Loop Detection - Siemens SCALANCE XB-200 Web Based Management

Configuring with Web Based Management
5.5 The "Layer 2" menu
5.5.9

Loop detection

With the "Loop detection" function, you specify the ports for which loop detection will be
activated. The ports involved send special test frames - the loop detection frames. If these
frames are sent back to the device, there is a loop.
A "Local loop" involving this device means that the frames are received again at a different
port of the same device. If the sent frames are received again at the same port, there is a
"remote loop" involving other network components.
Note
A loop is an error in the network structure that needs to be eliminated. The loop detection
can help to find the errors more quickly but does not eliminate them. The loop detection is
not suitable for increasing network availability by deliberately including loops.
Note
Note that loop detection is only possible at ports that were not configured as ring ports or
standby ports.
Description
● Loop Detection
Enable or disable the loop detection.
● VLAN Loop Detection
Enable or disable the VLAN loop detection.
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SCALANCE XB-200 Web Based Management
Configuration Manual, 04/2015, C79000-G8976-C360-02