Rspan Settings - D-Link DGS-3700-12 User Manual

To configure a mirror port:
1. Change the status to Enabled.
2. Select the Source Port from where you want to the frames to come from.
3. Select the Target Port, which receives the copies from the source port.
4. 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 can cause throughput problems. The port
you are copying frames from should always support an equal or lower speed than the port to
which you are sending the copies. Also, the target port for the mirroring cannot be a member of
a trunk group. Please note a target port and a source port cannot be the same port.

RSPAN Settings

This table controls the RSPAN function. The purpose of the RSPAN function is to mirror the packets to a remote
switch. The packet travels from the switch where the monitored packet is received, through the intermediate switch,
then to the switch where the sniffer is attached. The first switch is also named the source switch. RSPAN VLAN
mirroring will only work when RSPAN Global Settings are enabled. RSPAN redirect function will work when RSPAN is
enabled and at least one RSPAN VLAN has been configured with redirect ports.
To view this window, click Monitoring > Mirror > RSPAN Settings, as shown below:
Enter the VLAN Name or VID and click Add. To remove an entry click Delete, to modify an entry click the
corresponding Modify button.
DGS-3700-12/DGS-3700-12G Series Layer 2 Gigabit Ethernet User Manual
Figure 11- 19 Port Mirror window
Figure 11- 20 RSPAN Settings window
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