Contents

VLAN termination commands· 1

display user-vlan· 1

dot1q ethernet-type· 2

second-dot1q· 3

user-vlan dot1q vid· 4

user-vlan dot1q vid second-dot1q· 5

vlan-termination broadcast enable· 6

vlan-termination broadcast ra· 7

vlan-termination user-mode· 8

vlan-type dot1q vid· 9

vlan-type dot1q vid second-dot1q· 10

 

VLAN termination commands

To use VLAN termination, first set the system operating mode to enhanced Layer 2. For more information about the system operating mode, see device management in Fundamentals Configuration Guide.

display user-vlan

Use display user-vlan to display user VLAN information.

Syntax

display user-vlan interface interface-type interface-number.subnumber [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface-type: Specifies an interface type.

interface-number.subnumber: Specifies a subinterface by its number. The interface-number argument specifies the main interface number, and the subnumber argument specifies a subinterface number.

slot slot-number: Specifies a card by its slot number.

Usage guidelines

This command displays user VLAN information on a subinterface only if the following conditions exist:

·     The user-vlan dot1q vid or user-vlan dot1q vid second-dot1q command has been configured on the subinterface.

·     Online users are present on the subinterface.

When you specify the slot slot-number option, following these restrictions and guidelines:

·     To display user VLAN information on a Layer 3 Ethernet subinterface, do not specify this option.

·     If member ports of an aggregation group belong to different slots, user this option to specify a slot. If you do not specify this option, the command displays user VLAN information on the slot that hosts the aggregation member port with the smallest port number. The Port Number field of the display link-aggregation member-port command output displays the port number of an aggregation member port.

Examples

# Display user VLAN information on Layer 3 Ethernet subinterface HundredGigE1/0/1.1.

<Sysname> display user-vlan interface hundredgige 1/0/1.1

 Service VLAN  Customer VLAN   Number of online users

 20              100               1

 20              101               10

Number of user VLANs: 2

Table 1 Command output

Field	Description
Service VLAN	Service provider network VLAN: ·     This field indicates the outermost layer VLAN (customer network VLAN) for user VLAN Dot1q termination. ·     This field indicates Layer 1 VLAN for user VLAN QinQ termination.
Customer VLAN	Customer network VLAN: ·     This field displays N/A for user VLAN Dot1q termination. ·     This field indicates Layer 2 VLAN for user VLAN QinQ termination.
Number of online users	Number of online users in the VLAN.
Number of user VLANs	Number of VLANs that have online users.

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Related commands

user-vlan dot1q vid

user-vlan dot1q vid second-dot1q

dot1q ethernet-type

Use dot1q ethernet-type to set the TPID value in the outermost VLAN tag of packets received and sent by an interface.

Use undo dot1q ethernet-type to restore the default.

Syntax

dot1q ethernet-type hex-value

undo dot1q ethernet-type

Default

The TPID value for the outermost VLAN tag of a VLAN-tagged packet received and sent by the interface is 0x8100.

Views

Layer 3 aggregate/Ethernet interface view

Predefined user roles

network-admin

Parameters

hex-value: Sets a hexadecimal TPID value in the range of 1 to ffff, excluding the common protocol type values listed in Table 2.

Table 2 Common protocol type values

Protocol	Value
ARP	0x0806
PUP	0x0200
RARP	0x8035
IP	0x0800
IPv6	0x86DD
PPPoE	0x8863/0x8864
MPLS	0x8847/0x8848
IPX/SPX	0x8137
IS-IS	0x8000
LACP	0x8809
LLDP	0x88CC
802.1X	0x888E
802.1ag	0x8902
Cluster	0x88A7
Reserved on the device	0xFFFD/0xFFFE/0xFFFF

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Usage guidelines

After you execute this command, only packets whose TPID in the outermost VLAN tag is 0x8100 or the configured value are processed as VLAN-tagged packets.

When sending a packet, the interface sets the TPID value in the outermost VLAN tag to the configured value. If the packet includes two or more layers of VLAN tags, the interface sets the TPID values in the other VLAN tags to 0x8100.

