Cisco Cisco Content Delivery Engine 110 Scheda Tecnica
Data Sheet
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the network. Furthermore, the system automatically discovers the addition or removal of a Cisco
CDE and reconfigures itself without service disruption or manual intervention, vastly simplifying
maintenance and upgrade operations.
A network populated with Cisco CDEs becomes a platform upon which new services and
applications can be layered over time and deployed much more quickly than was possible in the
past—unleashing the power of IP networking technology by creating a video infrastructure capable
of delivering nonstop availability, unprecedented scalability, and low total cost of ownership.
Taking advantage of the extensible architecture of the Cisco CDS, operators can deploy on-
demand video services today with the knowledge that they can expand their services to support
real-time applications and multiple forms of rich-media content delivered to many types of devices.
A summary of the features and benefits of the Cisco Content Delivery Engines appear in Table 2.
Table 2.
Cisco CDE Features and Benefits
Feature
Benefit
Facilitate design and implementation of a converged content delivery architecture for any type of
video user interface.
video user interface.
Accelerate deployment of new services by enabling new applications on the existing Cisco CDE
network infrastructure with only a software upgrade.
network infrastructure with only a software upgrade.
Multifunction capabilities
Simplify service provider’s personnel training and equipment sparing strategies.
Resource pooling and load balancing enable Cisco CDEs to be networked into logic server arrays
that can provide virtually unlimited amounts of content storage (vault array) and streaming
capacity (streamer array) throughout the network.
that can provide virtually unlimited amounts of content storage (vault array) and streaming
capacity (streamer array) throughout the network.
Additional streams or storage capacity can be added to the array without outages or service
interruption. The Cisco CDS detects when new CDEs are added or removed from the logic array
and optimally load balances the entire resource pool.
interruption. The Cisco CDS detects when new CDEs are added or removed from the logic array
and optimally load balances the entire resource pool.
Logic server arrays
Independent scaling of content library size and stream count optimizes CapEx.
Multi-topology support
The network-based architecture of the Cisco CDS supports a variety of network topologies
including centralized, distributed, and hybrid approaches. This gives service providers the
flexibility to adopt the appropriate deployment strategy for each site depending on expected
demand and network connectivity considerations.
including centralized, distributed, and hybrid approaches. This gives service providers the
flexibility to adopt the appropriate deployment strategy for each site depending on expected
demand and network connectivity considerations.
Unlike traditional video delivery systems, the Cisco CDS does not require operators to predict
which content will be requested the most and when. Cisco’s Intelligent Caching algorithm is
constantly running across all CDEs, making traffic-based decisions on where each asset should
be cached. This automatically optimizes content distribution based on ever-changing content
popularity.
which content will be requested the most and when. Cisco’s Intelligent Caching algorithm is
constantly running across all CDEs, making traffic-based decisions on where each asset should
be cached. This automatically optimizes content distribution based on ever-changing content
popularity.
The unique Intelligent Caching algorithm helps ensure that any content not available on the local
streamer cache when requested will be streamed to any subscriber in the network within 300 ms
of a request and made available locally for future requests (cache fill).
streamer cache when requested will be streamed to any subscriber in the network within 300 ms
of a request and made available locally for future requests (cache fill).
Intelligent caching
This approach allows users to perceive all content as local while at the same time reducing
metropolitan bandwidth consumption by 95 percent or more (typically over 95 percent of the
content requested is made available locally by the Intelligent Caching algorithm).
metropolitan bandwidth consumption by 95 percent or more (typically over 95 percent of the
content requested is made available locally by the Intelligent Caching algorithm).
Unique failover features help ensure that hardware failures don’t bring down the network,
eliminating service outages.
eliminating service outages.
The content library is resiliently stored on vault arrays with fast mirroring and hitless failover.
Non-stop service
availability
availability
Cisco CDEs in streamer arrays constantly interact to provide enhanced resiliency.
High-performance
streaming
streaming
Low-level drivers are optimized for industry-leading streaming performance, helping the service
provider achieve the lowest possible CapEx.
provider achieve the lowest possible CapEx.
Industry-leading ingest
capabilities
capabilities
With the ability to simultaneously ingest 200 standard-definition streams per server, Cisco CDEs
offers a unique platform to enable real-time services and time-shifting applications.
offers a unique platform to enable real-time services and time-shifting applications.
Optimized storage cost
structure
structure
The Cisco CDS minimizes CapEx by storing content libraries on inexpensive SATA devices and
automatically caching the most popular content in DRAM and on fast SAS disks in the streaming
devices.
automatically caching the most popular content in DRAM and on fast SAS disks in the streaming
devices.
Management is simple, with a single, easy-to-use GUI to configure, monitor, and troubleshoot the
Cisco CDEs and applications throughout the entire system.
Cisco CDEs and applications throughout the entire system.
Centralized management
Management simplicity contributes to reduction in OpEx.