March 2007
Beginner
526 pages
13h 53m
English
book
Introduction to the New Mainframe: z/VSE Basics
by Wolfgang Bosch, Hans Joachim Ebert, Helmut Hellner, G. M. (Jerry) Johnston, Wilhelm Mild, Ingolf Salm, Joerg Schmidbauer, Martin Walbruehl, Mike Ebbers
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414 Introduction to the New Mainframe: z/VSE Basics
17.4.2 What is a subarea network topology?
The distinguishing characteristics of a VTAM subarea network include the
ownership and sharing of SNA resources. A subarea is a collection of SNA
resources controlled by a single VTAM address space.
A single VTAM and the SNA resources it owns is called a
domain. A
cross-domain resource manager (CDRM) allows for communication between
VTAMs in the SNA network. When an LU requests a session to be established
with an LU in a separate VTAM domain, the VTAMs cooperate to establish a
cross-domain session.
Figure 17-4 shows a pure VTAM subarea network. This di ...
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