Network Router User Manual

156 GINA V4.0 System Administrator Guide – September 2000
Overview
Figure 35 is a symbolic representation of the hierarchies in the definition of the system. It is
not drawn to scale to reflect the scope of the individual sub-descriptions.
Figure 35 The logical hierarchy when defining the communication structure of a system
The communication structure of a system can be depicted by a graph with nodes and
edges. The nodes correspond to the applications, while the edges represent the communi-
cation channels. The blocks in the diagram define the nodes of the graph with respect to
the specific system, host or application. The edges of the graph represent the applications’
connections, with each application connected to all of the other applications.
From the input data (which has already been explained), the configuration generator
config-tux creates the following output data:
– for each host
a GINA-specific address file containing all addressable server applications.
– for each application
a GINA-specific address file containing all addressable server applications and client
applications.
– for each transaction-monitored application
a GINA-specific environment file preset with the definition of the GINACONFIG environ-
ment variable.
A1
etc.
A2
Application-specific parameters
System-wide settings
Parameters valid throughout the system
Participating host: H1, H2, etc.
Host-specific parameters
R1
etc.
R2
Applications in R1, R2 etc.