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Smart Managed Compact Switch
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PHOENIX CONTACT
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5.2.5.6
Flow chart for specifying the root path
Figure 5-15
Flowchart for specifying the root path
5.2.5.7
Extended configuration
It may be practical to actively specify the topology that forms from the Spanning Tree Pro-
tocol and not to leave it to the random MAC addresses of the switches involved.
Non-blocking/blocking data paths can thus be influenced and a load distribution specified.
It may also be practical to explicitly deactivate the Spanning Tree Protocol at those ports
that do not participate in Spanning Tree so as to benefit from the fast forwarding function.
The Spanning Tree protocol also must be deactivated at individual ports if two different net-
work segments - both using Spanning Tree - are to be coupled via these ports without the
two tree structures melting to a large Spanning Tree.
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