if-match 8021p

Function

The if-match 8021p command configures a matching rule based on the 802.1p priority of VLAN packets in a traffic classifier.

The undo if-match 8021p command deletes a matching rule based on the 802.1p priority of VLAN packets in a traffic classifier.

By default, a matching rule based on the 802.1p priority of VLAN packets is not configured in a traffic classifier.

Format

if-match 8021p 8021p-value &<1-8>

undo if-match 8021p

Parameters

Parameter	Description	Value
8021p-value	Specifies the 802.1p priority of VLAN packets.	The value is an integer that ranges from 0 to 7. A larger value indicates a higher priority in VLAN packets.

Views

Traffic classifier view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

You can run the if-match 8021p command to classify traffic based on the 802.1p priority in VLAN packets so that the device processes packets matching the same traffic classifier in the same manner.

Prerequisites

A traffic classifier has been created using the traffic classifier command in the system view.

Precautions

For a Layer 2 network, run the if-match 8021p command; for a Layer 3 network, run the if-match dscp command.

After the remark 8021p, add-tag vlan-id, remark cvlan-id, and remark vlan-id commands are used, the system modifies VLAN tags of packets according to the re-marking configuration. These actions are called VLAN-based actions.

Regardless of whether the relationship between traffic classification rules is AND or OR, if you enter multiple values of 802.1p priorities, the packet that matches one 802.1p priority matches a rule.

If you run the if-match 8021p command in the same traffic classifier view multiple times, only the latest configuration takes effect.

Example

# Configure a matching rule based on the 802.1p priority of 1 in the traffic classifier c1.

<HUAWEI> system-view
[HUAWEI] traffic classifier c1 operator and
[HUAWEI-classifier-c1] if-match 8021p 1