Do not use this command in subinterface view. Configurations made on a main interface (Layer 3 interface for example) take effect on all subinterfaces of the interface.

For more information about Layer 3 VE interfaces, see ATM configuration in Layer 2—WAN Access Configuration Guide. For more information about L3VE interfaces, see L2VPN access to L3VPN or IP backbone configuration in MPLS Configuration Guide.

Examples

# Set the TPID value to 0x9100 in the outermost VLAN tag of VLAN-tagged packets received and sent by the subinterfaces of HundredGigE 1/0/1.

<Sysname> system-view

[Sysname] interface hundredgige 1/0/1

[Sysname-HundredGigE1/0/1] dot1q ethernet-type 9100

second-dot1q

Use second-dot1q to enable QinQ termination on an interface, and specify the Layer 2 VLAN IDs of the VLAN-tagged packets that can be terminated by the interface.

Use undo second-dot1q to disable QinQ termination on an interface.

Syntax

second-dot1q { vlan-id-list | any }

undo second-dot1q { vlan-id-list | any }

Default

QinQ termination is disabled on an interface.

Views

VLAN interface view

Predefined user roles

network-admin

Parameters

vlan-id-list: Specifies a space-separated list of up to 10 Layer 2 VLAN ID items. Each item specifies a Layer 2 VLAN ID or a range of Layer 2 VLAN IDs in the form of vlan-id1 to vlan-id2. The value range for VLAN IDs is 1 to 4094. The value for the vlan-id2 argument must be equal to or greater than the value for the vlan-id1 argument.

any: Specifies all values between 1 and 4094.

Usage guidelines

When you execute this command, the Layer 1 VLAN ID of VLAN-tagged packets that can be terminated by the interface is the interface number. This Layer 1 VLAN ID is not configurable.

Examples

# Configure VLAN-interface 10 to terminate VLAN-tagged packets with Layer 2 VLAN IDs in the range of 10 to 20.

<Sysname> system-view

[Sysname] interface vlan-interface 10

[Sysname-Vlan-interface10] second-dot1q 10 to 20

[Sysname-Vlan-interface10] quit

# Configure VLAN-interface 12 to terminate VLAN-tagged packets with Layer 2 VLAN ID 100.

[Sysname] interface vlan-interface 12

[Sysname-Vlan-interface12] second-dot1q 100

[Sysname-Vlan-interface12] quit

# Configure VLAN-interface 100 to terminate VLAN-tagged packets with any Layer 2 VLAN IDs.

[Sysname] interface vlan-interface 100

[Sysname-Vlan-interface100] second-dot1q any

The following table describes the configuration results:

 

VLAN interface	Layer 1 VLAN ID of VLAN-tagged packets that the VLAN interface can terminate	Layer 2 VLAN IDs of VLAN-tagged packets that the VLAN interface can terminate
VLAN-interface 10	10	10–20
VLAN-interface 12	12	100
VLAN-interface 100	100	1–4094

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user-vlan dot1q vid

Use user-vlan dot1q vid to enable user VLAN Dot1q termination on a subinterface, and specify the outermost VLAN IDs in the VLAN-tagged packets that can be terminated by the subinterface.

Use undo user-vlan dot1q vid to disable user VLAN Dot1q termination on a subinterface.

Syntax

user-vlan dot1q vid vlan-id-list

undo user-vlan dot1q vid vlan-id-list

Default

User VLAN Dot1q termination is disabled on a subinterface.

Views

Layer 3 Ethernet subinterface view

Layer 3 aggregate subinterface view

Predefined user roles

network-admin

Parameters

vlan-id-list: Specifies a space-separated list of up to 10 outermost VLAN ID items. Each item specifies an outermost VLAN ID or a range of outermost VLAN IDs in the form of vlan-id1 to vlan-id2. The value range for VLAN IDs is 1 to 4094. The value for the vlan-id2 argument must be equal to or greater than the value for the vlan-id1 argument.

Usage guidelines

The outermost VLAN ID ranges specified by the vlan-id-list argument for different subinterfaces of a main interface cannot overlap.

This command and the vlan-type dot1q vid command are mutually exclusive on the same subinterface.

