D-Link DWS/DXS-3200 manual Configuring Multicast VLANs

DXS/DWS 3200 Series User Guide

Configuring Multicast VLANs

Network Manager can enhance Multicast TV services by catapulting networking into the next generation of IT services by combining cable television, VoIP, and high speed inter-net connections via a single cable. Triple Play service ensure that Layer 2 isolation between subscribers remains intact.

Service provider packets sent to the subscriber arrive from the following VLAN types:

•Subscriber VLANs

•Multicast TV VLANs

Each subscriber on a network maintains a Customer Premise Equipment Multi-Connect (CPE MUX) box. The MUX boxes directs network traffic from uplink ports to MUX access ports. MUX access ports are based on VLAN tags located in packet headers. Service provider’s packets are tagged twice. Each packet has an internal tag and an external tag. The external tag indicates if the packet arrived from a Multicast TV VLAN or from a subscriber’s VLAN. The internal tag indicates the port within the VLAN to which the packet is addressed.

The VLAN tag identifies:

•The media service type, including:

–Internet

–TV

–Phone

•The service provider

This section includes the following topics:

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