Avaya J100 Series Installing And Administering page 30

Initial setup and connectivity
VLAN separation modes
Avaya J100 Series IP Phones supports two VLAN separation modes:
• No VLAN separation mode: In this mode the CPU port of the port receives untagged frames
and tagged VLAN frames on any VLAN irrespective of whether the phone sends untagged
frames or tagged frames. This traffic can be received from the PC port or LAN port. The
filtering of the frames is done by the CPU itself. In order to reduce unnecessary traffic to the
CPU, the administrator should configure only the necessary VLANs on the external switch
port, in particular, voice VLAN and data VLAN.
• Full VLAN separation mode: This is the default mode. In this mode the CPU port of the phone
receives tagged frames with VLAN ID = L2QVLAN whether they are from the LAN port or PC
port. The PC port receives untagged or tagged frames with VLAN ID = PHY2VLAN from the
LAN port. The PC port cannot send any untagged frames or tagged frames with any VLAN
ID, including the voice VLAN ID, to the CPU. Frames received externally on the PC port can
only be sent to the LAN port if they are untagged frames or tagged frames with VLAN ID=
PHY2VLAN. In this mode, there is a complete separation between CPU port and PC port. In
order to configure Avaya J100 Series IP Phones to work in this mode all the following
conditions must be met:
- VLANSEPMODE = 1 (default)
- L2Q = 0 (auto, default) or 1 (tag)
- L2QVLAN is not equal to 0
- PHY2VLAN is not equal to 0
- L2QVLAN is not equal to PHY2VLAN
- The phone actually sends tagged VLAN frames. This means that the DHCP server on
voice VLAN (L2QVLAN) is reachable and the phone receives IP address on voice VLAN.
If one of these conditions is not met then the phone works in no VLAN separation mode where all
kinds of traffic reaches the CPU port of the phone.
Note:
The phone can send tagged VLAN frames on the voice VLAN (L2QVLAN), but still not work in
full VLAN separation mode. For example, when PHY2VLAN = 0 or VLANSEPMODE = 0.
External switch configuration
Configure the following for the external switch port:
• Bind VLAN to the voice VLAN (L2QVLAN) and the data VLAN (PHY2VLAN). It is important to
restrict the VLAN binding when in No VLAN separation mode. This is because there is no
filtering by the internal phone switch and the CPU of the phone is subject to all the traffic
going through the phone. When in Full VLAN separation mode, the internal phone switch will
filter any tagged VLAN frames with VLANs other than voice VLAN (L2QVLAN) and data
VLAN (PHY2VLAN) in any case. However, you must configure only the necessary VLANs on
the external switch port.
• Set the default VLAN as the data VLAN (PHY2VLAN). This is the VLAN assigned by the
external switch port to untagged frames received from phone LAN port.
August 2018 Installing and Administering Avaya J100 series IP Phones in third-party call control
setup
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