05-Layer 2—LAN Switching Command Reference

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04-VLAN commands
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04-VLAN commands 167.54 KB

VLAN commands

Basic VLAN commands

default

Use default to restore the default settings for a VLAN interface.

Syntax

default

Views

VLAN interface view

Predefined user roles

network-admin

Usage guidelines

CAUTION

CAUTION:

The default command might interrupt ongoing network services. Make sure you are fully aware of the impact of this command when you use it on a live network.

This command might fail to restore the default settings for some commands for reasons such as command dependencies or system restrictions. Use the display this command in interface view to identify these commands, and then use their undo forms or follow the command reference to restore their default settings. If your restoration attempt still fails, follow the error message instructions to resolve the problem.

Examples

# Restore the default settings for VLAN-interface 1.

<Sysname> system-view

[Sysname] interface vlan-interface 1

[Sysname-Vlan-interface1] default

description

Use description to configure the description of a VLAN.

Use undo description to restore the default.

Syntax

description text

undo description

Default

The description is VLAN vlan-id. The vlan-id argument specifies the VLAN ID in a four-digit format. If the VLAN ID has fewer than four digits, leading zeros are added. For example, the default description of VLAN 100 is VLAN 0100.

Views

VLAN view

Predefined user roles

network-admin

Parameters

text: Specifies a description, a case-sensitive string of 1 to 255 characters.

Usage guidelines

To manage VLANs efficiently, configure descriptions for them based on their functions or connections.

Examples

# Configure the description of VLAN 2 as sales-private.

<Sysname> system-view

[Sysname] vlan 2

[Sysname-vlan2] description sales-private

Related commands

display vlan

display interface vlan-interface

Use display interface vlan-interface to display VLAN interface information.

Syntax

display interface [ vlan-interface [ interface-number ] ] [ brief [ description | down ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

vlan-interface interface-number: Specifies a VLAN interface number. If you do not specify the vlan-interface keyword, the command displays information about all interfaces supported by the device. If you specify the vlan-interface keyword without specifying an interface number, the command displays information about all existing VLAN interfaces.

brief: Displays brief interface information. If you do not specify this keyword, the command displays detailed interface information.

description: Displays complete interface descriptions. If you do not specify this keyword, the command displays only the first 27 characters of each interface description.

down: Displays VLAN interfaces in down state and their down causes. If you do not specify this keyword, the command displays information about VLAN interfaces in all states.

Examples

# Display information about VLAN-interface 2.

<Sysname> display interface vlan-interface 2

Vlan-interface2

Current state: DOWN

Line protocol state: DOWN

Description: Vlan-interface2 Interface

Bandwidth: 100000 kbps

Maximum transmission unit: 1500

Internet protocol processing : Disabled

IP packet frame type: Ethernet II, hardware address: 000f-e249-8050

IPv6 packet frame type: Ethernet II, hardware address: 000f-e249-8050

Output queue - Urgent queuing: Size/Length/Discards 0/100/0

Output queue - Protocol queuing: Size/Length/Discards 0/500/0

Output queue - FIFO queuing: Size/Length/Discards 0/75/0

Last clearing of counters: Never

Last 300 seconds input rate: 0 bytes/sec, 0 bits/sec, 0 packets/sec

Last 300 seconds output rate: 0 bytes/sec, 0 bits/sec, 0 packets/sec

Input: 0 packets, 0 bytes, 0 drops

Output: 0 packets, 0 bytes, 0 drops

# Display brief information about VLAN-interface 2.

<Sysname> display interface vlan-interface 2 brief

Brief information on interfaces in route mode:

Link: ADM - administratively down; Stby - standby

Protocol: (s) - spoofing

Interface            Link Protocol Primary IP         Description

Vlan2                DOWN DOWN     --

Table 1 Command output

Field

Description

Vlan-interface2

VLAN interface name.

Current state

Physical link state of the VLAN interface:

·     Administratively DOWN—The interface has been shut down by using the shutdown command.

·     DOWN—The interface is administratively up, but its physical state is down. The VLAN of this VLAN interface does not contain any physical ports in up state. The ports might not be connected correctly or the links might have failed.

·     UP—The interface is both administratively and physically up.

Line protocol state

Data link layer state of the VLAN interface:

·     DOWN—The link layer protocol state of the interface is down.

