Operation Manual

98
Configuration Procedure:
Step
Operation
Description
1 Create Private VLAN. Required. On the VLAN→Private VLAN→PVLAN Config
page, Enter the Primary VLAN and Secondary VLAN, and
then click the Create button.
2 Add ports to Private VLAN Required. On the VLAN→Private VLAN→Port Config
page, select the desired ports
and configure the port
types and click the Add button.
3 Modify VLAN. Optional. On the VLAN→Private VLAN→PVLAN Config
page, select the desired Private VLAN and do the
modification, then click the Apply
button to modify the
information of the corresponding VLAN.
4 Delete VLAN. Optional. On the VLAN→Private VLAN→PVLAN Config
page, select
the desired entry to delete the
corresponding VLAN by clicking the Delete button.
6.9 GVRP
GVRP (GARP VLAN Registration Protocol) is an implementation of GARP (generic attribute
registration protocol). GVRP allows the switch to automatically add or remove the VLANs via
the dynamic VLAN registration information and propagate the local VLAN registration
information to other switches, without having to individually configure each VLAN.

GARP
GARP provides the mechanism to assist the switch members in LAN to deliver, propagate and
register the information among the members. GARP itself does not work as the entity among
the devices. The application complied with GARP is called GARP implementation, and GVRP is
the implementation of GARP. When GARP is implemented on a port of device, the port is called
GARP entity.
The information exchange between GARP entities is completed by messages. GARP defines
the messages into three types: Join, Leave and LeaveAll.
•
Join Message: When a GARP entity expects other switches to register certain attribute
information of its own, it sends out a Join message. And when receiving the Join message
from the other entity or configuring some attributes statically, the device also sends out a
Join message in order to be registered by the other GARP entities.
•
Leave Message: When a GARP entity expects other switches to deregister certain attribute
information of its own, it sends out a Leave message. And when receiving the Leave
message from the other entity or deregistering some attributes statically, the device also
sends out a Leave message.
•
LeaveAll Message: Once a GARP entity starts up, it starts the LeaveAll timer. After the timer
times out, the GARP entity sends out a LeaveAll message. LeaveAll message is to
deregister all the attribute information so as to enable the other GARP entities to
re-register attribute information of their own.
Through message exchange, all the attribute information to be registered can be propagated
to all the switches in the same switched network.