Arris DCX3635, Руководство по установке

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Chapter 1 : Overview
Revision 1 Media Gateway/Media Player 3.0.5 Provisioning and Installation Guide
Copyright ARRIS Enterprises, Inc. 2015. All Rights Reserved. 18
Data Flow
The ARRIS Services Portal processes data originating from various feed partners and external
data sources and the AHS caches it at the headend after the first Media Gateway requests the
data. The AHS supplies the cached data to subsequent Media Gateways in that market.
The ARRIS Media Gateway/Media Player is designed to minimize network impact on headend
resources. The Media Gateways should be provisioned with a minimum downstream DOCSIS
speed of 384 Kbps, and upstream at 128Kbps. The majority of data transactions, such as EPG
download, Context settings, Software Update, and Resource Download, occur between the
hours of 1:00 a.m. and 6:00 a.m. (local time). The number of Media Gateways the AHS can
support depends on the speed at which the AHS is connected to the MSO Network
(1000/100Mbps).
System Management Tools
The ARRIS Services Portal hosts a variety of system tools for installation and remote
management and diagnostics:

MSO Administration Tool — creates users and roles for ARRIS tools

CSR Tool — accesses event logs, account settings, and device system variables. See
Troubleshooting with the CSR Tool for additional information on the CSR Tool.

PPV Tool — sets PPV pricing and timing.

Service Messages Tool — creates and schedules service messages.

Stream Station Tool — identifies which guide data provider stations are streamable and
where they can be streamed (in home, out of home, out of country).

VOD Tool — manages VOD, including both assigning and publishing internal VOD genres to
ARRIS mapped VOD genres.
The Installer Tool is a client-hosted tool that communicates with the ARRIS Services Portal to
access device diagnostics and configure headend and channel map parameters.
ARRIS uses the Software Release Targets Tool to deploy software versions to a warehouse,
market, or device.
Service Diagnostics
The ARRIS Services Portal maintains device usage and diagnostic data. Usage data are
aggregated by market or headend, as the MSO chooses.
DAC/DNCS Control Messaging
ARRIS supports two modes of DAC/DNCS control messaging - out of band (OOB) for Motorola
only and DOCSIS Set-top Gateway (DSG). The primary difference between these modes of
communication is that DSG uses DOCSIS multicast with PIM enabled on the CMTS while the
out of band (OOB) method uses the standard legacy method to reach the media gateway.
DAC/DNCS control messaging provides the Media Gateway with:

Virtual channel table information (channel map)