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AR500, AR510, and AR530 V200R007 CLI-based Configuration Guide - Ethernet Switching

This document describes the configuration of Ethernet services, including configuring transparent bridge, MAC table, link aggregation, VLANs, STP/RSTP/MSTP, and so on.The document provides the configuration procedures and configuration examples to illustrate the service configuration methods and application scenario.
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(Optional) Configuring an 802.1p Priority and a DSCP Value for the Voice VLAN

(Optional) Configuring an 802.1p Priority and a DSCP Value for the Voice VLAN

Context

By default, the 802.1p priority and DSCP value for a voice VLAN are 6 and 46 respectively. Manual configuration of the 802.1p priority and DSCP value will allow you to plan priorities for different voice services at will.

The 802.1p priority is indicated by the value in the 3-bit PRI field in each 802.1Q VLAN frame. This field determines the transmission priority for data packets when a switching device is congested.

The DSCP value is indicated by the 6 bits in the Type of Service (ToS) field in the IPv4 packet header. DSCP, as the signaling for DiffServ, is used for QoS guarantee on IP networks. The traffic controller on the network gateway takes actions merely based on the information carried by the 6 bits.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    voice-vlan remark { 8021p 8021p-value | dscp dscp-value } *

    An 802.1p priority and a DSCP value are configured for a voice VLAN.

    By default, the 802.1p priority and DSCP value for a voice VLAN are 6 and 46 respectively.

    NOTE:

    Only the AR509G-L-D-H and AR509GW-L-D-Hsupport this function.

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Updated: 2019-05-25

Document ID: EDOC1000097279

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