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Advanced SNA/IP : A Simple SNA Transport Protocol (RFC1538)

IP.com Disclosure Number: IPCOM000002369D
Original Publication Date: 1993-Oct-01
Included in the Prior Art Database: 2019-Feb-13
Document File: 10 page(s) / 12K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

W. Behl: AUTHOR [+2]

Related Documents

10.17487/RFC1538: DOI

Abstract

This RFC provides information for the Internet community about a method for establishing and maintaining SNA sessions over an IP internet. This memo provides information for the Internet community. It does not specify an Internet standard.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 17% of the total text.

Network Working Group W. Behl Request for Comments: 1538 McDATA Corporation Category: Informational B. Sterling McDATA Corporation W. Teskey I/O Concepts October 1993

Advanced SNA/IP : A Simple SNA Transport Protocol

Status of this Memo

This memo provides information for the Internet community. It does not specify an Internet standard. Distribution of this memo is unlimited.

Abstract

This RFC provides information for the Internet community about a method for establishing and maintaining SNA sessions over an IP internet. While the issues discussed may not be directly relevant to the research problems of the Internet, they may be interesting to a number of researchers and implementors. Any questions or comments relative to the contents of this RFC may be sent to the following Internet address: snaip@mcdata.com.

Table of Contents

1. Introduction.................................................. 2 2. Motivation and Rationale...................................... 2 3. SNA/IP Protocol Specification................................. 3 3.1 Glossary..................................................... 3 3.2 Conventions and Assumptions.................................. 3 3.3 The Protocol................................................. 3 3.3.1 Connection Establishment................................... 3 3.3.2 Data Transfer.............................................. 5 3.3.3 Connection Termination and Loss............................ 6 3.3.4 Session Data Flow.......................................... 7 3.3.5 State Transition Table for the Initiating Node............. 8 4. LLC to SNA/IP Conversion...................................... 8 5. Performance................................................... 8 6. VTAM Definition............................................... 9 7. Acknowledgments............................................... 9 8. References.................................................... 9 9. Security Considerations....................................... 10 10. Authors’ Addresses........................................... 10 11. Disclaimer................................................... 10

Behl, Sterling & Teskey [Page 1]

RFC 1538 Advanced SNA/IP October 1993

1. Introduction

Advanced SNA/IP suggests a method for the transmission of SNA session data over an IP network. This memo documents the SNA/IP protocol as implemented in the McDATA LinkMaster(R) 6200 Network Gateway, McDATA LinkMaster(R) 7100 Network Controller, and I/O Concepts X-Direct TN3270 Server.

Advanced SNA/IP differs from other protocols designed to enable routing of SNA session traffic over an IP network. SNA/IP was originally designed for implementation in peripheral network nodes like SNA gateways and downstream nodes (DSNs). It is the authors’ view, however, that SNA/IP could also be implemented in intermediate network nodes like routers as the base for an LLC to IP subnet gateway or data link switch function.

2. Motivation and Rationale

The token-ring media access con...

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