Security Mode And Normal Mode Of Voice Vlans - HP 1920 Series User Manual

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Security mode and normal mode of voice VLANs

Depending on their inbound packet filtering mechanisms, voice VLAN-enabled ports operate in one of
the following modes:
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Table 46 Required configurations on ports of different link types for them to support tagged voice
traffic
Voice VLAN assignment mode
Port link type supported for tagged voice
traffic
Access Manual
Trunk Automatic and manual
Hybrid Automatic and manual
IP phones send untagged voice traffic
When IP phones send untagged voice traffic, you can only configure the voice traffic receiving
ports on the device to operate in manual voice VLAN assignment mode.
Table 47 Required configurations on ports of different link types for them to support tagged voice
traffic
Voice VLAN assignment mode
Port link type supported for untagged voice
traffic
Access Manual
Trunk Manual
Hybrid Manual
If an IP phone sends tagged voice traffic and its access port is configured with 802.1X authentication
and guest VLAN, you must assign different VLAN IDs for the voice VLAN, the PVID of the access port,
and the 802.1X guest VLAN for the functions to operate normally.
If an IP phone sends untagged voice traffic, to deliver the voice VLAN function, you must configure the
PVID of the access port as the voice VLAN. As a result, 802.1X authentication does not take effect.
Normal mode—In this mode, both voice packets and non-voice packets are allowed to pass
through a voice VLAN-enabled inbound port. When receiving a voice packet, the port forwards it
without checking its source MAC address against the OUI addresses configured for the device. If
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Configuration requirements
Configure the PVID of the port as the voice VLAN.
In automatic mode, the PVID of the port cannot be
the voice VLAN.
In manual mode, configure the port to permit
packets of the voice VLAN to pass through.
In automatic mode, the PVID of the port cannot be
the voice VLAN.
In manual mode, configure the port to permit
packets of the voice VLAN to pass through tagged.
Configuration requirements
Configure the PVID of the port as the voice
VLAN.
Configure the PVID of the port as the voice
VLAN and assign the port to the voice VLAN.
Configure the PVID of the port as the voice
VLAN and configure the port to permit packets
of the voice VLAN to pass through untagged.
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