Link Aggregation - Siemens SCALANCE XM-400 Configuration Manual
Industrial ethernet switches
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- Configuration manual (960 pages) ,
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- Instructions manual (60 pages)
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● 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 this button "Reset to reset the port
again.
Changing the configured port status with loop detection
The configuration of the port status can be changed with the "Loop Detection" function. If, for
example, the administrator has disabled a port, the port can be enabled again after a device
restart with "Loop Detection". The port status "Link down" is not changed by "Loop Detection".
Effects of configuration using STEP 7
The configuration of Spanning Tree can be changed if you configure "Loop Detection" using
STEP 7.
If you enable "Loop Detection" on a port with STEP 7, Spanning Tree is automatically disabled
on this port. If you disable "Loop Detection" for the port again with STEP 7 Spanning Tree is
not automatically enabled. Enable Spanning Tree with the WBM or CLI.
5.5.12
Link aggregation
Bundling network connections for redundancy and higher bandwidth
The link aggregation according to IEEE 802.3ad allows several connections between
neighboring devices to be bundled to achieve higher bandwidths and protection against
failure.
Ports on both partner devices are included in link aggregations and the devices are then
connected via these ports. To assign ports (in other words links) correctly to a partner device,
the Link Aggregation Control Protocol (LACP) from the IEEE 802.3ad standard is used.
Up to 8 link aggregations can be defined. A maximum of 8 ports can be assigned to each link
aggregation.
Note
When a port is assigned to a link aggregation but is not active (e.g. link down), the values
displayed may differ from the values configured for the link aggregation.
If the port in the link aggregation becomes active, individual port configurations such as DCP
forwarding are overwritten with the configured values of the link aggregation.
SCALANCE XM-400/XR-500 Web Based Management (WBM)
Configuration Manual, 05/2017, C79000-G8976-C248-12
Configuring with Web Based Management
5.5 The "Layer 2" menu
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