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Intercepting Session Manager Performance Data

IP.com Disclosure Number: IPCOM000106914D
Original Publication Date: 1992-Jan-01
Included in the Prior Art Database: 2005-Mar-21
Document File: 3 page(s) / 80K

Publishing Venue

IBM

Related People

Temoshenko, L: AUTHOR

Abstract

NPM Release 4 added session manager support to its existing session collection function. This support provided end-to-end session correlation of relay sessions.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Intercepting Session Manager Performance Data

       NPM Release 4 added session manager support to its
existing session collection function.  This support provided
end-to-end session correlation of relay sessions.

      In previous releases of NPM, relay sessions were portrayed as
two separate and unrelated sessions.  There was a session between the
terminal and the session manager; and another between the session
manager and the end application. Although physically correct, it did
not provide customers a way of viewing or correlating the two
separate sessions to create a logical view of one session.

      NPM Release 4 is able to correlate and, in turn, represent the
two underlying physical sessions as one logical session.  The relay
session is represented as one session from the terminal to the end
application.

      This support was implemented through an incore data base which
was named the NetView* Synergy Interface (NSI). It is used by session
managers to send session correlation information and NPM to query for
session correlation information.

      During the development of the session manager support, it
became obvious the traditional data intercept, at the LU-application
boundary, provided a number of inherent problems in this environment.
First, since there are two physical sessions, there would be two
interceptions of the same data.  Second, since the session manager to
application is established before the session manager is able to
provide correlation information to the NSI, the initial session
representation would be corrupt.  Third, since the session manager
sends the application a response before the sessio...