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APPN/HPR in IP Networks APPN Implementers' Workshop Closed Pages Document (RFC2353)

IP.com Disclosure Number: IPCOM000002923D
Original Publication Date: 1998-May-01
Included in the Prior Art Database: 2005-May-22

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

G. Dudley: AUTHOR

Abstract

The APPN Implementers' Workshop (AIW) is an industry-wide consortium of networking vendors that develops Advanced Peer-to-Peer Networking(R) (APPN(R)) standards and other standards related to Systems Network Architecture (SNA), and facilitates high quality, fully interoperable APPN and SNA internetworking products. The AIW approved Closed Pages (CP) status for the architecture in this document on December 2, 1997, and, as a result, the architecture was added to the AIW architecture of record. A CP-level document is sufficiently detailed that implementing products will be able to interoperate; it contains a clear and complete specification of all necessary changes to the architecture of record. However, the AIW has procedures by which the architecture may be modified, and the AIW is open to suggestions from the internet community.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 2% of the total text.

Network Working Group                                          G. Dudley
Request for Comments: 2353                                           IBM
Category: Informational                                         May 1998


                        APPN/HPR in IP Networks
           APPN Implementers' Workshop Closed Pages Document

Status of this Memo

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

Copyright Notice

   Copyright (C) The Internet Society (1998).  All Rights Reserved.

Table of Contents

   1.0  Introduction  . . . . . . . . . . . . . . . . . . . . . . .   2
   1.1  Requirements  . . . . . . . . . . . . . . . . . . . . . . .   3
   2.0  IP as a Data Link Control (DLC) for HPR   . . . . . . . . .   3
   2.1  Use of UDP and IP   . . . . . . . . . . . . . . . . . . . .   4
   2.2  Node Structure  . . . . . . . . . . . . . . . . . . . . . .   5
   2.3  Logical Link Control (LLC) Used for IP  . . . . . . . . . .   8
     2.3.1  LDLC Liveness   . . . . . . . . . . . . . . . . . . . .   8
       2.3.1.1  Option to Reduce Liveness Traffic   . . . . . . . .   9
   2.4  IP Port Activation  . . . . . . . . . . . . . . . . . . . .  10
     2.4.1  Maximum BTU Sizes for HPR/IP  . . . . . . . . . . . . .  12
   2.5  IP Transmission Groups (TGs)  . . . . . . . . . . . . . . .  12
     2.5.1  Regular TGs   . . . . . . . . . . . . . . . . . . . . .  12
       2.5.1.1  Limited Resources and Auto-Activation   . . . . . .  19
     2.5.2  IP Connection Networks  . . . . . . . . . . . . . . . .  19
       2.5.2.1  Establishing IP Connection Networks   . . . . . . .  20
       2.5.2.2  IP Connection Network Parameters  . . . . . . . . .  22
       2.5.2.3  Sharing of TGs  . . . . . . . . . . . . . . . . . .  24
       2.5.2.4  Minimizing RSCV Length  . . . . . . . . . . . . . .  25
     2.5.3  XID Changes   . . . . . . . . . . . . . . . . . . . . .  26
     2.5.4  Unsuccessful IP Link Activation   . . . . . . . . . . .  30
   2.6  IP Throughput Characteristics   . . . . . . . . . . . . . .  34
     2.6.1  IP Prioritization   . . . . . . . . . . . . . . . . . .  34
     2.6.2  APPN Transmission Priority and COS  . . . . . . . . . .  36
     2.6.3  Default TG Characteristics  . . . . . . . . . . . . . .  36
     2.6.4  SNA-Defined COS Tables  . . . . . . . . . . . . . . . .  38
     2.6.5  Route Setup over HPR/IP links   . . . . . . . . . . . .  39
     2.6.6  Access Link Queueing  . . . . . . . . . . . . . . . . .  39
   2.7  Port Link Activation Limits   . . . . . . . . . . . ....