Port mirroring monitors network traffic by sending copies of all incoming and outgoing packets from one port to a mirroring port.

1. Go to Switch Configuration > Basic Configuration > Port Configuration > Port Mirroring.
   Figure 1. Port Mirroring
2. Check Enable of Port Mirroring.
3. Configure the parameters according to the actual situation.

   Table 1. Parameters of Port Mirroring

   Parameter	Description
   Mirror Port	Surveillance port. You can only set one port as the mirror port.
   Mirror Source	The port that is under surveillance. You can set one or more ports as the mirror source.
   Mirror Direction	Surveillance direction. Disable Mirror: The port is not under surveillance. Inbound: The inbound data of the port is under surveillance. Outbound: The outbound data of the port is under surveillance. Inbound and Outbound: Both inbound and outbound data of the port are under surveillance.

4. Click Save to complete the port mirroring configuration.