1Mbps, ingress rate is 500Kbps. The switch will perform flow control or Back Pressure to confine the ingress rate to meet the specified rate.
In: fill in the port effective ingress rate. The valid range is 0 ~ 1000. The unit is
100K. 0: disable rate control. 1 ~ 1000: valid rate value.
Out: fill in the port effective egress rate. The valid range is 0~1000. The unit is
100K. 0: disable rate control. 1 ~ 1000: valid rate value.
9.Priority: this static priority based on port, if you set the port is high priority, income frame from this port always high priority frame.
10.Security: when the port is in security mode, the port will be “locked” without permission of address learning. Only the incoming packets with SMAC already existing in the address table can be forwarded normally. User can disable the port from learning any new MAC addresses, and then use the static MAC addresses screen to define a list of MAC addresses that can use the secure port.
11.Click Apply 
button to apply all configuration.
12.When you select the port, you can see port current configure shows in below column.
Port Control interface
Trunking
The Link Aggregation Control Protocol (LACP) provides a standardized means for exchanging information between Partner Systems on a link to allow their Link Aggregation Control instances to reach agreement on the identity of the Link
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