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ATL Telecom AM2 User Manual

Page 75

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ATL User Guide

AM2 G.SHDSL Modem

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7.3.2.1.5

VLAN

Virtual LAN (VLAN) is defined as a group of devices on one or more LANs that are configured so that they can
communicate as if they were attached to the same wire, when in fact they are located on a number of
different LAN segments. Because VLAN is based on logical instead of physical connections, it is extremely
flexible.

You can setup the Virtual LAN (VLAN) parameters using the vlan command. The AM2 supports the
implementation of VLAN-to-PVC only in bridge mode operation, i.e., the VLAN spreads over both the COE
and CPE sides, where there is no layer 3 routing involved. The unit supports up to 8 active VLANs with shared
VLAN learning (SVL) bridge out of 4096 possible VLANs specified in IEEE 802.1Q.

From the setup menu, move the cursor " >> " to the vlan command and press the enter key .The screen
will now display the following sub-menu.

>>

mode

Trigger virtual LAN function

modify

Modify virtual LAN rule

pvid

Modify port default ID

link_mode

Modify port link type

list

Show VLAN configuration

Mode

To activate the VLAN function, move the cursor " >> " to mode command and press the enter key. The
products support two types of VLAN, 802.1q and Port-Based. IEEE 802.1q defines the operation of VLAN
bridges that permits the definition, operation, and administration of VLAN topologies within a bridged LAN
infrastructure. Port-Based VLANs are VLANs where the packet forwarding decision is based on the destination
MAC address and its associated port. On selecting the mode command the following message is displayed.
Use the TAB key to switch betwen the two options, Port or 802.1q.

Command: setup vlan active
Message: Please input the following information.
Tigger VLAN function (Tab select) :

Modify

To modify the VLAN rule, move the cursor " >> " to the modify command and press the enter key.

Command: setup vlan modify <1~8> <1~4094>
Message: Please input the following information.
Rule entry index <1~8>:
VLAN ID (Enter for default) <1>:
VLAN port status (Enter for default):

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