D) The destination address of the message is a unicast MAC address, then look up the MAC address table, and if found, forward the frame to the corresponding port (excluding the source port)
A) The destination address of the packet is a unicast MAC address, but there is no corresponding entry in the MAC address table, the packet is discarded
B) If the MAC address entry of the device reaches the upper specification limit of the device, the device cannot learn a new MAC address entry, and the data packet is discarded.
A) The destination address of the packet is a unicast MAC address, but there is no corresponding entry in the MAC address table, the packet is discarded
B) If the MAC address entry of the device reaches the upper specification limit of the device, the device cannot learn a new MAC address entry, and the data packet is discarded.
A) The destination address of the packet is a unicast MAC address, but there is no corresponding entry in the MAC address table, the packet is discarded
I believe option A is incorrect because if there is no corresponding entry in the MAC address table, the packet is flooded to all ports, not discarded.
Carissa
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