EnGenius EWS Series User Manual page 104

Note
You cannot mirror a faster port onto a slower port. For example, if you try to mirror the
traffic from a 100Mbps port onto a 10Mbps 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. Please note a target port and a source port cannot
be the same port.
Click the Apply button to accept the changes or the Cancel button to discard them.
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