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VLAN
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Certain setups, such as control cabinets, require distinct communication networks for grid operators, devices, and the internet/wide area network (WAN). The blue'Log addresses this requirement with its VLAN feature, which uses virtual networks (VLANs) via a managed switch typically located within the control cabinet. Acting as a network bridge, the blue'Log uses VLANs to define the routes for the networks.
Because the blue'Log has a single Ethernet port, the physical segmentation is delegated to a managed switch where multiple VLANs are defined. It is crucial to align the blue'Log's VLAN configurations with those on the managed switch. This configuration can also extend to the firewall settings.
The graphic below shows how VLAN can be used to provide separate communication networks: the WAN (internet), the grid operator (compliant with IEC 61850), and the devices (control and monitoring)
Example of how VLAN can be used to provide separate communication networks
Set up a VLAN
Prerequisites
You are using blue'Log XC or blue'Log XM
Firmware ≥ 28.0.2 is installed
Steps
Go to System > VLAN.
Select the Plus icon to add a new VLAN.
Fill in the mandatory fields: VLAN ID (range 1-4094), IP address, and Subnet mask
If necessary, fill in the optional fields. Default gateway, Primary DNS server, Secondary DNS server, and modify the MTU (default is 1500).
Select the Disk icon to save.
If all settings are correct, a virtual LAN interface matching the VLAN settings will be created and all configured VLANs will be visible in the list.
Optional: Proceed to the firewall settings: see Firewall.
VLAN configuration
Further actions
Edit or delete VLANs
You can edit or delete the VLAN next to its name in the list.
To delete or edit items in bulk, tick the individual check boxes in the list, or tick the check box to mark all items in the table header and select Edit selected or Delete selected.
If editing: the selected items will be switched to edit mode and the fields can be modified.
You can also select the Save, Cancel, and Delete buttons next to each VLAN, but these only apply to the row where they are selected.