Ascotel IntelliGate 2025/2045/2065
662 Planning a private network Part 3
Use the results to determine the potential savings likely to be achieved with a pri-
vate network.
6.1.3 Routing in a private network
Determining the routing in a private network depends on the following factors:
• Connections between the nodes
• Accesses to the public network
• DDI requirements
• Overflow routing
• Volume of traffic in individual cases
Once the routing has been specified, you can estimate how many B channels are
required between two systems.
6.1.3.1 Connections between nodes
Determine the nodes to be connected with one another:
• The topology can be star-shaped, meshed or a combination of both.
• For reasons of connection reliability it is advisable to ensure that each system
can be reached via at least 2 independent routes (requirement for overflow
routing). See also "Reliability aspects", page 667.
• If possible specify which connections are best implemented virtually via the
public network (e.g. also the integration of GSM subscribers into the private
network).
6.1.3.2 Accesses to the public network
Determine which systems are to have accesses to the public network:
• Which systems are to have virtual networking via the public network? This
question is to be addressed in connection with the type of connection between
two systems. Virtual networking is particularly appropriate for greater distances
with a relatively small volume of traffic.
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