Examples

# Enable user VLAN Dot1q termination on HundredGigE 1/0/1.1, and configure the interface to terminate VLAN-tagged packets with outermost VLAN IDs in the range of 2 to 100.

<Sysname> system-view

[Sysname] interface hundredgige 1/0/1.1

[Sysname-HundredGigE1/0/1.1] user-vlan dot1q vid 2 to 100

Related commands

display user-vlan

user-vlan dot1q vid second-dot1q

Use user-vlan dot1q vid second-dot1q to enable user VLAN QinQ termination on a subinterface, and specify the outermost two layers of VLAN IDs in VLAN-tagged packets that are terminated by the subinterface.

Use undo user-vlan dot1q vid second-dot1q to disable user VLAN QinQ termination on a subinterface.

Syntax

user-vlan dot1q vid vlan-id-list second-dot1q { vlan-id-list | any }

undo user-vlan dot1q vid vlan-id-list second-dot1q { vlan-id-list | any }

Default

User VLAN QinQ termination is disabled on a subinterface.

Views

Layer 3 Ethernet subinterface view

Layer 3 aggregate subinterface view

Predefined user roles

network-admin

Parameters

vlan-id-list: Specifies a space-separated list of up to 10 VLAN ID items. Each item specifies a VLAN ID or a range of VLAN IDs in the form of vlan-id1 to vlan-id2. The value range for VLAN IDs is 1 to 4094. The value for the vlan-id2 argument must be equal to or greater than the value for the vlan-id1 argument.

any: Specifies all values between 1 and 4094.

Usage guidelines

Two subinterfaces of the same Ethernet interface cannot terminate packets that include the same two layers of VLAN IDs. If you configure the subinterfaces to terminate the same Layer 1 VLAN ID, make sure their Layer 2 VLAN ID ranges do not overlap. If you specify both any and vlan-id-list as the respective Layer 2 VLAN ID ranges of the subinterfaces, the any keyword does not include the VLAN IDs specified by vlan-id-list.

This command and the vlan-type dot1q vid second-dot1q command are mutually exclusive on the same subinterface.

Examples

# Enable user VLAN QinQ termination on HundredGigE1/0/1.1. Configure the interface to terminate VLAN-tagged packets with Layer 1 VLAN IDs in the range of 1 to 100 and Layer 2 VLAN IDs in the range of 500 to 600.

[Sysname] interface hundredgige 1/0/1.1

[Sysname-HundredGigE1/0/1.1] user-vlan dot1q vid 1 to 100 second-dot1q 500 to 600

Related commands

display user-vlan

vlan-termination broadcast enable

Use vlan-termination broadcast enable to enable an interface to transmit broadcasts and multicasts.

Use undo vlan-termination broadcast enable to disable an interface from transmitting broadcasts and multicasts.

Syntax

vlan-termination broadcast enable

undo vlan-termination broadcast enable

Default

Broadcast and multicast packets are dropped on an interface configured with Dot1q/QinQ termination to terminate packets of multiple VLANs.

Views

Layer 3 aggregate/Ethernet subinterface view

VLAN interface view

Predefined user roles

network-admin

Usage guidelines

	IMPORTANT: This command affects system performance. If system performance is seriously affected by this command, execute the undo form of this command to remove the command configuration.

 

To transmit a broadcast or multicast packet, the interface starts a traversal over all the VLAN IDs specified for Dot1q/QinQ termination. It copies the packet and tags each copy with VLAN IDs, until all combinations of VLAN IDs are traversed.

Examples

·     Configure HundredGigE 1/0/1.10 to tag a multicast or broadcast packet with each VLAN tag in the range of 10 to 20.

# Enable Dot1q termination on HundredGigE 1/0/1.10 to terminate VLAN-tagged packets with outermost VLAN IDs in the range of 10 to 20.