·     UP—The link layer protocol state of the interface is up.

Description

Description of the VLAN interface.

Bandwidth

Expected bandwidth of the VLAN interface.

Maximum transmission unit

MTU of the VLAN interface.

Internet protocol processing

IP packet processing capability of the interface when the interface is not assigned an IP address:

·     Disabled—The interface cannot process IP packets.

·     Enabled—The interface can process IP packets.

Internet address: ip-address/mask-length (Type)

IP address of the interface and type of the address in parentheses.

Possible IP address types include:

·     Primary—Manually configured primary IP address.

·     Sub—Manually configured secondary IP address. If the interface has both primary and secondary IP addresses, the primary IP address is displayed. If the interface has only secondary IP addresses, the lowest secondary IP address is displayed.

·     DHCP-allocated—DHCP allocated IP address. For more information, see DHCP client configuration in Layer 3IP Services Configuration Guide.

·     BOOTP-allocatedBOOTP allocated IP address. For more information, see BOOTP client configuration in Layer 3IP Services Configuration Guide.

·     PPP-negotiated—IP address assigned by a PPP server during PPP negotiation. For more information, see PPP configuration in Layer 2WAN Access Configuration Guide.

·     Unnumbered—IP address borrowed from another interface.

·     MTunnel—IP address of the multicast tunnel interface (MTI), which is the same as the IP address of the MVPN source interface. For more information, see multicast VPN configuration in Multicast Configuration Guide.

IP packet frame type

IPv4 packet framing format.

hardware address

MAC address of the VLAN interface.

IPv6 packet frame type

IPv6 packet framing format.

Output queue - Urgent queuing: Size/Length/Discards 0/100/0

Output queue - Protocol queuing: Size/Length/Discards 0/500/0

Output queue - FIFO queuing: Size/Length/Discards 0/75/0

Information about the urgent, protocol, and FIFO output queues:

·     Size—Number of packets in the queue.

·     Length—Maximum number of packets that the queue can contain.

·     Discards—Number of dropped packets.

Last clearing of counters

The most recent time that the reset counters interface vlan-interface command was executed. This field displays Never if you have never executed this command.

Last 300 seconds input rate: 0 bytes/sec, 0 bits/sec, 0 packets/sec

Last 300 seconds output rate: 0 bytes/sec, 0 bits/sec, 0 packets/sec

Average rates of input packets and output packets in the last 300 seconds (in Bps, bps, and pps).

Input: 0 packets, 0 bytes, 0 drops

Total number and size (in bytes) of the received packets of the interface and the number of the dropped packets.

Output: 0 packets, 0 bytes, 0 drops

Total number and size (in bytes) of the sent packets of the interface and the number of the dropped packets.

Brief information on interfaces in route mode

Brief information about Layer 3 interfaces.

Interface

Abbreviated interface name.

Link

Physical link state of the interface:

·     UP—The interface is physically up.

·     DOWN—The interface is physically down.

·     ADM—The interface has been shut down by using the shutdown command. To restore the physical state of the interface, use the undo shutdown command.

·     Stby—The interface is a backup interface in standby state. To see the primary interface, use the display interface-backup state command.

Protocol

Data link layer protocol state of the interface:

·     UP—The data link layer protocol state of the interface is up.

·     DOWN—The data link layer protocol state of the interface is down.

·     UP(s)—The data link layer protocol of the interface is up, but the link is an on-demand link or does not exist. The (s) attribute represents the spoofing flag.

Primary IP

Primary IP address of the interface.

Related commands

reset counters interface vlan-interface

display vlan

Use display vlan to display VLAN information.

Syntax

display vlan [ vlan-id1 [ to vlan-id2 ] | all | dynamic | reserved | static ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

vlan-id1: Specifies a VLAN by its ID in the range of 1 to 4094.

vlan-id1 to vlan-id2: Specifies a VLAN ID range. Both the vlan-id1 and the vlan-id2 arguments are in the range of 1 to 4094. The value for the vlan-id2 argument must be equal to or greater than the value for the vlan-id1 argument.

all: Specifies all VLANs except the reserved VLANs.

dynamic: Specifies dynamic VLANs. If you specify this keyword, the command displays the total number of dynamic VLANs and each dynamic VLAN ID. Dynamic VLANs are generated through MVRP or assigned by a RADIUS server.

reserved: Specifies reserved VLANs. Protocol modules determine which VLANs are reserved according to function implementation. The reserved VLANs provide services for protocol modules. You cannot configure reserved VLANs.

static: Specifies static VLANs. If you specify this keyword, the command displays the total number of static VLANs and each static VLAN ID. Static VLANs are manually created.

