Vlan Parameters - Avaya J100 Series Installing

Automatic failback of VLAN tagging
The phone connects to a network when the value of L2QVLAN does not match with the VLAN
being assigned to the network access switch. When the phone starts to connect, it tries to contact
the DHCP server with a VLAN ID=L2QVLAN. If the phone does not receive a DHCPOFFER with
that particular VLAN ID, then it eventually fails back. The phone tries to contact the DHCP server
again if the VLAN functionality of the phone is set to one of the following:
• L2Q=1: With a VLANID =0
• L2Q=0: Without any VLAN tag
The VLANTEST parameter determines how long the phone waits for a recognizable
DHCPOFFER. If VLANTEST= 0, then the phone does not fail back and keeps sending DHCP
requests by using tagged VLAN frames with VLAN ID = L2QVLAN.
VLAN support on the computer or PC port
In full VLAN separation mode, the phone only supports one VLAN on the computer port. In no
VLAN separation mode, all VLANs pass between the LAN and PC ports. However, the CPU port
receives all traffic even on VLANs that are not equal to L2QVLAN.
Related links
Virtual LAN (VLAN) overview

VLAN parameters

The following configuration parameters are used to configure VLAN functionality on the network
switch internal to the phone.
Parameter name
L2Q
December 2018
on page 114
Default value
0
Installing and Administering Avaya J100 Series IP Phones
Comments on this document? infodev@avaya.com
Virtual LAN (VLAN) overview
Description
Specifies the VLAN tagging is enabled or
disabled.
Value operation:
• 0: Auto. VLAN tagging is turned on when the
network can support VLAN tagging and
L2QVLAN is non zero.
• 1: On. VLAN tagging is turned on when the
network can support VLAN tagging. The IP
phone sends tagged frames with VLAN =
L2QVLAN, even if L2QVLAN is set to 0.
• 2: Off. VLAN functionality is disabled.
L2Q is configured through:
• Local admin procedure
• A name equal to value pair in DHCPACK
message
• SET command in the Settings file
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