port (VLAN view)

Function

The port command sets a default VLAN for interfaces and adds interfaces to the VLAN.

The undo port command deletes the interfaces from the default VLAN and restores the default VLAN ID.

By default, no default VLAN is set for interfaces.

Format

port interface-type { interface-number1 [ to interface-number2 ] } &<1-10>

port interface-name

undo port interface-type { interface-number1 [ to interface-number2 ] } &<1-10>

undo port interface-name

Parameters

Parameter	Description	Value
interface-type	Specifies the interface type.	-
interface-number1	Specifies the start number of an interface.	-
interface-number2	Specifies the end number of an interface.	-
interface-name	Specifies the interface name.	-

Views

VLAN view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
vlan	write

Usage Guidelines

Usage Scenario

Frames sent from user hosts are untagged and those sent from a remote device may also be untagged. However, a switching device only processes and forwards tagged frames. Therefore, tags need to be added to the untagged frames on the switching device. To implement this function, run the port default vlan command to configure a default VLAN on an interface of the switching device. After this function is enabled, the interface adds the default VLAN ID to received untagged frames.

After a default VLAN is configured on an interface:

The interface inserts the default VLAN ID to a received untagged frame if the link type of the interface is access or hybrid.

When the interface receives a tagged frame:

If the interface type is access and the VLAN ID in the tag is the same as the default VLAN ID, the access interface forwards the frame.

If the VLAN ID in the tag is different from the default VLAN ID, the access interface discards the frame.

If the interface type is hybrid and the VLAN ID in the tag is in the permitted VLAN ID list, the hybrid interface forwards the frame.

If the VLAN ID is not in the permitted VLAN ID list, the hybrid interface discards the frame.

When the interface sends a tagged frame:

If the interface type is access, the access interface removes the VLAN tag and then forwards the frame.

If the interface type is hybrid, the hybrid interface removes or keeps the VLAN tag in a frame as required and then forwards the frame.

Prerequisites

The link type of the interface has been configured as access or hybrid or dot1q-tunnel using the port link-type command.

Precautions

The port command has the same function as the port default vlan command in the interface view.

Before you specify an interface range, note that:

1.The interface types must be the same.

2.The interfaces in the range must exist.

3.If the port command is run more than once, all configurations take effect.

4.The interface to be added to a VLAN must be a Layer 2 interface. If the interface is a Layer 3 interface, run the portswitch command to switch the interface to Layer 2. The port default vlan command cannot be configured on physical interfaces that are added to an Eth-Trunk.

Example

# Add GE interfaces 0/1/0 to 0/1/1 to VLAN 3.

<HUAWEI> system-view
[~HUAWEI] interface GigabitEthernet 0/1/0
[~HUAWEI-GigabitEthernet0/1/0] portswitch
[*HUAWEI-GigabitEthernet0/1/0] port link-type access
[*HUAWEI-GigabitEthernet0/1/0] quit
[*HUAWEI] interface GigabitEthernet 0/1/1
[*HUAWEI-GigabitEthernet0/1/1] portswitch
[*HUAWEI-GigabitEthernet0/1/1] port link-type access
[*HUAWEI-GigabitEthernet0/1/1] quit
[*HUAWEI] vlan 3
[*HUAWEI-vlan3] port GigabitEthernet 0/1/0 to 0/1/1