Examples

# Display information about VLAN 2.

<Sysname> display vlan 2

 VLAN ID: 2

 VLAN type: Static

 Route interface: Not configured

 Description: VLAN 0002

 Name: VLAN 0002

 Tagged ports:   None

 Untagged ports:

    GigabitEthernet0/0/1  GigabitEthernet0/0/2  GigabitEthernet0/0/3

# Display information about VLAN 3.

<Sysname> display vlan 3

 VLAN ID: 3

 VLAN type: static

 Route interface: Configured

 IPv4 address: 1.1.1.1

 IPv4 subnet mask: 255.255.255.0

 Description: VLAN 0003

 Name: VLAN 0003

 Tagged ports:   None

 Untagged ports: None

Table 2 Command output

Field

Description

VLAN type

VLAN type, static or dynamic.

Route interface

Whether the VLAN interface is configured for the VLAN.

·     Not configured.

·     Configured.

Description

Description of the VLAN.

Name

VLAN name.

IP address

Primary IPv4 address of the VLAN interface. This field is displayed only when an IPv4 address is configured for the VLAN interface.

When the VLAN interface is also configured with secondary IPv4 addresses, you can view them by using one of the following commands:

·     display interface vlan-interface.

·     display this (VLAN interface view).

Subnet mask

Subnet mask of the primary IP address. This field is available only when an IP address is configured for the VLAN interface.

Tagged ports

Tagged members of the VLAN.

Untagged ports

Untagged members of the VLAN.

Related commands

vlan

display vlan brief

Use display vlan brief to display brief VLAN information.

Syntax

display vlan brief

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display brief VLAN information.

<Sysname> display vlan brief

Brief information about all VLANs:

Supported Minimum VLAN ID: 1

Supported Maximum VLAN ID: 4094

Default VLAN ID: 1

VLAN ID   Name                             Port

1         VLAN 0001                        GE0/0/1  GE0/0/2  GE0/0/3  GE0/0/4

                                           GE0/0/5  GE0/0/6  GE0/0/7  GE0/0/8

2         VLAN 0002

3         VLAN 0003

Table 3 Command output

Field

Description

Default VLAN ID

System default VLAN ID.

Name

VLAN name.

Port

Ports that allow packets from the VLAN to pass through.

interface vlan-interface

Use interface vlan-interface to create a VLAN interface and enter its view, or enter the view of an existing VLAN interface.

Use undo interface vlan-interface to delete a VLAN interface.

Syntax

interface vlan-interface interface-number

undo interface vlan-interface interface-number

Default

No VLAN interfaces exist.

Views

System view

Predefined user roles

network-admin

Parameters

interface-number: Specifies a VLAN interface number in the range of 1 to 4094.

Usage guidelines

Create the VLAN before you create the VLAN interface for a VLAN.

You cannot create VLAN interfaces for sub-VLANs.

You cannot create VLAN interfaces for secondary VLANs that meet the following requirements:

·     Associated with the same primary VLAN.

·     Enabled with Layer 3 communication in VLAN interface view of the primary VLAN interface.

Examples

# Create VLAN-interface 2, and enter its view.

<Sysname> system-view

[Sysname] vlan 2

[Sysname-vlan2] quit

[Sysname] interface vlan-interface 2

[Sysname-Vlan-interface2]

Related commands

display interface vlan-interface

mac-address

Use mac-address to assign a MAC address to a VLAN interface.

Use undo mac-address to restore the default.

Syntax

mac-address mac-address

undo mac-address

Default

No MAC address is configured for a VLAN interface.

Views

VLAN interface view

Predefined user roles

network-admin

Parameters

mac-address: Specifies a MAC address in the format of H-H-H.

Usage guidelines

When you assign a MAC address to a VLAN interface, make sure the following requirements are met:

·     The MAC address must have the same highest 36 bits as the base MAC address.

·     The MAC address must be no lower than the base MAC address plus 90 (decimal).

