Operating principles of S series switches

1. A switch generates a mapping between the source MAC address of a received data frame and the receiving interface, and adds the mapping to the MAC address table.
2. The switch searches for the destination MAC address of the frame in the MAC table to determine through which port to forward this frame.
3. If the destination MAC address is not found in the MAC address table, the switch forwards the frame to all its interfaces except the interface that receives the frame. The process is called flooding.
The broadcast and multicast frames are forwarded to all the interfaces.

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