D-Link xStack DGS-3426P User Manual - Gvrp Setting

xStack DGS-3400 Series Layer 2 Gigabit Ethernet Managed Switch 

GVRP Setting 

                                                                              Figure 7- 7. GVRP Settings window 

Click Apply to implement changes made. See table below for description of parameters. 

The following fields can be set: 

Parameter                 Description 

Unit 

Select the switch in the switch stack to be modified. 

From/To 

These two fields allows the range of ports that will be included in the Port-based VLAN created 

using the 802.1Q Port Settings window, to be specified. 

GVRP 

The GARP VLAN Registration Protocol (GVRP) enables the port to dynamically become a member 

of a VLAN. GVRP is Disabled by default. 

Ingress Check 

This field can be toggled using the space bar between Enabled and Disabled. Enabled enables the 

port to compare the VID tag of an incoming packet with the PVID number assigned to the port. If 

the two are different, the port filters (drops) the packet. Disabled disables ingress filtering. Ingress 

Checking is Enabled by default. 

Acceptable 

Frame Type 

This field denotes the type of frame that will be accepted by the port. The user may choose 

between Tagged Only, which means only VLAN tagged frames will be accepted, and Admit_All, 

which mean both tagged and untagged frames will be accepted. Admit_All is enabled by default. 

PVID 

The read-only field in the 802.1Q Port Table shows the current PVID assignment for each port, 

which may be manually assigned to a VLAN when created in the 802.1Q Port Settings table. The 

Switch's default is to assign all ports to the default VLAN with a VID of 1.The PVID is used by the 

port to tag outgoing, untagged packets, and to make filtering decisions about incoming packets. If 

the port is specified to accept only tagged frames - as tagging, and an untagged packet is 

forwarded to the port for transmission, the port will add an 802.1Q tag using the PVID to write the 

VID in the tag. When the packet arrives at its destination, the receiving device will use the PVID to 

make VLAN forwarding decisions. If the port receives a packet, and Ingress filtering is enabled, the 

port will compare the VID of the incoming packet to its PVID. If the two are unequal, the port will 

drop the packet. If the two are equal, the port will receive the packet. 

In the Administration menu, open the VLAN folder and

click  GVRP Settings.The  GVRP Settings window,

shown below, allows you to 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, as seen below.

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