Figure 4-12. The Trunk Group in Switch Port Configuration Menu
Port trunking is the ability to group several ports to increase the bandwidth between this switch and another compatible switch. This is an inexpensive way to increase bandwidth. We define port trunking as the ability to group set of ports (up to 4 groups).
Figure 4-13. The Port Mirror in Switch Port Configuration Menu
Port Mirror is to mirror traffic (all frames) from a specific resource port to a target port. This help tracking down network errors or erroneous packet transfers without interrupting the flow of data across the network.
If you want to monitor all receive and transmit packets of one port. You can do the following:
Choose the monitored port in " Source Port "
Choose the corresponding target module, port in “Target Port" choice box.
Click the corresponding "Enabled" check box.
Press "Submit" button
Permanent Address Configuration 
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