Interlogix NS3702-24P-4S User Manual - Manual (Page 148)

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STP calculation of the most current Bridge and Port settings.
Now, if switch A broadcasts a packet to switch C, then switch C will drop the packet at port 2 and the broadcast will end there.
Setting-up STP using values other than the defaults, can be complex. Therefore, you are advised to keep the default factory settings
and STP will automatically assign root bridges/ports and block loop connections. Influencing STP to choose a particular switch as
the root bridge using the Priority setting, or influencing STP to choose a particular port to block using the Port Priority and Port Cost
settings is, however, relatively straight forward.
Figure 4-7-2: Before Applying the STA Rules
In this example, only the default STP values are used.