Huawei quidway s7700 - GVRP Features Supported by the S7700

Field Description Value
Attribute Event Indicates the event that an
attribute describes. The
value can be:
l 0: LeaveAll event
l 1: JoinEmpty event
l 2: JoinIn event
l 3: LeaveEmpty event
l 4: LeaveIn event
l 5: Empty event
Attribute Value
Indicates the value of an
attribute.
The value is a VLAN ID for
GVRP. This field is invalid
in a LeaveAll attribute.
End Mark Indicates the end of a
GARP PDU.
The value is 0x00.
6.2 GVRP Features Supported by the S7700
This section describes the GVRP features supported by the S7700.
GVRP is an application of GARP. Based on the working mechanism of GARP, GVRP maintains
dynamic VLAN registration information in a device and propagates the registration information
to other devices.
After GVRP is enabled on the S7700, the S7700 can receive VLAN registration information
from other devices and dynamically update local VLAN registration information. VLAN
registration information includes which VLAN members are on the VLAN and through which
interfaces their packets can be sent to the S7700. The S7700 can also send the local VLAN
registration information to other devices. By exchanging VLAN registration information, all the
devices on the same LAN have the same VLAN information. The VLAN registration
information transmitted through GVRP contains both static local registration information that
is manually configured and the dynamic registration information from other devices.
A GVRP interface supports three registration modes:
l Normal: In this mode, the GVRP interface can dynamically register and deregister VLANs,
and transmit dynamic VLAN registration information and static VLAN registration
information.
l Fixed: In this mode, the GVRP interface is disabled from dynamically registering and
deregistering VLANs and can transmit only the static registration information. If the
registration mode of a trunk interface is set to fixed, the interface allows only the manually
configured VLANs to pass even if it is configured to allow all the VLANs to pass.
l Forbidden: In this mode, the GVRP interface is disabled from dynamically registering and
deregistering VLANs and can transmit only information about VLAN 1. If the registration
mode of a trunk interface is set to forbidden, the interface allows only VLAN 1 to pass even
if it is configured to allow all the VLANs to pass.
NOTE
The S7700 supports a maximum of 4094 dynamic VLANs.
The GVRP protocol can run only in the Common and Internal Spanning Tree (CIST) instance. The interface
blocked by MSTP in the CIST instance cannot send or receive GVRP packets.
Quidway S7700 Smart Routing Switch
Configuration Guide - Ethernet 6 GVRP Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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