Gvrp Configuration; Garp - HP A6600 Configuration Manual

GVRP configuration

This feature is available on only a SAP interface card working in bridge mode.
The GARP provides a generic framework for devices in a switched LAN, such as end stations and
switches, to register and deregister attribute values. The GVRP is a GARP application that registers and
deregisters VLAN attributes. GVRP uses the operating mechanism of GARP to maintain and propagate
dynamic VLAN registration information for the GVRP devices on the network.

GARP

GARP provides a mechanism that allows participants in a GARP application to distribute, propagate, and
register with other participants in a LAN the attributes specific to the GARP application, such as VLAN or
multicast address attributes.
How GARP works
Each port that participates in a GARP application (for example, GVRP) is a GARP participant.
GARP enables GARP participants to propagate attribute values throughout the switched LAN. As shown
in Figure 43, a GARP participant registers and deregisters its attribute values with other GARP
participants by sending and withdrawing declarations, and registers and deregisters the attribute values
of other participants according to the declarations and withdrawals it has received.
Figure 43 How GARP works
Device A
For example, a GVRP-enabled port registers and deregisters VLAN in the following cases.
When the port receives a VLAN attribute declaration, it registers the VLAN attribute and joins the
•
VLAN.
When the port receives a VLAN withdrawal, it deregisters the VLAN and leaves the VLAN.
•
GARP messages
A GARP participant exchanges information with other GARP participants by sending GARP messages:
Join, Leave, and LeaveAll. As a GARP application, GVRP also uses GARP messages for information
exchange.
Declaration
De-register
Declaration withdrawal
Register
Device B
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