Cisco Headend Digital Broadband Delivery System 用户指南
About This Guide
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About This Guide
Introduction
The growth in available services to the service provider has far outpaced the
increases in access network bandwidth due to upgrades and rebuilds. This same
expansion of available services has also created a situation in which, at any given
time and in any given service group, most services are not being viewed. Thus, edge
device and access network bandwidth are wasted when many of those services are
continuously broadcast to subscribers that are not watching them. Switched Digital
Video (SDV) is a technique that recaptures such wasted access network bandwidth
by delivering selected services only where and when users are actively requesting
service. This technique is performed through program switching, which is also
known as SDV.
increases in access network bandwidth due to upgrades and rebuilds. This same
expansion of available services has also created a situation in which, at any given
time and in any given service group, most services are not being viewed. Thus, edge
device and access network bandwidth are wasted when many of those services are
continuously broadcast to subscribers that are not watching them. Switched Digital
Video (SDV) is a technique that recaptures such wasted access network bandwidth
by delivering selected services only where and when users are actively requesting
service. This technique is performed through program switching, which is also
known as SDV.
SDV is configured into the SDV manager. Therefore, to provision SDV services on
the Digital Network Control System (DNCS), parameters must be configured into
the SDV manager on behalf of the SDV server.
the Digital Network Control System (DNCS), parameters must be configured into
the SDV manager on behalf of the SDV server.
Purpose
This document provides instructions for setting up and configuring SDV services on
the DNCS.
the DNCS.
Scope
The procedures covered in this document only apply to Digital Broadband Delivery
System (DBDS) networks with SDV and operating with System Releases (SRs) SR
2.8/3.8/4.3. These procedures describe how to provision SDV services on the DNCS,
as well as how to configure the Service Application Manager (SAM) and other
features so that the Digital Home Communications Terminals (DHCTs) can display
SDV services.
System (DBDS) networks with SDV and operating with System Releases (SRs) SR
2.8/3.8/4.3. These procedures describe how to provision SDV services on the DNCS,
as well as how to configure the Service Application Manager (SAM) and other
features so that the Digital Home Communications Terminals (DHCTs) can display
SDV services.
Important: This document does not describe how to stage SDV servers. For
instructions on installing SDV servers, refer to Series D9500 Switched Digital Video
Servers Installation and Operation Guide.
instructions on installing SDV servers, refer to Series D9500 Switched Digital Video
Servers Installation and Operation Guide.
Audience
This document is written for DBDS system operators and engineers, DNCS
operators and engineers, field engineers, and Cisco Services engineers.
operators and engineers, field engineers, and Cisco Services engineers.