Bringing the power
of virtualization to
cable service operators
Casa Systems, Kyrio, and Intel show that
virtualization decreases rack space and power
and increases throughput—while cutting TCO
Today’s cable service providers face no shortage of opportunities and challenges as
they compete in a rapidly changing marketplace distinguished by high-bandwidth
growth and a ...race for faster speeds. At the same time, new markets for low-latency
applications, such as augmented/virtual reality, 5G small-cell backhaul, and mission-
critical IoT, loom on the horizon.
Virtualization and the disaggregation of network functions provide key tools to
allow service providers to face their challenges and seize opportunities. Distributed
access allows for an order of magnitude increase in capacity while freeing up space
and reducing power. Virtualization delivers the flexibility to respond rapidly to new
revenue opportunities along with the high potential for significant cost savings.
As more cable service providers balance opportunities and challenges, many are
rethinking how they operate so that they can balance change and expenses. A solid
total cost of ownership (TCO) analysis for the architecture changes and transition
steps, as presented in this white paper, is needed.
Why move to virtualization
The evolution to the virtualization of network functions and the development of
software-defined infrastructure in general represents a paradigm shift in the industry,
with virtualization likely being new to many. It moves companies from fixed-function
appliances with fixed capacity to virtual network functions (VNF) written in software
and running on commercial off-the-shelf (COTS) servers and switches.
Among the most sought-after goals is a lower TCO of the
network elements. That means bringing down the cost
per bit over the network while giving service providers
the enhanced flexibility they need to respond to market
demands. It also means preserving, as much as possible,
existing services and technology, thereby avoiding costly
rip and replace scenarios.
By exchanging a hardware-based cadence for one driven by
software, service providers can greatly accelerate the speed
of innovation. Virtualization is also the best way to conserve
space and power while growing the access network.
Some purpose-built infrastructure will always be needed,
but it is becoming clear that important benefits can be
achieved when progressively adding more network function
virtualization (NFV) and software-defined networking
(SDN)–based deployments over time. This evolution becomes
an important tool for driving network scale and agility.
The specific hub site chosen was large, but as can be seen
by the distribution of rack space shown below, it was a
typical CCAP installation. As a result, the TCO analysis and
conclusions are applicable for a wide range of deployments
and cable service providers.
Current Rack Space Distribution
CCAP VOD/SDV Optical TX/RX
A Casa Systems, Kyrio, and
In 2017, in the face of these escalating demands, a client
approached Casa Systems with a question. As a cable
service provider with millions of subscribers, the company
wanted to know this: As we increase network throughput,
what will the effect be on our hubs if we grow in a traditional
Read the full White paper.