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Browse Prior Art Database

DIA Protocol for Deleted Distributions

IP.com Disclosure Number: IPCOM000108408D
Original Publication Date: 1992-May-01
Included in the Prior Art Database: 2005-Mar-22
Document File: 1 page(s) / 54K

Publishing Venue

IBM

Related People

Clark, DK: AUTHOR [+2]

Abstract

A protocol is described which permits efficient communication of deleted distributions between a server and its clients.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 71% of the total text.

DIA Protocol for Deleted Distributions

      A protocol is described which permits efficient communication
of deleted distributions between a server and its clients.

      Document Interchange Architecture (DIA) does not contain a
direct method for a Mail Server to communicate to a Mail Requester
what distributions have been deleted. Instead, a complete list of
unchanged (brief info) and changed (detailed info) mail is provided.
Deleted items are inferred by their absence.  A performance problem
can be introduced when Inbasket lists of any size are involved, since
a significant size and/or volume of traffic is involved for each item
deleted at the Mail Server. Described here is a methodology providing
a mechanism for the Mail Server to send information about the deleted
item explicitly, rather than re-listing all undeleted items and
inferring deletions thereupon.  This implementation consists of 3 new
DIA code points which can be used to identify deleted distributions.
This would be used in cases where a DIA product is required to handle
user-affinity capabilities (two or more Requesters simultaneously
processing an Inbasket for the same user ID).  Advantages are
improved performance on the Mail Server by communicating one short,
identifying distribution, rather than many changed/unchanged entries
(Less database access, DIA datastream building, ASCII-EBCDIC
translation, and communications) and improved performance on the Mail
requester, by receiving shortened un...