Why does a trunk interface not load balance packets with different MAC addresses

The load balancing function of the trunk interface takes effect only for known unicast packets.

To enable the load balancing function of the trunk interface for broadcast packets, Layer 3 multicast packets, and unknown unicast packets on the S3752 and the S5700, you can run the unknown-unicast load-balance command in the system view. At present, the S3728 and the S2700 do not support this command.

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