Avaya J100 Series IP Phones have an internal network switch that can use VLANs to segregate traffic between the LAN port, the PC port, and the internal port that goes to the CPU of the phone. You can configure VLAN on this switch to isolate the network traffic to the phone CPU and the PC port.

To configure the internal switch of the phone, use the 46xxsettings.txt file, LLDP, or DHCP. You can configure the VLAN settings on the internal switch of the phone using DHCP or LLDP as these protocols run before and during network initialization. Alternatively, use the 46xxsettings.txt configuration parameters and start VLAN in the default automatic mode.