D-Link DES-3250TG User Manual page 224

DES-3250TG Layer 2 Fast Ethernet Switch User's Guide
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
messages.
responds to network
216
management