D-Link DES-3526 - Switch - Stackable User Manual - Gvrp Setting
xStack DES-3526 / DES-3526DC Layer 2 Stackable Fast Ethernet Managed Switch User Manual
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GVRP Setting
In the Configuration menu, open the VLANs folder and click GVRP Setting.
The 802.1Q Port 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.
Figure 6- 42. 802.1Q Port Settings window
The following fields can be set:
Parameter Description
From/To
These two fields allow you to specify the range of ports that will be included in the Port-based
VLAN that you are creating using the 802.1Q Port Settings window.
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.