3com 3C16491 Manuel D’Utilisation

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Link Type – Choose between Point-to-Point, 
Shared, or Auto for the link type.

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Path Cost – The path cost is used to 
determine the best path between devices. 
The path cost method is used to determine 
the range of values that can be assigned to 
each interface.

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Port Priority – Used in selecting the root 
device, root port, and designated port. The 
device with the highest priority becomes the 
STA root device. However, if all devices have 
the same priority, the device with the lowest 
MAC address will then become the root 
device.

If you modify any of these settings, click Apply 
to save your changes.

Figure 48   Spanning Tree Setup Screen

The Switch allows you to monitor traffic going 
in and out of a particular port. For traffic 
monitoring to work, you need to attach a 
network analyzer to one port and use it to 
monitor the traffic of other ports in the stack.

To set up traffic monitoring, you need to set an 
analysis port (the port that is connected to the 
analyzer), and a monitor port (the port that is 
to be monitored). Once the pair is defined, and 
you enable traffic monitoring, the Switch takes 
all the traffic going in and out of the monitor 
port and copies it to the analysis port.