VLAN Global

With this dialog you can:

Tab. VLAN Displays

Parameter

Meaning

Max. VLAN ID

Displays the biggest possible VLAN ID (refer VLAN Static)

Max. supported VLANs

Displays the maximum number of VLANs (refer VLAN Static).

Number of VLANs

Displays the number of VLANs configured (refer VLAN Static).


Note: The device provides the VLAN with the ID 1. The VLAN with ID 1 is always present.

Tab. VLAN settings

Parameters

Meaning

Possible values

Default setting

VLAN 0 Transparent Mode

When the VLAN 0 Transparent Mode is activated, the device accepts a VLAN ID of 0 in the packet when it receives it, regardless of the setting for the port VLAN ID in the dialog (refer Port).
Activate “VLAN 0 Transparent Mode” to transmit packets with a priority TAG without VLAN membership, i.e. with a VLAN ID of 0.

On, Off

Off

GVRP active

Activate “GVRP” to ensure the distribution of VLAN information to the neighboring devices via GVRP data packets.

On, Off

Off

Double VLAN Tag Ethertype

Defines the value of the outer VLAN tag which a core port uses when sending a frame.

The selectable values have the following meaning:

  • 0x8100 (802.1Q): VLAN tag

  • 0x88A8 (vman): Provider Bridging

Note: This setting is only effective for a core port. Access ports and normal ports ignore this setting and always use 8100H

0 - 65535

33024 (8100H)

Note: If you are using the GOOSE protocol in accordance with IEC61850-8-1, then you activate the “VLAN 0 transparent mode”. In this way, the prioritizing information remains in the data packet in accordance with IEEE802.1D/p when the device forwards the data packet.
This also applies to other protocols that use this prioritizing in accordance with IEEE 802.1D/p, but do not require any VLANs according to IEEE 802.1Q.

Note: When using the “Transparent Mode” in this way, note the following:

Tab. Settings and displays in the “Learning” frame

Parameters

Meaning

Possible values

Default setting

Mode

Selecting the VLAN Mode.
“Independent VLAN” subdivides the forwarding database (refer Filter for MAC addresses) virtually into one independent forwarding database per VLAN. The device cannot assign data packets with a destination address in another VLAN and it floods them to all the ports of the VLAN.
Application area: Setting up identical networks that use the same MAC addresses.
“Shared VLAN” uses the same forwarding database for all VLANs (refer Filter for MAC addresses). The device cannot assign data packets with a destination address in another VLAN, and so only forwards them to the destination port if the receiving port is also a member of the VLAN group of the destination port.
Application area: In the case of overlapping groups, the device can distribute directly across VLANs, as long as the ports involved belong to a VLAN that can be reached.
Changes to the mode are only applied after a warm start (refer Restart) is performed on the device, and the changes are then displayed in the line below under “Status”.

Independent VLAN,
Shared VLAN

Independent VLAN

Status

Displays the current status. After a warm start (refer Restart) on the device, the device take the setting for the “Mode” into the status line.

Independent VLAN,
Shared VLAN


Buttons

Tab. Buttons (Forts.)

Button

Meaning

“Set”

Transfers the changes to the volatile memory (RAM) of the device. To permanently save the changes afterwards, you open the Basic Settings:Load/Save dialog and click “Save”.

“Reload”

Updates the fields with the values that are saved in the volatile memory (RAM) of the device.

“Clear…”

Resets the VLAN settings of the device to the state on delivery.

Caution: You block your access to the device if you have changed the VLAN ID for the management functions of the device in the Basic Settings:Network dialog.

“Help”

Opens the online help.