Three-Port Switch And Vlan Functionality; System Overview - Nortel 1120E Administration Manual

Three-port switch and VLAN
functionality

System overview

The Full VLAN support feature can create telephone Voice-VLAN and PC
Data-VLAN on the three-port switch of the IP Phone 1120E manually and
automatically (see
If both Data and Voice VLAN's are enabled on a three-port switch, only the
frames with Data and Voice VLAN tagged go to networks. The IP Phone
1120E 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 three-port switch, all kinds of frames
go to the Network, the IP Phone 1120E receives only the frames with Voice
VLAN tagged and send all frames with Voice VLAN tagged. PC or Local
Networks receive all kinds of frames.
Copyright © 2008, Nortel Networks
.
Figure 12 "Voice-VLAN and Data VLAN" (page
SIP Firmware Release 1.1 for IP Phone 1120E Administration
NN43112-300 02.03 Standard
27 May 2008
105
106)).