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lowest path cost when forwarding a packet from that LAN to the root device. All ports connected to designated bridging
devices are assigned as designated ports. After determining the lowest cost spanning tree, it enables all root ports and
designated ports, and disables all other ports. Network packets are therefore only forwarded between root ports and
designated ports, eliminating any possible network loops.
Once a stable network topology has been established, all bridges listen for Hello BPDUs (Bridge Protocol Data Units)
transmitted from the Root Bridge. If a bridge does not get a Hello BPDU after a predefined interval (Maximum Age), the
bridge assumes that the link to the Root Bridge is down. This bridge will then initiate negotiations with other bridges to
reconfigure the network to reestablish a valid network topology.
Bridge Setting
This section describes how to configure the Spanning Tree Bridge and STP System settings. It allows configuration of STP
System settings that are used by all STP Bridge instances on the switch.
To configure the Spanning Tree Bridge Setting in the web interface:
•
Click Configuration / Spanning Tree / Bridge Settings.
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Select the parameters and write down available value of parameters in the blank field in advanced settings.
•
Enable or disable the parameters in the Advanced Settings.
•
Click Apply and click the Save icon in the upper right corner to save the settings or click Reset to cancel. The
Form will return to the previously saved settings.
