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DES-7200 Configuration Guide Chapter 10 MSTP Configuration
10-17
Figure-21
If the BPDU message is received from the Port Fast enabled port, its Port Fast
operational state is disabled. At this time, this port will execute the forwarding by
normal STP algorithm.
10.2.2 Understanding
AutoEdge
If the specified port doesn’t receive the BPDU message sent by the downstream
port within a certain period of time (3 seconds), the port will be considered that it
connects a network device and set as an edge port to enter the Forwarding
status directly. An edge port will be automatically identified as a non-edge port
after receiving the BPDU message.
You can disable the automatic identification function of the edge port by the
spanning-tree autoedge disabled command.
This function is enabled by default.