<Sysname> system-view

[Sysname] interface hundredgige 1/0/1.10

[Sysname-HundredGigE1/0/1.10] vlan-type dot1q vid 10 to 20

# Enable HundredGigE 1/0/1.10 to transmit broadcast and multicast packets.

[Sysname-HundredGigE1/0/1.10] vlan-termination broadcast enable

·     Configure HundredGigE 1/0/1.10 to tag a multicast or broadcast packet with each Layer 1 VLAN ID and each Layer 2 VLAN ID. The Layer 1 and Layer 2 VLAN IDs are in the range of 300 to 400 and 500 to 600, respectively.

# Configure HundredGigE 1/0/1.10 to terminate VLAN-tagged packets whose Layer 1 and Layer 2 VLAN IDs are in the range of 300 to 400 and 500 to 600, respectively.

<Sysname> system-view

[Sysname] interface hundredgige 1/0/1.10

[Sysname-HundredGigE1/0/1.10] vlan-type dot1q vid 300 to 400 second-dot1q 500 to 600

# Enable HundredGigE 1/0/1.10 to transmit broadcast and multicast packets.

[Sysname-HundredGigE1/0/1.10] vlan-termination broadcast enable

vlan-termination broadcast ra

Use vlan-termination broadcast ra to enable an interface to transmit router advertisement (RA) multicast packets.

Use undo vlan-termination broadcast ra to disable an interface from transmitting RA multicast packets.

Syntax

vlan-termination broadcast ra

undo vlan-termination broadcast ra

Default

Broadcast and multicast packets are dropped on an interface configured with Dot1q/QinQ termination to terminate packets of multiple VLANs.

Views

Layer 3 aggregate/Ethernet subinterface view

VLAN interface view

Predefined user roles

network-admin

Usage guidelines

To transmit an RA multicast packet, the interface starts a traversal over all the VLAN IDs specified for Dot1q/QinQ termination. It copies the packet and tags each copy with VLAN IDs, until all combinations of VLAN IDs are traversed.

You must use this command to enable an ambiguous Dot1q or QinQ termination-enabled interface to transmit RA multicast packets on an IPv6 network. This command prohibits transmission of broadcast packets and other types of multicast packets, and consumes less CPU resources than the vlan-termination broadcast enable command.

Examples

·     Configure HundredGigE 1/0/1.10 to tag RA multicast packets with each VLAN tag in the range of 10 to 20.

# Enable Dot1q termination on HundredGigE 1/0/1.10 to terminate VLAN-tagged packets with outermost VLAN IDs in the range of 10 to 20.

<Sysname> system-view

[Sysname] interface hundredgige 1/0/1.10

[Sysname-HundredGigE1/0/1.10] vlan-type dot1q vid 10 to 20

# Enable HundredGigE 1/0/1.10 to transmit RA multicast packets.

[Sysname-HundredGigE1/0/1.10] vlan-termination broadcast ra

·     Configure HundredGigE 1/0/1.10 to tag RA multicast packets with each Layer 1 VLAN ID and each Layer 2 VLAN ID. The Layer 1 and Layer 2 VLAN IDs are in the range of 300 to 400 and 500 to 600, respectively.

# Configure HundredGigE 1/0/1.10 to terminate VLAN-tagged packets whose Layer 1 and Layer 2 VLAN IDs are in the range of 300 to 400 and 500 to 600, respectively.

<Sysname> system-view

[Sysname] interface hundredgige 1/0/1.10

[Sysname-HundredGigE1/0/1.10] vlan-type dot1q vid 300 to 400 second-dot1q 500 to 600

# Enable HundredGigE 1/0/1.10 to transmit RA multicast packets.

[Sysname-HundredGigE1/0/1.10] vlan-termination broadcast ra

vlan-termination user-mode

Use vlan-termination user-mode to enable user mode of VLAN termination.

Use undo vlan-termination user-mode to disable user mode of VLAN termination.

Syntax

vlan-termination user-mode

undo vlan-termination user-mode

Default

User mode of VLAN termination is disabled.

Views

Layer 3 aggregate/Ethernet subinterface view

Predefined user roles

network-admin

Usage guidelines

After you modify VLAN termination on a subinterface, the subinterface automatically restarts. In some networks, the subinterface restart logs off online users. To prevent the subinterface restart and protect the online user state, enable user mode of VLAN termination before you modify VLAN termination on the subinterface.

