Contents

VLAN mapping commands· 1

display vlan mapping· 1

vlan mapping· 2

vlan mapping untagged· 3

 

VLAN mapping commands

display vlan mapping

Use display vlan mapping to display VLAN mapping information.

Syntax

display vlan mapping [ interface interface-type interface-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface interface-type interface-number: Specifies an interface by its type and number. If you do not specify an interface, the command displays VLAN mapping information on all interfaces.

Examples

# Display VLAN mapping information on all interfaces.

<Sysname> display vlan mapping

 

Interface VE-Bridge1/0/1:

  Outer VLAN    Inner VLAN    Translated Outer VLAN    Translated Inner VLAN

  1             3             8                        9

  3-5           N/A           9                        3-5

 

Table 1 Command output

Field	Description
Outer VLAN	Original outer VLAN. This field indicates the original VLAN for one-to-two VLAN mapping. This field displays N/A for zero-to-two VLAN mapping.
Inner VLAN	Original inner VLAN. This field displays N/A for one-to-two VLAN mapping. This field displays N/A for zero-to-two VLAN mapping.
Translated Outer VLAN	Translated outer VLAN. This field indicates the SVLAN to be added for zero-to-two VLAN mapping.
Translated Inner VLAN	Translated inner VLAN. This field indicates the CVLAN to be added for zero-to-two VLAN mapping.

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Related commands

vlan mapping

vlan mapping

Use vlan mapping to configure VLAN mapping on an interface.

Use undo vlan mapping to cancel the VLAN mapping configuration.

Syntax

vlan mapping { nest { range vlan-range-list | single vlan-id-list } nested-vlan vlan-id | tunnel outer-vlan-id inner-vlan-id translated-vlan outer-vlan-id inner-vlan-id }

undo vlan mapping { all | nest { range vlan-range-list | single vlan-id-list } nested-vlan vlan-id | tunnel outer-vlan-id inner-vlan-id translated-vlan outer-vlan-id inner-vlan-id }

Default

No VLAN mapping is configured on an interface.

Views

VEB interface view

Predefined user roles

network-admin

Parameters

nest range vlan-range-list nested-vlan vlan-id: Specifies the CVLAN ranges and the SVLAN for a one-to-two VLAN mapping. The vlan-range-list argument specifies a space-separated list of up to 10 CVLAN items. Each item specifies a CVLAN ID or a range of CVLAN IDs in the format of vlan-id1 to vlan-id2. The value range for CVLAN IDs is 1 to 4094. The value for the vlan-id2 argument must be greater than the value for the vlan-id1 argument. Different CVLAN ranges cannot overlap. The vlan-id argument specifies the SVLAN ID in the range of 1 to 4094.

nest single vlan-id-list nested-vlan vlan-id: Specifies the CVLANs and the SVLAN for a one-to-two VLAN mapping. The vlan-id-list argument specifies a space-separated list of up to 10 CVLAN IDs, each of which is in the range of 1 to 4094. The vlan-id argument specifies the SVLAN ID in the range of 1 to 4094.

tunnel outer-vlan-id inner-vlan-id translated-vlan outer-vlan-id inner-vlan-id: Specifies the original outer VLAN ID, original inner VLAN ID, translated outer VLAN ID, and translated inner VLAN ID for a two-to-two VLAN mapping. The value ranges for the outer-vlan-id argument and the inner-vlan-id argument are both 1 to 4094.

all: Deletes all VLAN mapping configurations from the interface.

Usage guidelines

VLAN mapping takes effect only on VLAN-tagged packets received on an interface.

The original and translated VLANs in VLAN mappings on an interface must meet the following requirements:

·     Different types of VLAN mapping entries cannot include the same original VLANs or translated VLANs.

·     Different or two-to-two VLAN mapping entries cannot include the same translated VLANs. If you configure multiple two-to-two VLAN mapping entries for the same original VLANs, only the first configuration takes effect.

The configuration restrictions between QinQ and VLAN mappings are as follows:

·     Before you enable or disable QinQ on a port, you must remove all VLAN mappings on the port.

·     You cannot configure two-to-two VLAN mappings on a QinQ-enabled port.

If you use both transparent VLANs and VLAN mappings on an interface, the transparent VLANs cannot be the following VLANs:

·     Original or translated VLANs of one-to-two VLAN mappings.

·     Original or translated outer VLANs of two-to-two VLAN mappings.

 

The MTU of an interface is 1500 bytes by default. After a VLAN tag is added to a packet, the packet length is added by 4 bytes. As a best practice, set the MTU to a minimum of 1504 bytes for ports on the forwarding path of the packet on the service provider network.

Examples

# Configure one-to-two VLAN mappings on interface VE-Bridge 1/0/1 to add SVLAN tag 101 to packets carrying VLAN tags 1 through 10 and VLAN tag 80.

<Sysname> system-view

[Sysname] interface ve-bridge 1/0/1

[Sysname-VE-Bridge1/0/1] vlan mapping nest range 1 to 10 nested-vlan 101

[Sysname-VE-Bridge1/0/1] vlan mapping nest single 80 nested-vlan 101

# Configure a two-to-two VLAN mapping on VEB interface 1/0/1 to map SVLAN 101 and CVLAN 1 to SVLAN 201 and CVLAN 10.

<Sysname> system-view

[Sysname] interface ve-bridge 1/0/1

[Sysname-VE-Bridge1/0/1] vlan mapping tunnel 101 1 translated-vlan 201 10

Related commands

display vlan mapping

vlan mapping untagged

Use vlan mapping untagged to configure zero-to-two VLAN mapping on an interface.

Use undo vlan mapping untagged to remove the zero-to-two VLAN mapping configuration.

Syntax

vlan mapping untagged nested-outer-vlan outer-vlan-id nested-inner-vlan inner-vlan-id

undo vlan mapping untagged

Default

No zero-to-two VLAN mapping is configured on an interface.

Views

VEB interface view

Predefined user roles

network-admin

Parameters

nested-outer-vlan outer-vlan-id: Specifies the SVLAN ID in the range of 1 to 4094.

nested-inner-vlan inner-vlan-id: Specifies the CVLAN ID in the range of 1 to 4094.

Usage guidelines

This command takes effect only on ports that use VLAN 1 as the PVID.

Before you modify a zero-to-two VLAN mapping, first execute the undo vlan mapping untagged command to remove the previous configuration.

As a best practice, set the MTU to a minimum of 1504 bytes for ports on the forwarding path of the double-tagged packet in the service provider network.

Examples

# Configure a zero-to-two VLAN mapping on interface VE-Bridge 1/0/1 to add SVLAN 200 and CVLAN 100 to untagged packets.

<Sysname> system-view

[Sysname] interface ve-bridge 1/0/1

[Sysname-VE-Bridge1/0/1] vlan mapping untagged nested-outer-vlan 200 nested-inner-vlan 100

Related commands

display vlan mapping