Specifications

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Cisco TV CDS 2.5 ISA Software Configuration Guide
OL-24788-01
Chapter 2 Network Design
Vault Virtualization
With FTP pull, the original content is kept on an FTP server (catcher), for a period of time and
mechanisms are in place to restart ingests until they have successfully completed.
With FTP push, only a window of data is buffered by a device that grooms the live (broadcast) feed and
pushes the data to the Vault.
With live capture over UDP, the Vault captures the live multicast feed directly.
Vault Virtualization
Vault Virtualization provides the following three types of configuration:
• ISA Regionalization
• Shared Content Store
• Virtual Content Store
Note Virtual Content Store provides enhanced features to Shared Content Store.
ISA Regionalization
The ISA Regionalization feature is a combination of the Virtual Video Infrastructure (VVI) and legacy
Content Delivery System (CDS). This feature provides the ability to centrally store content on Vaults
located in a centralized storage facility and allow remote sites to have a record of inventory of this
content and access it by way of the Caching Nodes or directly on the central Vaults. The remote sites
still operate as independent entities with their own local Vault Group, local Content Store, and local
Streamers; managed by their own CDSMs and possibly accessing their own local BMS and AMS. The
Streamers at each remote site can stream both locally stored content and centrally stored content.
The ISA Regionalization feature allows the use of a centralized storage facility containing both Vaults
and Caching Nodes in a Virtual Video Infrastructure (VVI), while maintaining a localized or remote
CDS at each headend.
For information on configuring ISA Regionalization, see the “ISA Regionalization Configuration
Workflow” section on page 3-9.
Centralized Storage
The Virtual Video Infrastructure Manager (VVIM) manages the Vaults and Caching Nodes allocated in
the centralized domain. The centralized domain can be distributed across multiple geographic locations;
for example, the Vaults could be located in one location and the Caching Nodes could be located in
another. The VVIM typically resides in one of these locations.
Each CDS has a virtual view of the VOD content stored on the central Vaults. The centralized content is
ingested once, the first time it is requested; any subsequent ingest requests for that same content
increments a reference counter.