For more information about the base MAC address, see MAC address table in Layer 2—LAN Switching Configuration Guide.

Examples

# Assign MAC address 0001-0001-0001 to VLAN-interface 2.

<Sysname> system-view

[Sysname] interface vlan-interface 2

[Sysname-Vlan-interface2] mac-address 1-1-1

mtu

Use mtu to set the MTU for a VLAN interface.

Use undo mtu to restore the default.

Syntax

mtu size

undo mtu

Default

The MTU of a VLAN interface is 1500 bytes.

Views

VLAN interface view

Predefined user roles

network-admin

Parameters

size: Sets the MTU in the range of 46 to 1500 bytes.

Usage guidelines

If you configure both the mtu and ip mtu commands on a VLAN interface, the MTU set by the ip mtu command is used for fragmentation. For more information about the ip mtu command, see Layer 3—IP Services Command Reference.

Examples

# Set the MTU to 1492 bytes for VLAN-interface 1.

<Sysname> system-view

[Sysname] interface vlan-interface 1

[Sysname-Vlan-interface1] mtu 1492

Related commands

display interface vlan-interface

name

Use name to assign a name to a VLAN.

Use undo name to restore the default.

Syntax

name text

undo name

Default

The name of a VLAN is VLAN vlan-id. The vlan-id argument specifies the VLAN ID in a four-digit format. If the VLAN ID has fewer than four digits, leading zeros are added. For example, the name of VLAN 100 is VLAN 0100.

Views

VLAN view

Predefined user roles

network-admin

Parameters

text: Specifies a VLAN name, a case-sensitive string of 1 to 32 characters.

Usage guidelines

If a large number of VLANs are configured, use VLAN names to identify them.

Examples

# Assign the name test vlan to VLAN 2.

<Sysname> system-view

[Sysname] vlan 2

[Sysname-vlan2] name test vlan

Related commands

display vlan

shutdown

Use shutdown to shut down a VLAN interface.

Use undo shutdown to bring up a VLAN interface.

Syntax

shutdown

undo shutdown

Default

A VLAN interface is up.

Views

VLAN interface view

Predefined user roles

network-admin

Usage guidelines

CAUTION

CAUTION:

Executing the shutdown command on a VLAN interface will disconnect the link of the VLAN interface and interrupt communication. Use this command with caution.

 

When a VLAN interface is not manually shut down, the following guidelines apply to the interface state:

·     The VLAN interface is down if all ports in the VLAN are down.

·     The VLAN interface is up if one or more ports in the VLAN are up.

When you use this command to shut down a VLAN interface, the VLAN interface remains in DOWN (Administratively) state. In this case, the VLAN interface state is not affected by the state of the ports in the VLAN.

Before you configure parameters for a VLAN interface, use this command to shut it down to prevent the configuration from affecting the network. After you complete the VLAN interface configuration, use the undo shutdown command to make the settings take effect.

To troubleshoot a failed VLAN interface, you can use the shutdown command and then the undo shutdown command on the interface to see whether it recovers.

In a VLAN, the state of each Ethernet port is independent of the state of the VLAN interface.

Examples

# Shut down VLAN-interface 2, and then bring it up.

<Sysname> system-view

[Sysname] interface vlan-interface 2

[Sysname-Vlan-interface2] shutdown

[Sysname-Vlan-interface2] undo shutdown

vlan

Use vlan vlan-id to create a VLAN and enter its view or enter the view of an existing VLAN.

Use vlan vlan-id-list to batch create VLANs except reserved VLANs.

Use undo vlan to delete the specified VLANs.

Syntax

vlan vlan-id-list

undo vlan vlan-id-list

Default

VLAN 1 (system default VLAN) exists.

Views

System view

Predefined user roles

network-admin

Parameters

vlan-id-list: Specifies a space-separated list of up to 32 VLAN 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.

Usage guidelines

You cannot create or delete the system default VLAN (VLAN 1) or reserved VLANs.

Before you delete a dynamic VLAN or a VLAN locked by an application, you must first remove the configuration from the VLAN.

Examples

# Create VLAN 2 and enter its view.

<Sysname> system-view

[Sysname] vlan 2

[Sysname-vlan2]

# Create VLANs 4 through 100 and VLAN 200.

<Sysname> system-view

[Sysname] vlan 4 to 100 200

Related commands

display vlan

Port-based VLAN commands

display port

Use display port to display information about hybrid or trunk ports.

