Configuring Port Mirroring - D-Link DGS-3100 User Manual

Configuring Port Mirroring

Switches inherently forward frames to relevant ports only. This creates difficulty when traffic needs to be monitored, either
for information gathering (such as statistical analysis, security traces, etc.) or for troubleshooting higher-layer protocol
operation. The device supports up to 8 source ports.
To enable the use of traffic analysis and monitoring devices, it is recommended enabling the user to specify that a desired
'target' port receives a copy of all traffic passing through a designated 'source' port.
In order to activate Port Mirroring, the target port must belong to the default VLAN.
1. Click L2 Features > Port Mirroring. The Port Mirroring Page opens:
The Port Mirroring Page contains the following fields:
Field
Status
Unit
Target Port
Source Port
Source Port Setting
Field
Unit
Tx
Rx
Both
Figure 3–13. Port Mirroring Page
Description
Enables or disables target port setting. The default is Disabled.
Defines the unit number.
Defines the target port.
Displays the Sniffer Mode and the source port.
Description
Selects the Unit to be displayed.
Indicates the transmit stream of data on the
Indicates the receive stream of data on the port.
Defines the port mirroring on both receiving and transmitting ports.
DGS-3100 Series Gigabit Stackable Managed Switch User Manual
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