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The unicast-flood process on R5000 units is devices is the following: if the frame's destination MAC-address is not included in the unit's MAC switch forwarding table, then this frame is flooded to all interfaces besides the sender interface. The distribution occurs until the unit receives a frame with this MAC-address as the sender (i.e., the interface to which the frame was destinated to respond). After that, the R5000 device will learn: it will add this MAC address to the MAC switch forwarding table and map it with the interface from which it was received. If the R5000 device does not learn in 4 seconds, and frames still arrive, then traffic to this direction will be blocked for 4 seconds. Then the process repeats.

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titleFigure - Unicast-flood detection in switch statistics

InfiNet Infinet Wireless units provide unicast-flood protection. If necessary, you can allow unlimited unicast-flood without protection filter through the switch group by setting the check box in "Basic Settings" → "MAC Switch" settings:

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titleFigure - How to allow unicast-flood without protection filter

R5000 units Devices react to unidirectional traffic (which is not a unicast-flood) in a similar manner. This happens, for example, in case of generating "artificial" traffic (using specialized units or software) or when the real traffic is unidirectional. In these cases, it is recommended to allow unlimited unicast-flood  through the switch group without protection filter.