
3.3.1 VERSION_EXCHANGE_REQ Message Format.........10
3.3.2 VERSION_EXCHANGE_RSP Message Format.........12
3.3.3 ADD_REQ Message Format......................13
3.3.4 ADD_RSP Message Format......................15
3.3.5 ADD_COMPLETE Message Format.................16
3.3.6 REMOVE_REQ Message Format...................17
3.3.7 REMOVE_RSP Message Format...................17
3.3.8 REMOVE_COMPLETE Message Format..............18
3.3.9 CLOSE_REQ Message Format....................19
3.3.10 CLOSE_RSP Message Format....................19
3.3.11 REMOTE_MGMT_REQ Message Format..............20
3.3.12 REMOTE_MGMT_RSP Message Format..............20
3.3.13 REMOTE_MGMT_RX_REQ Message Format...........21
3.3.14 REMOTE_MGMT_TX_REQ Message Format...........22
3.3.15 REMOTE_MGMT_TX_RSP Message Format...........22
3.3.16 CLEAR_REQ Message Format....................23
3.4 Events..............................................23
Smith Informational