IBM 8275, Руководство пользователя

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Configuration/Status from the Device Configuration Menu. (See Figure 32 .)
The following section lists and describes the STP configuration functions and
related parameters.
Spanning Tree Algorithm:
Indicates if the 8275-416 participates in Spanning Tree Protocol. A status of
Enable means that 8275-416 participates in the STP. Disable means that
8275-416 does not participate in the STP. The default is Enable.
Bridge Priority:
Decimal value which indicates the priority of the 8275-416 . This value
ranges from 0 to 65535. The default value is 32768. The lower the value,
the higher the priority. The 8275-416 with the lowest priority value becomes
the
root (IEEE 802.1D). The default is 32768.
Maximum Age Time:
When the 8275-416 is root , Maximum Age Time is the time in seconds after
which the configuration message used by the Spanning Tree Algorithm is
discarded. The range is between 6 to 40 seconds. The default value is 20
seconds.
Hello Time:
When the 8275-416 is root , Hello Time is the time in seconds that the
8275-416 waits before sending the next configuration message. The value
is range between 1 and 10 seconds. The default value is 2 seconds.
Forward Delay Time:
This value specifies the time spent in
″
Listening and Learning
″
mode before
forwarding packets. The range is between 4 to 30 seconds. The default is
15 seconds.
Cost: This output is automatically calculated. The cost represents the shortest
distance from any switch to the root switch interval for the unit announcing
Figure 32. Spanning Tree Switch Configuration/Status
Chapter 4. Using the Terminal Interface
47