Specifications

F-7
Cisco TV CDS 2.5 ISA Software Configuration Guide
OL-24788-01
Appendix F Engineering Access Level Pages
CDSM or VVIM Setup
Error Repair Client on STB
VOD Error Repair feature requires that the STB have the Cisco Visual Quality Experience Client
(VQE-C) software running on it. The VQE-C is the error-repair client software, which has the following
capabilities:
• Receives RTP video packets
• Detects missing packets
• Requests retransmission of missing packets
• Merges retransmitted packets with original stream
• Collects statistics and counters for monitoring
• Complies with the Cisco RTSP syntax for VOD Error Repair
The VQE-C is a software development kit (SDK) that is available for download through the open-source
program.
Virtual Video Infrastructure
The Virtual Video Infrastructure (VVI) provides management of the Caching Nodes in a central
management configuration or a split-domain management configuration.
When you enable VVI, you need to choose the Management System Role of the CDSM. The
Management System Role has the following options:
• VVI and Stream Manager—Central management of all Vaults, Caching Nodes, and Streamers
• VVI (Vault/Cache) Manager—Management of only the Vaults and Caching Nodes
• Stream Manager—Management of only the Streamers
The Cache Fill Protocol options are for selecting the type of data communication that is used between
Caching Nodes and Streamers. Cache Control Protocol (CCP) is used for communication among the
Vaults, Caching Nodes, and Streamers in an ISA environment with Shared Content Store. For more
information about CCP Streamers and HTTP Streamers, see the “Caching Node Workflow” section on
page 2-10.
Note ISA environments only support CCP, while RTSP environments only support HTTP for VVI.
The split-domain management is made up of the VVI (Vault/Cache) Manager and the Stream Manager.
For the Stream Manager to be able to communicate with the VVI Manager, you need to enter the IP
address of the VVI Manager in the VVI (Vault/Cache) Manager VVIM IP field.
If CCP is used as the cache-fill protocol, you must provide a name for the Stream Manager in the Stream
Domain Name field so that the VVIM can identify it from other Stream Managers. Communication
between the VVI Manager and the Stream Manager is accomplished through database replication when
using CCP.
Note When you configure the CDSM for Virtual Video Infrastructure (VVI), all references to CDSM are
changed to Virtual Video Infrastructure Manager (VVIM) for the Vault and Caching Node manager.