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D-Link DES-6500 Layer 3 Stackable Gigabit Ethernet Switch
48
VLAN and Trunk Groups
The members of a trunk group have the same VLAN setting. Any VLAN setting on the
members of a trunk group will apply to the other member ports.
Note
: In order to use VLAN segmentation in conjunction with
port trunk groups, you can first set the port trunk group(s), and
then you may configure VLAN settings. If you wish to change
the port trunk grouping with VLANs already in place, you will
not need to reconfigure the VLAN settings after changing the
port trunk group settings. VLAN settings will automatically
change in conjunction with the change of the port trunk group
settings.
Configuring Static VLANs
To create or modify an 802.1Q VLAN:
In the
Configuration
folder, open the
VLAN
folder and click the
Static VLAN Entry
link to
open the following window:
Figure 4- 18. 802.1Q Static VLANs
The 802.1Q Static VLANs menu lists all previously configured VLANs by VLAN ID and
name. To delete an existing 802.1Q VLAN, click the corresponding
Delete
button.
To create a new 802.1Q VLAN, click the
Add
button in the Static VLANs menu. A new
menu will appear, as shown below, to configure the port settings and to assign a unique name
and number to the new VLAN. See the table below for a description of the parameters in the
new menu.
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D-Link DES-6500 Layer 3 Stackable Gigabit Ethernet Switch
49
Figure 4- 19. 802.1Q Static VLANs Entry Settings – Add
To change an existing 802.1Q VLAN entry, double-click on the selected entry in the 802.1Q
Static VLANs menu. A new menu appears, use this to configure the port settings and to assign
a unique name and number to the new VLAN. See the table below for a description of the
parameters in the new menu.
Figure 4- 20. 802.1Q Static VLANs Entry Settings – Modify
Page 68 / 216
D-Link DES-6500 Layer 3 Stackable Gigabit Ethernet Switch
50
The following fields can then be set in either the
Add
or
Modify
802.1Q Static VLANs
menus:
Parameter
Description
Unit
Displays the Unit ID of the switch
−
within the switch stack
−
that the VLAN
will be created on.
VID
(VLAN ID)
Allows the entry of a VLAN ID in the Add dialog box, or displays the VLAN
ID of an existing VLAN in the Edit dialog box. VLANs can be identified by
either the VID or the VLAN name.
VLAN Name
Allows the entry of a name for the new VLAN in the Add dialog box, or for
editing the VLAN name in the Edit dialog box.
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Enabling this function will allow the switch to send out GVRP packets to
outside sources, notifying that they may join the existing VLAN.
Port
Allows an individual port to be specified as member of a VLAN.
Tag
Specifies the port as either 802.1Q tagging or 802.1Q untagged. Checking
the box will designate the port as Tagged.
None
Allows an individual port to be specified as a non-VLAN member.
Egress
Select this to specify the port as a static member of the VLAN. Egress
member ports are ports that will be transmitting traffic for the VLAN. These
ports can be either tagged or untagged.
Forbidden
Select this to specify the port as not being a member of the VLAN and that
the port is forbidden from becoming a member of the VLAN dynamically.
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D-Link DES-6500 Layer 3 Stackable Gigabit Ethernet Switch
51
GVRP Settings
In the
Configuration
menu, open the
VLANs
folder and click
GVRP Setting
.
The
Port VLAN ID (PVID)
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 4- 21. GVRP Setting
The following fields can be set:
Parameter
Description
Unit
Displays the Unit ID of the switch
−
within the switch stack
−
that the VLAN
will be created on.
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
page.
State
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.
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D-Link DES-6500 Layer 3 Stackable Gigabit Ethernet Switch
52
Ingress Checking is disabled by default.
PVID
This read only field in the
GVRP Table
shows the current
PVID assignment for each port.
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.
Configuring Traffic Control (Broadcast/Multicast Storm
Control)
Use the
Traffic Control
menu to enable or disable storm control and adjust the threshold for
multicast and broadcast storms, as well as DLF (Destination Look Up Failure). Traffic control
settings are applied to individual Switch modules.
Figure 4- 22. Traffic Control Settings window
Traffic or storm control is used to stop broadcast, multicast or ARP request storms that may
result when a loop is created. The Destination Look Up Failure control is a method of shutting

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