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Gigabit Ethernet Switch User's Guide
Configure Port Mirroring
The Port Mirroring Configuration screen allows you to copy frames transmitted and received on a port
and redirect the copies to another port. You can attach a monitoring device to the mirrored port, such as a
sniffer or an RMON probe, to view details about the packets passing through the first port. This is useful for
network monitoring and troubleshooting purposes.
Choose Configure Port Mirroring on the System Configuration menu to access the Port Mirroring
Configuration screen:
Figure 6-15. Port Mirroring Configuration screen
To configure a mirror port, select the port from where you want to copy frames in the Source Port field. Then
select the port which receives the copies from the source port in the Target Port field. The target port is where
you will connect a monitoring/ troubleshooting device such as a sniffer or an RMON probe. When you are
finished, change the Status to Enabled and then press APPLY to let your changes take effect.
Configure Spanning Tree Protocol
The Spanning Tree Algorithm Parameters can be used for creating alternative paths in your network. The
Protocol Parameters allow you to change the behind the scene parameters of the Spanning Tree Algorithm at
the bridge level. The parameters for this section have been fully explained in Chapter 5's "Switch
Management Concepts." See STA Operation Levels: On the Bridge level, and User-Changeable Parameters. It is
recommended that you read these sections, as well as the introductory section in the same chapter entitled
Spanning Tree Algorithm before changing any of the parameters.
To change the Protocol Parameters:
1. Choose Configure Spanning Tree Protocol from the System Configuration menu. The following
Configure Spanning Tree Protocol menu will be displayed:
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