80
All frames, whether classified to the Port VLAN or not, are transmitted with a tag.
Untag All
All frames, whether classified to the Port VLAN or not, are transmitted without a tag.
This option is only available for ports in Hybrid mode.
Allowed VLANs
Ports in Trunk and Hybrid mode may control which VLANs they are allowed to become members of. Access ports
can only be member of one VLAN, the Access VLAN.
The field's syntax is identical to the syntax used in the Enabled VLANs field. By default, a Trunk or Hybrid port
will become member of all VLANs, and is therefore set to
1-4095
.
The field may be left empty, which means that the port will not become member of any VLANs.
Forbidden VLANs
A port may be configured to never become member of one or more VLANs. This is particularly useful when
dynamic VLAN protocols like MVRP and GVRP must be prevented from dynamically adding ports to VLANs.
The trick is to mark such VLANs as forbidden on the port in question. The syntax is identical to the syntax used in
the Enabled VLANs field.
By default, the field is left blank, which means that the port may become a member of all possible VLANs.
Buttons
Submit
: Click to submit changes.
Reset
: Click to undo any changes made locally and revert to previously saved values.
SVL (Shared VLAN Learning)
Shared VLAN Learning allows for frames initially classified to a particular VLAN (based on Port VLAN ID or VLAN tag
information) be bridged on a shared VLAN. In SVL two or more VLANs are grouped to share common source address
information in the MAC table. The common entry in the MAC table is identified by a Filter ID (FID). SVL is useful for
configuration of more complex, asymmetrical cross-VLAN traffic patterns, like E-TREE (Rooted-Multipoint) and
Multi-netted Server. The alternative VLAN learning mode is IVL. The default VLAN learning mode is IVL and not all
switches support SVL. In Independent VLAN Learning, every VLAN uses its own logical source address table as opposed
to SVL where two or more VLANs share the same part of the MAC address table.
This page allows for controlling SVL configuration on the switch. In SVL, one or more VLANs map to a Filter ID (FID). By
default, there is a one-to-one mapping from VLAN to FID, in which case the switch acts as an IVL bridge, but with SVL
multiple VLANs may share the same MAC address table entries.
Delete
A previously allocated FID can be deleted by the use of this button.
FID
The Filter ID (FID) is the ID that VLANs get learned on in the MAC table when SVL is in effect.
No two rows in the table can have the same FID and the FID must be a number between 1 and 63.
VLANs
