D-Link xStack DGS-3120 Series, Reference Manual

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xStack® DGS-3120 Series Layer 3 Managed Gigabit Ethernet Switch Web UI Reference Guide
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Click the Show All button to display all the Protocol VLANs configured.
Click the Delete All button to remove all the entries listed.
Click the Edit button to re-configure the specific entry.
Click the Delete button to remove the specific entry.
Asymmetric VLAN Settings
Shared VLAN Learning is a primary example of the requirement for Asymmetric VLANs. Under normal
circumstances, a pair of devices communicating in a VLAN environment will both send and receive using the same
VLAN; however, there are some circumstances in which it is convenient to make use of two distinct VLANs, one
used for A to transmit to B and the other used for B to transmit to A in these cases Asymmetric VLANs are needed.
An example of when this type of configuration might be required would be if the client was on a distinct IP subnet,
or if there was some confidentiality-related need to segregate traffic between the clients.
To view this window click L2 Features > VLAN > Asymmetric VLAN Settings , as shown below:
Figure 4-10 Asymmetric VLAN Settings window
Click Apply to implement changes.
GVRP
GVRP Global Settings
Users can determine whether the Switch will share its VLAN configuration information with other GARP VLAN
Registration Protocol (GVRP) enabled switches. In addition, Ingress Checking can be used to limit traffic by filtering
incoming packets whose PVID does not match the PVID of the port. Results can be seen in the table under the
configuration settings.
To view the following window, click L2 Features > VLAN > GVRP > GVRP Global Settings , as shown below:
Figure 4-11 GVRP Global Settings window
The fields that can be configured are described below:
Parameter Description
GVRP State Click the radio buttons to enable or disable the GVRP State.
Join Time (100-100000) Enter the Join Time value in milliseconds.