D-Link xStack DGS-3400 Series Reference Manual page 56

x Stack
The following parameters are displayed or can be configured:
Parameter Description
Group ID (1-4) Enter or display the group ID this entry belongs to.
Target Port Tick the check box and enter the port which received the copies from the source port.
State
Use the pull-down menu to enable or disable the mirror group function.
Source Ports User the pull-down menu to add or delete the source port.
Action
RX Source Ports
Only the received packets on the mirror group source ports will be mirrored to the mirror group
target port.
TX Source Ports
Only the sent packets on the mirror group source ports will be mirrored to the mirror group
target port.
Click the Show All Port Mirror Entries
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.
NOTE: Except the master port of a trunking group, target mirror ports cannot be members of a
trunking group. Attempting to do so will produce an error message and the configuration will not
be set.
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DGS-3400 Series Layer 2 Gigabit Ethernet M anaged Sw itch
Figure 2 - 35 Port Mirroring - Edit window
link to return to the Port Mirror Settings window. Click Apply to implement the changes.
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