Chapter 24: IP Video
STANDARD Revision 1.0 C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved. 753
Video CPE
The Video CPE function consists of the following subsystems:
Media player/PC portal/mobile portal — These are sometimes called the IP Video clients and include the application
software that is implemented on the hardware platforms. They participate in authentication and authorization activities
and appropriate encryption requests.
Media (IP Video) gateway — Provides the interface between the Hybrid Fiber Coaxial (HFC) network and home network to
act as the primary interface for IP Video streams entering the home.
Video Management
The Video Management functions reside in the headend and involve the following subsystems:
Content acquisition — This acts as a "card catalog" for the local video library.
Digital Rights Management (DRM) — This is responsible for protecting IP Video content from theft using various forms of
encryption. DRM registers and authenticates clients, tracking and distributing license certificates to new subscribers. It
manages the scope of distribution of the video content.
Session manager — Ensures that all the components in the IP Video architecture remain coordinated with one another.
Video Access
The Video Access function consists of the following subsystems:
Transcoder — Resides in the headend and pre-processes IP Video content streams as they arrive from satellite, Over-the-
Air antennae, or Over-the-Top IP Video providers who partner with the MSO.
Video server — Provides the long-term and short-term storage of video content that is available to subscribers.
C4/c CMTS — Acts as the interface between the headend and the HFC network. It intelligently manages the flow of IP
video streams onto the dedicated IP Video DOCSIS channels of the HFC plant. It also provides routing functions into and
out of the "last mile" connection on the internet.
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