St General - Siemens SCALANCE XB-200 Web Based Management

5.5.8.2

ST General

Configuration of spanning tree
The page consists of the following parts.
● The left-hand side of the page shows the configuration of the device.
● The central part shows the configuration of the root bridge that can be derived from the
spanning tree frames received by an device.
Description of the displayed boxes
The page contains the following boxes:
● Bridge Priority / Root Priority
The Bridge Priority specifies which device becomes the Root Bridge. The Bridge with the
highest priority becomes the Root Bridge. The lower the value, the higher the priority. If
several devices in a network have the same priority, the device whose MAC address has
the lowest numeric value will become the root bridge. Both parameters, bridge priority
and MAC address together form the Bridge identifier. Since the root bridge manages all
path changes, it should be located as centrally as possible due to the delay of the frames.
The value for the bridge priority is a whole multiple of 4096 with a range of values from 0
through 61440.
● Bridge Address / Root Address
The bridge address shows the MAC address of the device and the root address shows
the MAC address of the root bridge.
● Root Port
Shows the port over which the switch communicates with the root bridge.
● Root Cost
The path costs from this device to the root bridge.
SCALANCE XB-200 Web Based Management
Configuration Manual, 04/2015, C79000-G8976-C360-02
Configuring with Web Based Management
5.5 The "Layer 2" menu
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