H3c-technologies H3C WX5500E Series Access Controllers Manuel d'utilisateur Page 192
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181
Ste
p
Command
Remarks
3. Enter Ethernet interface view
or port group view.
• Enter Layer 2 Ethernet interface
view:
interface interface-type
interface-number
• Enter port group view:
port-group manual
port-group-name
Use either command.
4. Configure CDP-compatible
LLDP to operate in TxRx mode.
lldp compliance admin-status cdp
txrx
By default, CDP-compatible LLDP
operates in Disable mode.
Enabling LLDP to automatically discover IP phones
In a traditional voice VLAN network, the switch maps the source MAC addresses of IP phones to a limited
number of OUI addresses to allow them to access the network. This method restricts the types of IP
phones on the network, if the IP phones with the source MAC addresses match the same OUI address are
categorized as a type.
To break the restriction, you can enable the switch to automatically discover IP phones through LLDP. With
this function, the switch can automatically discover the peer, and exchange LLDP TLVs with the peer. If the
LLDP System Capabilities TLV received on a port shows that the peer is phone capable, the switch
determines that the peer is an IP phone and sends an LLDP TLV carrying the voice VLAN configuration to
the peer.
When the IP phone discovery process is complete, the port will automatically join the voice VLAN and
improve the transmission priority of the voice traffic for the IP phone. To ensure that the IP phone can pass
authentication, the switch will add the MAC address of the IP phone to the MAC address table.
For more information about voice VLANs, see "Configuring voice VLANs."
Configuration prerequisites
Before you enable the switch to automatically discover IP phones through LLDP, complete the following
tasks:
• Enable LLDP globally and on ports.
• Configure voice VLANs.
Configuration procedure
Ste
p
Command
Remarks
1. Enter system view.
system-view N/A
2. Enable LLDP to automatically
discover IP phones.
voice vlan track lldp Disabled by default.
- 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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