Syntax

display port { hybrid | trunk }

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

hybrid: Specifies hybrid ports.

trunk: Specifies trunk ports.

Examples

# Display information about hybrid ports.

<Sysname> display port hybrid

Interface            PVID  VLAN Passing

GE0/0/1              100   Tagged:  1000, 1002, 1500, 1600-1611, 2000,

                                    2555-2558, 3000, 4000

                           Untagged:1, 10, 15, 18, 20-30, 44, 55, 67, 100,

                                    150-160, 200, 255, 286, 300-302

# Display information about trunk ports.

<Sysname> display port trunk

Interface            PVID  VLAN Passing

GE0/0/2              2     1-4, 6-100, 145, 177, 189-200, 244, 289, 400,

                           555, 600-611, 1000, 2006-2008

Table 4 Command output

Field

Description

Interface

Interface name.

PVID

Port VLAN ID.

VLAN Passing

Existing VLANs allowed on the port.

Tagged

VLANs from which the port sends packets without removing VLAN tags.

Untagged

VLANs from which the port sends packets after removing VLAN tags.

port

Use port to assign the specified access ports to a VLAN.

Use undo port to remove the specified access ports from a VLAN.

Syntax

port interface-list

undo port interface-list

Default

All ports are in VLAN 1.

Views

VLAN view

Predefined user roles

network-admin

Parameters

interface-list: Specifies a space-separated list of up to 10 Ethernet interface items. Each item specifies an Ethernet interface or a range of Ethernet interfaces in the form of interface-type interface-number1 to interface-type interface-number2. The value for the interface-number2 argument must be equal to or greater than the value for the interface-number1 argument.

Usage guidelines

This command is applicable only to access ports. This command cannot assign access ports to or remove access ports from VLAN 1.

By default, all ports are access ports. You can manually configure the port link type. For more information, see "port link-type."

Examples

# Assign GigabitEthernet 0/0/1 through GigabitEthernet 0/0/3 to VLAN 2.

<Sysname> system-view

[Sysname] vlan 2

[Sysname-vlan2] port gigabitethernet 0/0/1 to gigabitethernet 0/0/3

Related commands

display vlan

port access vlan

Use port access vlan to assign an access port to the specified VLAN.

Use undo port access vlan to restore the default.

Syntax

port access vlan vlan-id

undo port access vlan

Default

All access ports belong to VLAN 1.

Views

Layer 2 aggregate interface view

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Parameters

vlan-id: Specifies a VLAN by its ID in the range of 1 to 4094.

Usage guidelines

By default, all access ports belong to VLAN 1. Therefore, this command cannot be used to assign access ports to VLAN 1. To move an access port to VLAN 1, execute the undo port access vlan command on the access port.

Before assigning an access port to a VLAN, make sure the VLAN has been created.

Examples

# Assign GigabitEthernet 0/0/1 to VLAN 3.

<Sysname> system-view

[Sysname] vlan 3

[Sysname-vlan3] quit

[Sysname] interface gigabitethernet 0/0/1

[Sysname-GigabitEthernet0/0/1] port access vlan 3

port hybrid pvid

Use port hybrid pvid to set the PVID of a hybrid port.

Use undo port hybrid pvid to set the PVID of a hybrid port to 1.

Syntax

port hybrid pvid vlan vlan-id

undo port hybrid pvid

Default

The PVID of a hybrid port is the ID of the VLAN to which the port belongs when its link type is access.

Views

Layer 2 aggregate interface view

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Parameters

vlan-id: Specifies a VLAN by its ID in the range of 1 to 4094.

Usage guidelines

You can use a nonexistent VLAN as the PVID of a hybrid port. When you delete the PVID of a hybrid port by using the undo vlan command, the PVID setting of the port does not change.

For correct packet transmission, set the same PVID for a local hybrid port and its peer.

To enable a hybrid port to transmit packets from its PVID, you must assign the hybrid port to the PVID by using the port hybrid vlan command.

Examples

# Configure GigabitEthernet 0/0/1 as a hybrid port, set its PVID to VLAN 100, and assign it to VLAN 100 as an untagged member.

