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DES-7000/DES-7100 Layer 2 Switch User's Guide
Figure 5-5. Before Applying the STA Rules
In this example, only the default STP values are used.
Figure 5-6. After Applying the STA Rules
Sample Network using STP
The switch with the lowest Bridge ID (switch C) was elected the root bridge, and the ports were
selected to give a high port cost between switches B and C.
Note also that the example network topology is intended to provide redundancy to protect the network
against a link or port failure – not a switch failure or removal. For example, a failure of switch A would
isolate LAN 1 from connecting to LAN 2 or LAN 3.
Switch Management
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