Gvrp Timer Settings; Asymmetric Vlan Settings - D-Link xStack DES-3528 series User Manual

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xStack DES-3528/DES-3552 Series Layer 2 Stackable Fast Ethernet Managed Switch User Manual
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
This field denotes the type of frame that will be accepted by the port. The user may choose
Type
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.

GVRP Timer Settings

The GVRP allows interoperability with other switches, so the values of the GVRP timers can be configured. This table
is used to set the GVRP Timer Settings.
To view this window click L2 Features > GVRP Timer Settings
The following fields can be set:
Parameter Description
Join Time
The time in milliseconds that specifies the amount of time between the Switch receiving the
(100-100000) information about becoming a member of the group and actually joining the group. The default
is 200.
Leave Time
The time in milliseconds that specifies the maximum amount of time between the Switch
(100-100000) receiving a leave group message from a host, and the Switch issuing a group membership
query. The default is 600. The Leave Time must be greater than 2 join times.
Leave All Time
The time in milliseconds that specifies the amount of time the Switch will take to Leave All
(100-100000) groups. The default is 10000. The Leave All Time must be greater than the Leave Time.
Click Apply to implement changes made.

Asymmetric VLAN Settings

Shared VLAN Learning is a primary example of the requirement for Asymmetric VLANs. Under normal circumstances,
a pair of devices communicating in a VLAN environment will both send and receive using the same VLAN; however,
there are some circumstances in which it is convenient to make use of two distinct VLANs, one used for A to transmit
to B and the other used for B to transmit to A in these cases Asymmetric VLANs are needed. An example of when this
type of configuration might be required, would be if the client was on a distinct IP subnet, or if there was some
confidentiality-related need to segregate traffic between the clients.
To view this window click L2 Features > Asymmetric VLAN Settings
Figure 3 - 25 GVRP Timer Settings window
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