21.1.5 Port sorting when sending frames
When link aggregation is used to send frames, to ensure efficient port use, a port is allocated for each frame to distribute the traffic to ports. The Switch selects and sorts the ports to be automatically sent based on the following information in the frames to be transmitted:
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Destination MAC address
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Source MAC address
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Destination IP address
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Source IP address
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Destination TCP/UDP port number
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Source TCP/UDP port number