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DAS-3626 VDSL2 Switch User Manual
Figure 40. GVRP Settings menu
The following fields can be set:
Parameter Description
From Port / To Port
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.
GVRP
The Group VLAN Registration Protocol (GVRP) enables the port to dynamically become a
member of a VLAN. GVRP is
Disabled
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.
Ingress Checking
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
Disabled
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.
Click
Apply
to implement changes made.
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