TRENDnet TEG-S224 Series, Руководство пользователя, Страница: 51 / 206

Stackable NWay Ethernet Switch User’s Guide
Switch Management Concepts 37
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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.
? ? 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 STA specifications. Each 10Mbps and
100Mbps segment has an assigned Path Cost of 19.
User-Changeable STA 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 : 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