Siemens SCALANCE XB-200 Configuration Manual page 210

Configuring with Web Based Management
5.5 The "Layer 2" menu
Table 2 contains the following columns:
● Port
Shows the available ports.
● Setting
Specify how the port handles loop detection frames. Select one of the following options
from the drop-down list:
Note
Test frames create additional network load. We recommend that you only configure
individual switches, for example at branch points of the ring, as "Sender" and the others
as "Forwarder".
– Sender
– Forwarder
– blocked
● Threshold
By entering a number, specify the number of received loop detection frames as of which
a loop is assumed.
● Remote Reaction
Specify how the port will react if a remote loop occurs. Select one of the two options from
the drop-down list:
– No action: A loop has no effect on the port.
– Disable: The port is blocked.
● Local reaction
Specify how the port will react if a local loop occurs. Select one of the two options from
the drop-down list:
– No action: A loop has no effect on the port.
– Disable: The port is blocked
● Status
This box shows whether loop detection is enabled or disabled for this port.
● Source Port
Shows the receiving port of the loop detection frame that triggered the last reaction.
● Source VLAN
This box shows the VLAN ID of the loop detection frame that triggered the last reaction.
This requires that the "VLAN Loop Detection" check box is selected.
● Reset
After a loop in the network has been eliminated, click the "Reset" button to reset the port
again.
210
Loop detection frames are sent out and forwarded.
Loop detection frames from other devices are forwarded.
The forwarding of loop detection frames is blocked.
SCALANCE XB-200/XC-200/XP-200 Web Based Management
Configuration Manual, 07/2016, C79000-G8976-C360-04