● Topology Changes / Last Topology Change
The entry for the device shows the number of reconfiguration actions due to the spanning
tree mechanism since the last startup. For the root bridge, the time since the last
reconfiguration is displayed as follows:
– Seconds: Unit "sec" after the number
– Minutes: Unit min after the number
– Hours: Unit hr after the number
● Bridge hello time [s] / Root hello time [s]
Each bridge sends configuration frames (BPDUs) regularly. The interval between two
configuration frames is the "Hello Time".
Factory setting: 2 seconds
● Bridge Forward Delay[s] / Root Forward Delay[s]
New configuration data is not used immediately by a bridge but only after the period
specified in the Forward Delay parameter. This ensures that operation is only started with
the new topology after all the bridges have the required information.
Factory setting: 15 seconds
● Bridge Max Age[s] / Root Max Age[s]
If the BPDU is older than the specified "Max Age" it is discarded.
Factory setting: 20 seconds
● Reset Counters
Click this button to reset the counters on this page.
4.7.4.3 ST port
When the page is called, the table displays the current status of the configuration of the port
parameters.
To configure them, click the relevant cells in the port table.
Configuring with Web Based Management
4.7 "Layer 2" menu
SCALANCE S615 Web Based Management
Configuration Manual, 11/2019, C79000-G8976-C388-08 225
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