User`s manual

P-660 Series Support Notes

104

16. Triple Play Application (For P660H & P660HW)

1. What is Triple play?

2. Configuring Triple Play

What is Triple Play?

To increase revenue, more and more Telco/ISPs are integrating value-added services

(such as media-on-demand and VoIP) over existing ADSL connection. All these

services are in addition to Internet access using one simple DSL connection. Thus

comes the age of “Triple Play” (Video, Voice ad Internet Data service) multimedia

services.

In order to meet Telco/ISPs’ requirements for triple play service, ZyXEL DSL routers

provide advanced QoS (Quality of Service) features. ZyXEL triple-play features

support various QoS mechanism for layer 2 and layer 3 applications. By default,

ADSL supports multiple ATM PVCs, thus Telco/ISP can set up one PVC for each

service and assign specific ATM QoS for each PVC. For example, PVC 1 with CBR

for VoIP service, PVC 2 with VBR for Video services and PVC3 with UBR for

Internet data service.

Port-based policy is suitable for both bridge and routing mode between the LAN and

WAN. Specific PVC can be configured in either bridge or routing mode. The Prestige

classifies the incoming traffic from the specified Ethernet port based on the PVC

mapping policy and the forwards the traffic through the specific PVS to the remote

node. To support Port-based PVC mapping, your Prestige (such as the P660H) must

have multiple Ethernet ports. Each Ethernet port has a dedicated Ported-based PVC

mapping policy. You can enable or disable Port-based PVC mapping policy for each

Ethernet port.

Disabled: the Prestige works as a normal router or learning bridge and does not

directly forward the incoming traffic to the specific PVC.

Enabled: Based on the Port-based PVC mapping policy, the Prestige forwards the

incoming traffic from an Ethernet port to the specific PVC (Remote Note), and vice

versa. (Traffic from the specific PVC will be forwarding to the Ethernet port). Each

policy is mapped to a single PVC [one (Ethernet port) mapping to one (PVC)].

Different policy can map to the same PVC [many (Ethernet ports) mappings to one

(PVC)], for example, both Ethernet ports 1 and 2 can map to one PVC.

Configuring Triple play

After the triple play feature is enabled, the following bridge/routing scenario is

possible.