<Sysname> system-view

[Sysname] vlan 100

[Sysname-vlan100] quit

[Sysname] interface gigabitethernet 0/0/1

[Sysname-GigabitEthernet0/0/1] port link-type hybrid

[Sysname-GigabitEthernet0/0/1] port hybrid pvid vlan 100

[Sysname-GigabitEthernet0/0/1] port hybrid vlan 100 untagged

Related commands

port hybrid vlan

port link-type

port hybrid vlan

Use port hybrid vlan to assign a hybrid port to the specified VLANs.

Use undo port hybrid vlan to remove a hybrid port from the specified VLANs.

Syntax

port hybrid vlan vlan-id-list { tagged | untagged }

undo port hybrid vlan vlan-id-list

Default

A hybrid port is an untagged member of the VLAN to which the port belongs when its link type is access.

Views

Layer 2 aggregate interface view

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Parameters

vlan-id-list: Specifies a space-separated list of up to 32 VLAN 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. The specified VLANs must already exist on the device.

tagged: Configures the port as a tagged member of the specified VLANs. A tagged member of a VLAN sends packets from the VLAN without removing VLAN tags.

untagged: Configures the port as an untagged member of the specified VLANs. An untagged member of a VLAN sends packets from the VLAN after removing VLAN tags.

Usage guidelines

A hybrid port can allow multiple VLANs. If you execute this command multiple times on a hybrid port, the hybrid port allows all the specified VLANs.

Examples

# Configure GigabitEthernet 0/0/1 as a hybrid port, and assign it to VLAN 2, VLAN 4, and VLAN 50 through VLAN 100 as a tagged member.

<Sysname> system-view

[Sysname] interface gigabitethernet 0/0/1

[Sysname-GigabitEthernet0/0/1] port link-type hybrid

[Sysname-GigabitEthernet0/0/1] port hybrid vlan 2 4 50 to 100 tagged

Related commands

port link-type

port link-type

Use port link-type to set the link type of a port.

Use undo port link-type to restore the default link type of a port.

Syntax

port link-type { access | hybrid | trunk }

undo port link-type

Default

Each port is an access port.

Views

Layer 2 aggregate interface view

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Parameters

access: Sets the port link type to access.

hybrid: Sets the port link type to hybrid.

trunk: Sets the port link type to trunk.

Usage guidelines

To change the link type of a port from trunk to hybrid or vice versa, first set the link type to access.

Examples

# Configure GigabitEthernet 0/0/1 as a trunk port.

<Sysname> system-view

[Sysname] interface gigabitethernet 0/0/1

[Sysname-GigabitEthernet0/0/1] port link-type trunk

port trunk permit vlan

Use port trunk permit vlan to assign a trunk port to the specified VLANs.

Use undo port trunk permit vlan to remove a trunk port from the specified VLANs.

Syntax

port trunk permit vlan { vlan-id-list | all }

undo port trunk permit vlan { vlan-id-list | all }

Default

A trunk port allows packets only from VLAN 1 to pass through.

Views

Layer 2 aggregate interface view

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Parameters

vlan-id-list: Specifies a space-separated list of up to 32 VLAN 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.

all: Specifies all VLANs. To prevent unauthorized VLAN users from accessing restricted resources through the port, use the port trunk permit vlan all command with caution.

Usage guidelines

A trunk port can allow multiple VLANs. If you execute this command multiple times on a trunk port, the trunk port allows all the specified VLANs.

On a trunk port, packets only from the PVID can pass through untagged.

Examples

# Configure GigabitEthernet 0/0/1 as a trunk port, and assign it to VLAN 2, VLAN 4, and VLAN 50 through VLAN 100.

<Sysname> system-view

[Sysname] interface gigabitethernet 0/0/1

[Sysname-GigabitEthernet0/0/1] port link-type trunk

[Sysname-GigabitEthernet0/0/1] port trunk permit vlan 2 4 50 to 100

Related commands

port link-type

port trunk pvid

Use port trunk pvid to set the PVID for a trunk port.

Use undo port trunk pvid to restore the default.

Syntax

port trunk pvid vlan vlan-id

undo port trunk pvid

Default

The PVID of a trunk port is VLAN 1.

Views

Layer 2 aggregate interface view

Layer 2 Ethernet interface view

Predefined user roles

network-admin

Parameters

vlan-id: Specifies a VLAN by its ID in the range of 1 to 4094.

