Gigabit Ethernet Switch User’s Guide
Switch Management
25
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Designated Port
This is the port on each Designated
Bridge that is attached to the LAN segment for which the
switch is the Designated Bridge.
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Port Priority
The smaller this number, the higher the Port
Priority is. With higher Port Priority, the higher the
probability that the port will be selected as the Root Port.
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Path Cost
This is a changeable parameter and may be
modified according to the STA specification.
User-Changeable Parameters
The factory default setting should cover the majority of
installations. However, it is advisable to keep the default settings
as set at the factory; unless, it is absolutely necessary. The user
changeable parameters in the Switch are as follows:
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Bridge Priority
A Bridge Priority can be from 0 to 65535.
0 is equal to the highest Bridge Priority.
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Bridge Hello Time
The Hello Time can be from 1 to 10
seconds. This is the interval between two transmissions of
BPDU packets sent by the Root Bridge to tell all other
Switches that it is indeed the Root Bridge. If you set a Hello
Time for your Switch, and it is not the Root Bridge, the set
Hello Time will be used if and when your Switch becomes
the Root Bridge.
Note that the Hello Time cannot be longer than the Max.
Age. Otherwise, a configuration error will occur.
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Bridge Max. Age
The Max. Age can be from 6 to 40
seconds. At the end of the Max. Age, if a BPDU has still not
been received from the Root Bridge, your Switch will start
sending its own BPDU to all other Switches for permission
to become the Root Bridge. If it turns out that your Switch