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The PPP SNA Control Protocol (SNACP) (RFC2043)

IP.com Disclosure Number: IPCOM000002598D
Original Publication Date: 1996-Oct-01
Included in the Prior Art Database: 2019-Feb-16
Document File: 7 page(s) / 9K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

A. Fuqua: AUTHOR

Related Documents

10.17487/RFC2043: DOI

Abstract

This document defines the Network Control Protocols for establishing and configuring Systems Network Architecture (SNA) over PPP and SNA over LLC 802.2 over PPP. [STANDARDS-TRACK]

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 26% of the total text.

Network Working Group A. Fuqua Request for Comments: 2043 IBM Category: Standards Track October 1996

The PPP SNA Control Protocol (SNACP)

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

The Point-to-Point Protocol (PPP) [1] provides a standard method for transporting multi-protocol datagrams over point-to-point links. PPP defines an extensible Link Control Protocol, and proposes a family of Network Control Protocols for establishing and configuring different network-layer protocols.

This document defines the Network Control Protocols for establishing and configuring Systems Network Architecture (SNA) over PPP and SNA over LLC 802.2 over PPP.

Table of Contents

1. Introduction .......................................... 2 1.1 Specification of Requirements ................... 2 1.2 Terminology ..................................... 3 2. A PPP Network Control Protocol for SNA ................ 4 3. Sending SNA PIUs and NLPs. ............................ 5 3.1 Sending SNA XID or FID2 PIUs over LLC ........... 5 3.2 Sending HPR Network Layer Packets (NLPs) ........ 5 3.3 Other Considerations ............................ 6 SECURITY CONSIDERATIONS ...................................... 6 REFERENCES ................................................... 6 ACKNOWLEDGEMENTS... .......................................... 7 CHAIR’S ADDRESS .............................................. 7 AUTHOR’S ADDRESS ............................................. 7

Fuqua Standards Track [Page 1]

RFC 2043 PPP SNACP October 1996

1. Introduction

PPP has three main components:

1. A method for encapsulating multi-protocol datagrams.

2. A Link Control Protocol (LCP) for establishing, configuring, and testing the data-link connection.

3. A family of Network Control Protocols for establishing and configuring different network-layer protocols.

In order to establish communications over a point-to-point link, each end of the PPP link must first send LCP packets to configure and test the data link. After the link has been established and optional facilities have been negotiated as needed by the LCP, PPP must send SNACP packets to choose and configure the SNA network-layer protocol. Once SNACP has reached the Opened state, SNA datagrams can be sent over the link.

The link will remain configured for communications until explicit LCP or SNACP packets close the link down, or until some external event occurs (an inactivity timer expires or network administrator intervention).

1.1. Specification of Requirements

In this document, several words are used to signify the requirements of the specification. These words are often capitalized.

MUST This word, or the adjective "required", mea...

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