Usage guidelines

You can use a nonexistent VLAN as the PVID for a trunk port. When you delete the PVID of a trunk port by using the undo vlan command, the PVID setting of the port does not change.

For correct packet transmission, set the same PVID for a local trunk port and its peer.

To enable a trunk port to transmit packets from its PVID, you must assign the trunk port to the PVID by using the port trunk permit vlan command.

Examples

# Configure GigabitEthernet 0/0/1 as a trunk, set its PVID to VLAN 100, and assign it to VLAN 100.

<Sysname> system-view

[Sysname] interface gigabitethernet 0/0/1

[Sysname-GigabitEthernet0/0/1] port link-type trunk

[Sysname-GigabitEthernet0/0/1] port trunk pvid vlan 100

[Sysname-GigabitEthernet0/0/1] port trunk permit vlan 100

Related commands

port link-type

port trunk permit vlan

VLAN group commands

display vlan-group

Use display vlan-group to display VLAN group information.

Syntax

display vlan-group [ group-name ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

group-name: Specifies a VLAN group by its name, a case-sensitive string of 1 to 31 characters. The first character must be an alphabetical character. If you do not specify this argument, the command displays information about all VLAN groups.

Examples

# Display information about VLAN group test001.

<Sysname> display vlan-group test001

VLAN group: test001

     VLAN list: 2-4 100 200

# Display information about all VLAN groups.

<Sysname> display vlan-group

VLAN group: test001

     VLAN list: 2-4 100 200

VLAN group: rnd

     VLAN list: Null

Table 5 Command output

Field

Description

VLAN group

Name of the VLAN group.

VLAN list

VLAN list in the VLAN group.

Related commands

vlan-group

vlan-list

vlan-group

Use vlan-group to create a VLAN group and enter its view, or enter the view of an existing VLAN group.

Use undo vlan-group to delete a VLAN group.

Syntax

vlan-group group-name

undo vlan-group group-name

Default

No VLAN groups exist.

Views

System view

Predefined user roles

network-admin

Parameters

group-name: Specifies a VLAN group by its name, a case-sensitive string of 1 to 31 characters. The first character must be an alphabetical character.

Usage guidelines

A VLAN group includes a set of VLANs. You can add multiple VLAN lists to a VLAN group.

Examples

# Create a VLAN group named test001 and enter VLAN group view.

<Sysname> system-view

[Sysname] vlan-group test001

[Sysname-vlan-group-test001]

Related commands

vlan-list

vlan-list

Use vlan-list to add VLANs to a VLAN group.

Use undo vlan-list to remove VLANs from a VLAN group.

Syntax

vlan-list vlan-id-list

undo vlan-list vlan-id-list

Default

No VLANs exist in a VLAN group.

Views

VLAN group view

Predefined user roles

network-admin

Parameters

vlan-id-list: Specifies a space-separated list of up to 10 VLAN 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.

Examples

# Add VLAN 2 through VLAN 4, VLAN 100, and VLAN 200 to VLAN group test001.

<Sysname> system-view

[Sysname] vlan-group test001

[Sysname-vlan-group-test001] vlan-list 2 to 4 100 200

Related commands

vlan-group

 

 


Super VLAN commands

display supervlan

Use display supervlan to display information about super VLANs and their associated sub-VLANs.

Syntax

display supervlan [ supervlan-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

supervlan-id: Specifies a super VLAN ID in the range of 1 to 4094. If you do not specify a super VLAN ID, this command displays information about all super VLANs and their associated sub-VLANs.

Examples

# Display information about super VLAN 2 and its associated sub-VLANs.

<Sysname> display supervlan 2

 Super VLAN ID: 2

 Sub-VLAN ID: 3-5

 

 VLAN ID: 2

 VLAN type: Static

 It is a super VLAN.

 Route interface: Configured

 IPv4 address: 10.153.17.41

 IPv4 subnet mask: 255.255.252.0

 IPv6 global unicast addresses:

   2001::1, subnet is 2001::/64 [TENTATIVE]

 Description: VLAN 0002

 Name: VLAN 0002

 Tagged ports:   None

 Untagged ports: None

 

 VLAN ID: 3

 VLAN type: Static

 It is a sub VLAN.

