D-Link DES-3250TG User Manual page 136

Learning State
A port in the learning state prepares to participate in frame forwarding. The port enters the learning
state from the listening state.
A port in the learning state does the following:
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Discards frames received from the network segment to which it is attached.
•
Discards packets sent from another port on the switch for forwarding.
•
Adds addresses to its forwarding database.
•
Receives BPDUs and directs them to the CPU.
•
Processes and transmits BPDUs received from the CPU.
•
Receives and responds to network management messages.
D-Link DES-3250TG Standalone Layer 2 Switch
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