H3C S5500-SI Series, Operation Manual

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3-6
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An S5500-SI switch supports up to eight voice VLANs globally.
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You can configure different voice VLANs on different ports at the same time. However, one port
can be configured with only one voice VLAN, and this voice VLAN must be a static VLAN that
already exists on the device.
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Voice VLAN is mutually exclusive with Link Aggregation Control Protocol (LACP) on a port.
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To make voice VLAN take effect on a port which is enabled with voice VLAN and operates in
manual voice VLAN assignment mode, you need to assign the port to the voice VLAN manually.
Displaying and Maintaining Voice VLAN
To do... Use the command... Remarks
Display the voice VLAN state display voice vlan state Available in any view
Display the OUI addresses
currently supported by system
display voice vlan oui Available in any view
Voice VLAN Configuration Examples
Automatic Voice VLAN Mode Configuration Example
Network requirements
As shown in Figure 3-1 ,
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The MAC address of IP phone A is 0011-1100-0001. The phone connects to a downstream device
named PC A whose MAC address is 0022-1100-0002 and to GigabitEthernet 1/0/1 on an upstream
device named Device A.
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The MAC address of IP phone B is 0011-2200-0001. The phone connects to a downstream device
named PC B whose MAC address is 0022-2200-0002 and to GigabitEthernet 1/0/2 on Device A.
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Device A uses voice VLAN 2 to transmit voice packets for IP phone A and voice VLAN 3 to transmit
voice packets for IP phone B.
Configure GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 to work in automatic voice VLAN
assignment mode. In addition, if one of them has not received any voice packet in 30 minutes, the port
is removed from the corresponding voice VLAN automatically.