 Route interface: Configured

 IPv4 address: 10.153.17.41

 IPv4 subnet mask: 255.255.252.0

 IPv6 global unicast addresses:

   2001::1, subnet is 2001::/64 [TENTATIVE]

 Description: VLAN 0003

 Name: VLAN 0003

 Tagged ports:   None

 Untagged ports:

    GigabitEthernet0/0/3

 

 VLAN ID: 4

 VLAN type: Static

 It is a sub VLAN.

 Route interface: Configured

 IPv4 address: 10.153.17.41

 IPv4 subnet mask: 255.255.252.0

 IPv6 global unicast addresses:

   2001::1, subnet is 2001::/64 [TENTATIVE]

 Description: VLAN 0004

 Name: VLAN 0004

 Tagged ports:   None

 Untagged ports:

    GigabitEthernet0/0/4

Table 6 Command output

Field

Description

VLAN type

VLAN type, dynamic or static.

Route interface

Whether a VLAN interface is configured for the VLAN.

IPv4 address

Primary IPv4 address of the VLAN interface. This field is displayed only when an IPv4 address is configured for the VLAN interface.

When the VLAN interface is also configured with secondary IPv4 addresses, you can view them by using one of the following commands:

·     display interface vlan-interface.

·     display this (VLAN interface view).

IPv4 subnet mask

Subnet mask for the primary IPv4 address of the VLAN interface. This field is displayed only when an IPv4 address is configured for the VLAN interface.

IPv6 global unicast addresses

Global unicast IPv6 address of the VLAN interface. This field is not displayed when no IPv6 address is configured for the VLAN interface.

The IPv6 address states are as follows:

·     TENTATIVE—Initial state. DAD is being performed or is to be performed on the address. An address in this state cannot be used as the source address or destination address of packets.

·     DUPLICATE—DAD has been completed for the address. The address is not unique on the link and cannot be used.

·     PREFERRED—The address is preferred and can be used as the source or destination address of a packet. If an address is in this state, the command does not display the address state.

·     DEPRECATED—The address is beyond the preferred lifetime but within the valid lifetime. It is valid, but it cannot be used as the source address for a new connection. Packets destined to the address are processed correctly.

Description

VLAN description.

Name

VLAN name.

Tagged ports

Tagged members of the VLAN.

Untagged ports

Untagged members of the VLAN.

Related commands

subvlan

supervlan

subvlan

Use subvlan to associate a super VLAN with the specified sub-VLANs.

Use undo subvlan to dissociate sub-VLANs from a super VLAN.

Syntax

subvlan vlan-id-list

undo subvlan [ vlan-id-list ]

Default

A super VLAN is not associated with any sub-VLANs.

Views

VLAN view

Predefined user roles

network-admin

Parameters

vlan-id-list: Specifies a space-separated list of up to 10 sub-VLAN items. Each item specifies a sub-VLAN ID or a range of sub-VLAN IDs in the form of vlan-id1 to vlan-id2. The value range for sub-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

Make sure sub-VLANs already exist before you associate them with a super VLAN.

You can add ports to and remove ports from a sub-VLAN that is already associated with a super VLAN.

When you use the undo subvlan command, follow these guidelines:

·     If you do not specify the vlan-id-list argument, this command dissociates all sub-VLANs from the current super VLAN.

·     If you specify the vlan-id-list argument, this command dissociates the specified sub-VLANs from the current super VLAN.

Examples

# Associate super VLAN 10 with sub-VLANs 3, 4, and 5.

<Sysname> system-view

[Sysname] vlan 3 to 5

[Sysname] vlan 10

[Sysname-vlan10] supervlan

[Sysname-vlan10] subvlan 3 to 5

Related commands

display supervlan

supervlan

supervlan

Use supervlan to configure a VLAN as a super VLAN.

Use undo supervlan to restore the default.

Syntax

supervlan

undo supervlan

Default

A VLAN is not a super VLAN.

Views

VLAN view

Predefined user roles

network-admin

Usage guidelines

As a best practice, do not configure VRRP for a super VLAN interface, because the configuration affects network performance.

Layer 2 multicast configuration for super VLANs does not take effect because they do not have physical ports.

Examples

# Configure VLAN 2 as a super VLAN.

<Sysname> system-view

[Sysname] vlan 2

[Sysname-vlan2] supervlan

Related commands

display supervlan

subvlan