After you enable user mode of VLAN termination and modify VLAN termination on a subinterface, clear entries of VLANs that are no longer terminated by the subinterface. If you do not clear these entries, running services might be affected. For example, after you modify VLAN termination on a subinterface, perform the following tasks for the subinterface:

·     Use the reset arp interface command in user view to clear all ARP entries.

·     Use the reset ipv6 neighbors interface command in user view to clear all dynamic neighbors.

For more information about the reset arp and reset ipv6 neighbors commands, see ARP and IPv6 basics commands in Layer 3—IP Services Command Reference.

Examples

# Enable user mode of VLAN termination on HundredGigE 1/0/1.1.

<Sysname> system-view

[Sysname] interface hundredgige 1/0/1.1

[Sysname-HundredGigE1/0/1.1] vlan-termination user-mode

vlan-type dot1q vid

Use vlan-type dot1q vid to enable Dot1q termination on a subinterface, and specify the outermost VLAN IDs in the VLAN-tagged packets that can be terminated by the subinterface.

Use undo vlan-type dot1q vid to disable Dot1q termination on a subinterface.

Syntax

vlan-type dot1q vid vlan-id-list

undo vlan-type dot1q vid vlan-id-list

Default

Dot1q termination is disabled on a subinterface.

Views

Layer 3 aggregate/Ethernet subinterface view

Predefined user roles

network-admin

Parameters

vlan-id-list: Specifies a space-separated list of up to 10 outermost VLAN ID items. Each item specifies an outermost VLAN ID or a range of outermost VLAN IDs in the form of vlan-id1 to vlan-id2. The value range for VLAN IDs is 1 to 4094. The value for the vlan-id2 argument must be equal to or greater than the value for the vlan-id1 argument.

Usage guidelines

The outermost VLAN ID ranges specified by the vlan-id-list argument for different subinterfaces of a main interface cannot overlap.

This command and the user-vlan dot1q vid command are mutually exclusive on the same subinterface.

Examples

# Configure HundredGigE 1/0/1.1 to terminate VLAN-tagged packets with outermost VLAN IDs in the range of 2 to 100.

<Sysname> system-view

[Sysname] interface hundredgige 1/0/1.1

[Sysname-HundredGigE1/0/1.1] vlan-type dot1q vid 2 to 100

vlan-type dot1q vid second-dot1q

Use vlan-type dot1q vid second-dot1q to enable QinQ termination on a subinterface, and specify the outermost two layers of VLAN IDs of VLAN-tagged packets that can be terminated by the subinterface.

Use undo vlan-type dot1q vid second-dot1q to disable QinQ termination on a subinterface.

Syntax

vlan-type dot1q vid vlan-id-list second-dot1q { vlan-id-list | any }

undo vlan-type dot1q vid vlan-id-list second-dot1q { vlan-id-list | any }

Default

QinQ termination is disabled on a subinterface.

Views

Layer 3 aggregate/Ethernet/VE subinterface view

Predefined user roles

network-admin

Parameters

vlan-id-list: Specifies a space-separated list of up to 10 VLAN ID items. Each item specifies a VLAN ID or a range of VLAN IDs in the form of vlan-id1 to vlan-id2. The value range for VLAN IDs is 1 to 4094. The value for the vlan-id2 argument must be equal to or greater than the value for the vlan-id1 argument.

any: Specifies all values between 1 and 4094.

Usage guidelines

Two subinterfaces of the same main interface cannot terminate packets that include the same two layers of VLAN IDs. If you configure the subinterfaces to terminate the same Layer 1 VLAN ID, make sure their Layer 2 VLAN ID ranges do not overlap. If you specify both any and vlan-id-list as the respective Layer 2 VLAN ID ranges of the subinterfaces, the any keyword does not include the VLAN IDs specified by vlan-id-list.

This command and the user-vlan dot1q vid second-dot1q command are mutually exclusive on the same subinterface.

Examples

# Enable QinQ termination on the Layer 3 Ethernet subinterfaces, and configure each subinterface to terminate VLAN-tagged packets with the specified Layer 1 and Layer 2 VLAN IDs.

