D-Link DES-3225G Switch User Manual


 
24-port NWay Ethernet Switch User’s Guide
Web-Based Network Management 135
Port Mirroring
The Switch 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.
To configure a mirror port, select Enabled from the Port
mirroring in pull-down list. In the next field, select the
Source Port from where you want to copy frames. In the
last field, select the Target Port, which receives the copies
from the source port. This is the port where you will
connect a monitoring/troubleshooting device such as a
sniffer or an RMON probe. Click Apply to let the changes
take effect.
Note: You cannot mirror a fast port onto a slower
port. For example, if you try to mirror the traffic
from a 100 Mbps port onto a 10 Mbps port, this