D-Link DGS-3308 Series, Руководство пользователя

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8-port Gigabit Ethernet Switch User’s Guide
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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:
•
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.
Forwarding State
A port in the forwarding state forwards packets. The port enters the forwarding state from the learning state when the
forward delay timer expires.