Dell PowerEdge M IO Aggregator Command Reference Manual page 203

In Figure 15-4, the host and server are exchanging traffic which passes through the uplink interface 1/1.
Port 1/1 is the monitored port and port 1/42 is the destination port, which is configured to only mirror
traffic received on tengigabitethernet 1/1 (host-originated traffic).
Figure 15-4. Port Monitoring Example
/42
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