Chapter 22: Three-port switch and VLAN
functionality
System overview
The Full VLAN support feature can create an IP Deskphone Voice VLAN and PC Data VLAN on the
three-port switch manually or automatically (see Figure 23: Voice-VLAN and Data VLAN on
page 226).
If both Data and Voice VLANs are enabled on a three-port switch, only the frames with Data and
Voice VLAN tagged go to the networks. The IP Deskphone receives only the frames with Voice
VLAN tagged and sends the frames with Voice VLAN tagged, while PC or Local Networks receive
all kinds of frames.
When only voice VLAN is enabled on the three-port switch, all kinds of frames go to the Network,
the IP Deskphone receives only the frames with Voice VLAN tagged and sends all frames with
Voice VLAN tagged. PC or Local Networks receive all kinds of frames.
March 2015 SIP Software for Avaya 1200 Series IP Deskphones-Administration 225
Comments? infodev@avaya.com
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