Zhone 4929 DSLAM User Manual

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4929 DSLAM Installation and User’s Guide

4929-A2-ZN20-30

To configure the backbone VLAN ID, flood type, and Ethertype:

1 Click on the Bkbone VLAN Id, Flood, Ethertype tab. The Bkbone VLAN 

Id, Flood, Ethertype screen appears.

2 Select or enter the following parameters:  

Backbone VLAN Id 

Configuration

Specify the Backbone VLAN ID. Used in 

conjunction with standard VLAN tags, the single 

Backbone VLAN tag will become the primary 

identifier, allowing a router with backbone 

capabilities to make smarter decisions in 

directing unlearned traffic. This helps prevent 

traffic from being flooded to incorrect networks. 

Once packets have been directed to the correct 

network by the Backbone VLAN tag, standard 

VLAN tags will then direct the packets to the 

appropriate ports. The default is zero, meaning 

the port is not configured to utilize the 

Backbone-VLAN function.

A Backbone-VLAN tag cannot be used 

independently; stardard VLAN tags must be set. 

Additionally, the DSLAM uplink connection 

must run through a router in order for a 

Backbone VLAN tag to function.