l
Because the bandwidth occupied by the IPTV service is relatively high, and the bit error
ratio/packet loss ratio is relatively low, the priority of the IPTV service is lower than that
of the VoIP service, but is higher than that of the Internet access service.
l
Because common Internet access services, such as web browsing, require neither a strong
real-time performance nor a low packet loss ratio, the priority of the high-speed Internet
access service is the lowest among the triple play services.
Traffic Management for the Triple Play Services
Traffic management for the triple play includes two modes of rate limitations: stream-based and
user (xDSL port)-based. These two modes are implemented on different layers, and therefore
can be used together. When implementing the user (xDSL port)-based rate limitation, ensure
that the rate limit for the user (xDSL port) must be higher than the aggregated rate limits for all
services of the user.
l
The stream-based rate limitation
The stream-based rate limitation is planned based on services, for example, the bandwidth
is planned based on the IPTV HD program and the IPTV SD program.
l
The user (xDSL port)-based rate limitation
The user (xDSL port)-based rate limitation is planned based on physical information, such
as line quality and number of users per port. The bandwidth for each user is managed in a
unified way: Every users' VoIP, IPTV, and Internet services share one user bandwidth, the
bandwidth is preferentially allocated to the service with higher priority, and one service
burst can hold the total user bandwidth when the other two services carry no traffic.
3.4.1 Configuration Example of the Triple Play (Multi-PVC for
Multiple Services)
This topic describes how to configure the triple play in the multi-PVC for multiple services
mode. The user home gateway is connected to multiple terminals to implement the access of
multiple services such as Internet access service, VoIP service, and IPTV service. Carriers can
adopt this mode when they want to use the existing operation, maintenance, and management
system for the triple play services.
Prerequisites
l
Network devices and lines must be in the normal state.
l
The system is working properly.
l
The home gateway has been configured. Specifically, permanent virtual channels (PVCs)
have been configured on the home gateway for different services.
l
The asymmetric digital subscriber line 2 plus (ADSL2+) line template and alarm template
that need to be bound to ports have been configured.
Service Requirements
ADSL2+ user 1 and ADSL2+ user 2 are connected to the MA5600T/MA5603T/MA5608T to
implement the triple play.
l
The PC user accesses the Internet properly.
SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Commissioning and Configuration Guide
3 Configuring the DSLAM Services
Issue 01 (2014-04-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
365