Specifications

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Cisco TV CDS 2.5 ISA Software Configuration Guide
OL-24788-01
Chapter 2 Network Design
Vault Virtualization
For RTA content, the process is same as it has always been for the CDS. The local Content Store
processes the provision call (provisionForPush for RTA) and directs the local Vaults to perform the
ingest of the content.
Remote Streaming
Local streaming is accomplished by way of the Cache Control Protocol (CCP) locate capability. Each
remote site is configured to communicate to a specific set of storage devices which could include local
Vaults, central Vaults, and Caching Nodes. The locate feature broadcasts a request for a specific content,
and the system performs a cost analysis to determine which storage device can best provide service. For
VOD content, if the content is not already cached on the local Streamers, it is acquired from either the
central Vaults or Caching Nodes. For RTA content, if the content is not cached on the Streamers, it is
acquired from the local Vaults. However, knowledge of the content type is not required as the locate
capability is able to determine its location.
Shared Content Store
Shared Content Storage, also known as Shared Content Store (SCS), works with a single, centralized
AMS and catcher, through which all initiation for content ingest and content deletion is sent. The SCS
handles ingest and deletion requests from multiple backoffices by way of the central AMS. The scenario
of backoffices independently ingesting and deleting content through their local AMS is not supported.
Note The Content Storage feature requires the Virtual Video Infrastructure feature with Caching Nodes.
Figure 2-8 shows a high-level view of the SCS and a single, centralized AMS for multiple video hub
offices (VHOs). A VHO is a local deployment that includes the video backoffice, Streamers, application
servers, QAM devices, and other headend equipment.
Figure 2-8 Shared Content Store For Multiple Video Headends
Shared
Content Store
CServer
Asset
Management
System
Legend
Naming
Service
Streamer Array
Streamer Array
Vault Array with Shared
Content Store
DNS Access
Video
Backoffice
Naming
Service
Video
Backoffice
CServer
Stream
Service
Stream
Service
CServer
203530
Shared DNS
Server
Data / Video Plane
FTP
FTP
MPEG-2 TS
MPEG-2 TS
MPEG-2 TS
MPEG-2 TS
VHO 2
VHO 1
Catcher