D-Link xStack DES-6500 User Manual - Gvrp Settings
xStack DES-6500 Modular Layer 3 Chassis Ethernet Switch User Manual
GVRP Settings
In the
Configuration
menu, open the
VLANs
folder and click
GVRP
Settings
.
The
GVRP Settings
dialog box, 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- 36. GVRP Settings and GVRP Table window
The following fields can be set:
Parameter Description
Unit
Choose the Switch ID number of the Switch in the switch stack to be modified.
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
GVRP Settings
page.
GVRP
The Group 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 means both tagged and untagged frames will be accepted.
Admit_All
is enabled by default.
PVID
Within the
GVRP Settings
above, the user may specify the default VLAN ID to be
associated with the port being configured for GVRP.
The read only field in the
GVRP 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 a packet is received by the port, 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.
Click
Apply
to implement changes made.
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