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Configuration Guide - Ethernet Switching

S7700 and S9700 V200R012C00

This document describes the configuration of Ethernet services, including configuring MAC address table, link aggregation, VLANs, VLAN aggregation, MUX VLAN, VLAN termination, Voice VLAN, VLAN mapping, QinQ, GVRP, VCMP, STP/RSTP/MSTP, VBST, SEP, RRPP, ERPS, LBDT, HVRP, and Layer 2 protocol transparent transmission.
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Application Scenarios for Voice VLANs

Application Scenarios for Voice VLANs

Figure 9-5 shows PCs and IP phones connecting to the Internet through switches. Because the voice service is sensitive to delay and jitter, the priority of voice data flows needs to be increased so that they can be preferentially forwarded when congestion occurs.

Figure 9-5  Applicable scenario of the voice VLAN

Configure a voice VLAN based on the type of voice packets sent by IP phones:
  • Configure MAC address-based voice VLAN when voice packets are untagged or tagged with VLAN 0.
  • Configure VLAN ID-based voice VLAN when IP phones can obtain voice VLAN information on the switch.
Updated: 2019-01-18

Document ID: EDOC1100038843

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