Specifications

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Cisco TV CDS 2.5 ISA Software Configuration Guide
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Chapter 2 Network Design
TV CDS and VVI Topologies
Figure 2-5 illustrates the decentralized topology with Caching Nodes.
Figure 2-5 Decentralized Topology with Caching Nodes
Hybrid Topology
In a hybrid topology, the Vault servers and backup Streamer servers are located at the headend, with the
active Streamers at a remote hub site. If the remote hub site goes down, the Streamers at the headend
take over. A hybrid topology blends the advantages of centralized and decentralized topologies that is
based on needs of the system implemented. Figure 2-6 illustrates the hybrid topology.
Figure 2-6 Hybrid Topology
GE Switch
GE Switch
Streamers
Headend - Tier One
Vaults
GE QAMs
HFC
252115
Storage Content
Tier Two
Remote Hub 1
Remote Hub 2
Caching Nodes
GE Switch
Tier Two
Caching Nodes
GE Switch
GE Switch
Streamers
GE QAMs
HFC
203091
Headend
Storage
Content
Vaults
GE QAMs
Remote Hub
Streamers
GE QAMs
Streamers
HFC
Switch
Network
Switch
Network
Switch
Network