03-Layer 2-LAN Switching Command Reference

HomeSupportResource CenterH3C S6520X-HI[EI][SI] & S6520-SI & S5560X-HI & S5000-EI & MS4600 Switch Series Command References-R63xx-6W10103-Layer 2-LAN Switching Command Reference
13-VLAN mapping commands
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13-VLAN mapping commands 54.97 KB

VLAN mapping commands

Do not configure VLAN mapping and Ethernet service instance-to-VSI binding on the same Layer 2 Ethernet interface or Layer 2 aggregate interface. Do not configure VLAN mapping on a Layer 2 Ethernet interface or Layer 2 aggregate interface that acts as the source interface of a VXLAN tunnel. Otherwise, these features might not take effect. For more information about VXLAN and VSI, see VXLAN Configuration Guide.

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 Ten-GigabitEthernet1/0/1:

  Outer VLAN    Inner VLAN    Translated Outer VLAN    Translated Inner VLAN

  10            N/A           120                      N/A

  Outer VLAN    Inner VLAN    Nested VLAN

  200           100           300

 

Interface Ten-GigabitEthernet1/0/3:

  Outer VLAN    Inner VLAN    Translated Outer VLAN    Translated Inner VLAN

  12            N/A           110                      12

 

Interface Ten-GigabitEthernet1/0/4:

  Outer VLAN    Inner VLAN    Translated Outer VLAN    Translated Inner VLAN

  11            30            130                      40

Table 1 Command output

Field

Description

Outer VLAN

Original outer VLAN.

This field indicates the original VLAN for one-to-one VLAN mapping and one-to-two VLAN mapping.

Inner VLAN

Original inner VLAN.

This field displays N/A for one-to-one VLAN mapping and one-to-two VLAN mapping.

Translated Outer VLAN

Translated outer VLAN.

This field indicates the translated VLAN for one-to-one VLAN mapping.

Translated Inner VLAN

Translated inner VLAN.

This field displays N/A for one-to-one VLAN mapping.

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 { vlan-id translated-vlan vlan-id | 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 { vlan-id translated-vlan vlan-id | 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

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

vlan-id translated-vlan vlan-id: Specifies the original VLAN and translated VLAN for a one-to-one VLAN mapping. The value range for the vlan-id argument is 1 to 4094. The original VLAN and the translated VLAN cannot be the same.

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 the same interface must meet the following requirements:

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

·     Different one-to-one or two-to-two VLAN mapping entries cannot include the same translated VLANs. If you configure multiple one-to-one or two-to-two VLAN mapping entries for the same original VLANs, the most recent 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-one and 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 a one-to-one VLAN mapping on Ten-GigabitEthernet 1/0/1 to map VLAN 1 to VLAN 101.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 1/0/1

[Sysname-Ten-GigabitEthernet1/0/1] vlan mapping 1 translated-vlan 101

# Configure one-to-two VLAN mappings on Ten-GigabitEthernet 1/0/4 to add SVLAN tag 101 to packets carrying VLAN tags 1 through 10 and VLAN tag 80.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 1/0/4

[Sysname-Ten-GigabitEthernet1/0/4] vlan mapping nest range 1 to 10 nested-vlan 101

[Sysname-Ten-GigabitEthernet1/0/4] vlan mapping nest single 80 nested-vlan 101

# Configure a two-to-two VLAN mapping on Ten-GigabitEthernet 1/0/5 to map SVLAN 101 and CVLAN 1 to SVLAN 201 and CVLAN 10.

<Sysname> system-view

[Sysname] interface ten-gigabitethernet 1/0/5

[Sysname-Ten-GigabitEthernet1/0/5] vlan mapping tunnel 101 1 translated-vlan 201 10

Related commands

display vlan mapping