Virtual Lan (Vlan) Overview; Vlan Separation - Avaya J129 Installing And Administering

File Server configuration
Parameter Set to
IPADD The yiaddr parameter
LOGSRVR Option 7, if received
MTU_SIZE Option 26
NETMASK Option 1, if received
ROUTER Option 3, if received, which might be a list of IP addresses
SNTPSRVR Option 42

Virtual LAN (VLAN) overview

VLANs provide a means to segregate your network into distinct groups or domains. They also
provide a means to prioritize the network traffic into each of these distinct domains. For example, a
network may have a Voice VLAN and a Data VLAN. Grouping devices that have a set of common
requirements can greatly simplify network design, increase scalability, improve security, and improve
network management. Therefore, you must always use VLANs in your network.
The networking standard that describes VLANs is IEEE 802.1Q. This standard describes, in detail,
the 802.1Q protocol and how Ethernet frames get an additional 4 byte tag inserted at the beginning
of the frame. This additional VLAN tag describes the VLAN ID that a particular device belongs to,
and the priority of the VLAN tagged frame. Voice and video traffic typically get a higher priority in the
network as they are subject to degradation caused by network jitter and delay.

VLAN separation

The Avaya J129 IP Phone has an internal network switch that is capable of using 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 have VLAN functionality on this switch and configure the switch to isolate the traffic
destined for the CPU of the phone from the data destined to the PC port.
The configuration of the internal switch of the phone can be done through the Settings file, LLDP
or DHCP. It is preferable to configure the VLAN settings on the internal switch of the phone through
DHCP or LLDP as these protocols are run prior to, and during, network initialization. If that is not
possible then the Settings file configuration parameters can be used and the VLAN can be
started in automatic mode, which is the default mode.
September 2017 Installing and Administering Avaya J129 IP Phone
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