qinq mapping

Function

The qinq mapping command configures QinQ mapping.

The undo qinq mapping command cancels QinQ mapping.

By default, QinQ mapping is not configured on sub-interfaces.

Format

qinq mapping vid vid map-vlan vid map-vid [ vlan-group group-id ]

qinq mapping

undo qinq mapping vid vid map-vlan vid map-vid [ vlan-group group-id ]

undo qinq mapping

Parameters

Parameter	Description	Value
vid vid	Specifies the VLAN ID carried in single-tagged packets that the interface receives.	The value is an integer ranging from 1 to 4094.
map-vlan vid map-vid	Specifies the VLAN ID to be mapped to the VLAN tag of single-tagged packets.	The value is an integer ranging from 1 to 4094.
vlan-group group-id	Specifies the number of a VLAN group. If vlan-group group-id is specified, the command adds mapped VLAN IDs to a specified VLAN group. You can apply different QoS profiles to the VLAN groups.	The value is an integer ranging from 1 to 16.

Parameter

Description

Value

vid vid

Specifies the VLAN ID carried in single-tagged packets that the interface receives.

The value is an integer ranging from 1 to 4094.

map-vlan vid map-vid

Specifies the VLAN ID to be mapped to the VLAN tag of single-tagged packets.

The value is an integer ranging from 1 to 4094.

vlan-group group-id

Specifies the number of a VLAN group.

If vlan-group group-id is specified, the command adds mapped VLAN IDs to a specified VLAN group. You can apply different QoS profiles to the VLAN groups.

The value is an integer ranging from 1 to 16.

Views

100ge sub-interface view, 10GE sub-interface view, 200GE sub-interface view, 25GE sub-interface view, 400GE sub-interface view, 40GE sub-interface view, 50GE sub-interface view, Eth-Trunk sub-interface view, GE sub-interface view, Global VE sub-interface view, VE sub-interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
ethernet	write

Usage Guidelines

Usage Scenario

QinQ mapping allows a device to map a user VLAN ID to a carrier VLAN ID, shielding different user VLAN IDs in packets. QinQ mapping is deployed on edge devices on Layer 2 networks to map user VLAN IDs in packets received from users. The devices map the VLAN IDs in user packets to specified VLAN IDs before forwarding the packets to the public network. QinQ mapping is applicable but not limited to the following scenarios:

VLAN IDs deployed in new sites and old sites conflict, but the new sites need to communicate with the old sites.
VLAN ID planning at each site on the public network is different. As a result, the VLAN IDs conflict. These sites, however, do not need to communicate with each other.
VLAN IDs on both ends of the public network are different.
Configuring the qinq mapping command on a sub-interface is similar to configuring the port vlan-mapping command on an interface. The configuration differences are as follows:
QinQ mapping is configured on sub-interfaces to provide L2VPN services.
VLAN mapping is configured on interfaces to enable users from different VLANs to communicate over a Layer 2 metropolitan area network (MAN).
Configuring QinQ mapping reduces the consumption of physical interfaces.

Precautions

If the qinq mapping vid map-vlan vid command has been run on an Ethernet sub-interface, the sub-interface cannot be configured with commands for QinQ stacking/QinQ termination/Dot1q termination functions.

Example

# Enable 1 to 1 QinQ mapping on a sub-interface and configure the sub-interface to map VLAN ID 100 carried in single-tagged packets to VLAN ID 10 and add VLAN 10 to VLAN group 1.

<HUAWEI> system-view
[~HUAWEI] vlan batch 10 100
[*HUAWEI] interface GigabitEthernet 0/1/1.1
[*HUAWEI-GigabitEthernet0/1/0.1] vlan-group 1
[*HUAWEI-GigabitEthernet0/1/0.1-vlangroup1] quit
[*HUAWEI-GigabitEthernet0/1/0.1] qinq mapping vid 100 map-vlan vid 10 vlan-group 1