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Configuring voice VLANs
This chapter describes how to configure voice VLANs.
Overview
A voice VLAN is configured for voice traffic. After assigning the ports that connect to voice devices to a
voice VLAN, the system automatically configures QoS parameters for voice traffic, to improve the
transmission priority of voice traffic and ensure voice quality.
Common voice devices include IP phones and integrated access devices (IADs). Only IP phones are used
in the voice VLAN configuration examples in this document.
OUI addresses
A device determines whether a received packet is a voice packet by evaluating its source MAC address.
A packet whose source MAC address complies with the Organizationally Unique Identifier (OUI)
address of the voice device is regarded as voice traffic.
In general, as the first 24 bits of a MAC address (in binary format), an OUI address is a globally unique
identifier that IEEE assigns to a vendor. In this document, however, OUI addresses are addresses that the
system uses to determine whether a received packet is a voice packet. They are the results of the AND
operation of the arguments mac-address and oui-mask in the voice vlan mac-address command.
You can manually remove the default OUI address of a device and then add new ones. You can
configure the OUI addresses of a device in advance or use the default OUI addresses. Table 14 li
sts the
default OUI address for each vendor's devices.
Table 14 The default OUI addresses of different vendors
Number OUI address
Vendor
1 0001-E300-0000 Siemens phone
2 0003-6B00-0000 Cisco phone
3 0004-0D00-0000 Avaya phone
4 00D0-1E00-0000 Pingtel phone
5 0060-B900-0000 Philips/NEC phone
6 00E0-7500-0000 Polycom phone
7 00E0-BB00-0000 3Com phone
Voice VLAN assignment modes
A port can be assigned to a voice VLAN in one of the following modes:
• Automatic mode—The system matches the source MAC address carried in protocol packets sent
when an IP phone is powered on against the device's OUI addresses. If the system finds a match,
- H3C WX5540E Access Controller 1
- Switching Engine 1
- Preface 3
- Symbols 4
- Network topology icons 4
- Port numbering in examples 4
- Obtaining documentation 5
- Technical support 5
- Documentation feedback 5
- Contents 6
- Switch A Switch B 14
- Switch C 14
- Enabling auto power-down 17
- Bulk configuring interfaces 30
- Configuring MAC Information 39
- Operational key 44
- Configuration classes 44
- Reference port 44
- Link aggregation modes 45
- Choosing a reference port 46
- Configuring port isolation 63
- STP protocol packets 65
- Basic concepts in STP 66
- Path cost 67
- STP timers 71
- MSTP features 73
- MSTP basic concepts 73
- MST region 74
- Regional root 75
- Common root bridge 75
- Port roles 75
- How MSTP works 76
- STP configuration task list 78
- RSTP configuration task list 79
- PVST configuration task list 80
- MSTP configuration task list 81
- Configuring an MST region 82
- Configuring edge ports 89
- Performing mCheck 96
- Configuring digest snooping 97
- <DeviceB> system-view 99
- Configuration prerequisites 100
- Configuration procedure 100
- Configuration example 101
- Enabling BPDU guard 101
- Enabling root guard 102
- Enabling loop guard 102
- Enabling TC-BPDU guard 103
- Enabling BPDU drop 104
- MSTP configuration example 105
- PVST configuration example 109
- Configuring BPDU tunneling 113
- Enabling BPDU tunneling 116
- Network requirements 117
- Configuring VLANs 120
- VLAN frame encapsulation 121
- VLAN types 122
- Protocols and standards 122
- Configuring port-based VLANs 125
- Frame handling on a port 126
- Verifying the configuration 130
- Configuring MAC-based VLANs 131
- Configuration considerations 136
- Configuration guidelines 142
- Task Command 143
- Remarks 143
- Configuring super VLANs 144
- Name: VLAN 0005 148
- Tagged Ports: none 148
- Untagged Ports: 148
- Configuring voice VLANs 158
- VLAN assignment mode 162
- Configuring GVRP 169
- GARP timers 170
- GARP PDU format 171
- Introduction to GVRP 172
- GVRP registration modes 172
- GVRP configuration task list 173
- Configuring GVRP functions 173
- Configuring the GARP timers 174
- GVRP configuration examples 176
- Configuring LLDP 181
- LLDPDUs 182
- LLDP-MED TLVs 184
- Working mechanism 185
- LLDP configuration task list 186
- Enabling LLDP polling 188
- Configuring LLDP trapping 193
- LLDP configuration examples 194
- Overview 199
- Configuring MVRP 203
- MRP messages 204
- MRP timers 205
- MVRP configuration task list 206
- Enabling MVRP 207
- Configuring MRP timers 208
- Enabling GVRP compatibility 209
- Configuring Device B 212
- Configuring Device C 213
- Configuring Device D 214
- 1(default), 10 219
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