·     Configure HundredGigE 1/0/1.1 to terminate VLAN-tagged packets whose Layer 1 and Layer 2 VLAN IDs are both 100.

<Sysname> system-view

[Sysname] interface hundredgige 1/0/1.1

[Sysname-HundredGigE1/0/1.1] vlan-type dot1q vid 100 second-dot1q 100

[Sysname-HundredGigE1/0/1.1] quit

·     Configure HundredGigE 1/0/1.2 to terminate VLAN-tagged packets with Layer 1 VLAN ID 100 and Layer 2 VLAN IDs in the range of 200 to 300.

[Sysname] interface hundredgige 1/0/1.2

[Sysname-HundredGigE1/0/1.2] vlan-type dot1q vid 100 second-dot1q 200 to 300

[Sysname-HundredGigE1/0/1.2] quit

·     Configure HundredGigE 1/0/1.3 to terminate VLAN-tagged packets whose Layer 1 VLAN ID is 100 and Layer 2 VLAN ID is any value between 1 and 4094.

[Sysname] interface hundredgige 1/0/1.3

[Sysname-HundredGigE1/0/1.3] vlan-type dot1q vid 100 second-dot1q any

[Sysname-HundredGigE1/0/1.3] quit

·     Configure HundredGigE 1/0/1.4 to terminate VLAN-tagged packets whose Layer 1 VLAN ID is 100 and Layer 2 VLAN ID is in the range of 500 to 600.

[Sysname] interface hundredgige 1/0/1.4

[Sysname-HundredGigE1/0/1.4] vlan-type dot1q vid 100 second-dot1q 500 to 600

[Sysname-HundredGigE1/0/1.4] quit

·     Configure HundredGigE 1/0/1.5 to terminate VLAN-tagged packets whose Layer 1 VLAN ID is 200 and Layer 2 VLAN ID is in the range of 500 to 600.

[Sysname] interface hundredgige 1/0/1.5

[Sysname-HundredGigE1/0/1.5] vlan-type dot1q vid 200 second-dot1q 500 to 600

[Sysname-HundredGigE1/0/1.5] quit

·     Configure HundredGigE 1/0/1.6 to terminate VLAN-tagged packets whose Layer 1 VLAN ID is in the range of 300 to 400 and Layer 2 VLAN ID is 100.

[Sysname] interface hundredgige 1/0/1.6

[Sysname-HundredGigE1/0/1.6] vlan-type dot1q vid 300 to 400 second-dot1q 100

[Sysname-HundredGigE1/0/1.6] quit

·     Configure HundredGigE 1/0/1.7 to terminate VLAN-tagged packets whose Layer 1 and Layer 2 IDs are in the range of 300 to 400 and 500 to 600, respectively.

[Sysname] interface hundredgige 1/0/1.7

[Sysname-HundredGigE1/0/1.7] vlan-type dot1q vid 300 to 400 second-dot1q 500 to 600

[Sysname-HundredGigE1/0/1.7] quit

·     Configure HundredGigE 1/0/1.8 to terminate VLAN-tagged packets with a Layer 1 VLAN ID in the range of 300 to 400 and any Layer 2 VLAN ID.

[Sysname] interface hundredgige 1/0/1.8

[Sysname-HundredGigE1/0/1.8] vlan-type dot1q vid 300 to 400 second-dot1q any

The following table describes the configuration results:

 

Layer 3 Ethernet subinterface	Layer 1 VLAN IDs of VLAN-tagged packets that the subinterface can terminate	Layer 2 VLAN IDs of VLAN-tagged packets that the subinterface can terminate
HundredGigE 1/0/1.1	100	100
HundredGigE 1/0/1.2	100	200–300
HundredGigE 1/0/1.3	100	1–99, 101–199, 301–499, and 601–4094
HundredGigE 1/0/1.4	100	500–600
HundredGigE 1/0/1.5	200	500–600
HundredGigE 1/0/1.6	300–400	100
HundredGigE 1/0/1.7	300–400	500–600
HundredGigE 1/0/1.8	300–400	1–99, 101–499, and 601–4094

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