Executive Summary Figure 1: “Residential Internet Traffic Breakdown: 2009-2014” Cisco Visual Networking Index 2010
The rapid growth of consumer Internet traffic, mainly due to increased viewing
45,000
of video content via their broadband connections (known as “Over-the-Top” Video or OTT Video), is driving increased stress on service provider networks
and business models. The frequency, duration, and resolution of content requests are increasing, which has a dramatic effect on bandwidth require­
ments. As we enter into the era of Hyperconnectivity, more and more devices
are accessing this rich content anywhere, and at anytime. Demand is accelerat-
Extabytes.per.month

30,000
15,000
ing quickly as more content (for example mainstream movies and TV shows) is 0 becoming available and broader set of Internet-connected devices are able to access it.

The ability to manage the delivery of certain content types and reduce bandwidth requirements over Middle Mile, core, and Internet transit networks can improve profitability for service delivery. Intelligent Content Networking reduces the strain on the network and improves the user experience by serving a broad range of popular, frequently accessed content closer to the subscriber, reducing service delivery and internet transit bandwidth requirements.
Video Takes Over
From peer-to-peer downloads to online gaming, from instant messaging to email, from web to video the amount of internet traffic is growing significantly as seen in Figure 1.
Video content is rapidly changing the composition of consumer internet traffic and is anticipated to make up nearly 60% of requests by 2014. The growth of video will continue as subscribers’ viewing habits change from broadcast to on-demand.at home and on mobile devices.and with higher definition and increased availability of mainstream content, such as movies and television series, being offered via the Internet.
Is your network ready for next wave of Internet traffic?
The prevalence of IP-based video has greatly affected the makeup of the pack­ets traversing a residential internet connection which now includes multimedia content, communications, and data; it is the primary communications link to many residences.

Irrespective of the type, OTT content puts significant stress on the network because it must traverse internet peering connections, core network infrastruc­ture, Middle Mile connections, and finally the access network to be delivered. An individual subscriber’s request for video content, where a user is highly utilizing their connection for a long period of time, has a compound effect on the network as subscribers’ linear-based requests are aggregated, causing network congestion and sub-optimal quality of experience (QoE).
The traditional approach to address bandwidth growth, reduce congestion, and ensure customer satisfaction is via incremental network overlays and increased Internet transit capacity. This is effective to address bandwidth requirements, but it’s not efficient from an economic standpoint as overlays drive additional CAPEX and OPEX. Considering that the average revenue per user (ARPU) will stay static (if not diminish with increased competition), this continued investment fuels a divergence of cost and revenue, leading to less profitable service offerings.

Secondly, as a subscriber’s internet connection usage grows more bandwidth-intensive with OTT and other sources of video, the experience will deteriorate. This is based on time to download and view content as well as system response times for control commands (play, pause, etc.). As expectations continue to become more difficult to meet, more service complaints will be logged and subscriber churn will increase as they move to competitive service offerings.
An alternative content delivery approach, that is beneficial to both service provider and customer, is needed. This approach will need to deliver content effectively and efficiently, provide a high QoE for the end-customer, and limit the service providers’ requirements to augment the network.
Intelligent Content Networking at your service
Intelligent Content Networking is a new approach that distributes frequently-accessed content closer to the subscriber, at the edge of the network, to expedite downloading or streaming and limit the impact of repetitive requests on the entire network. This approach allows for reuse of the locally cached content and provides:
■ Subscriber value: an improved quality of experience. Content is rapidly accessible and system control requests are reacted to quickly based on the content being sourced from a much closer location

■ Network Operator value: with a sizeable reduction in the bandwidth required to serve content over the network and internet transit points, this defers investment in network capex and opex.

How does it work?
Intelligent Content Networking focuses on data sessions established between Service Provider subscribers and Internet content sources, such as Web servers, CDN networks, P2P nodes etc., supporting all of the HTTP services and P2P protocols. As shown in Figure 3, applicable content requests are analyzed and classified on the basis of file type, and are assessed based on download frequency, size of file, last download, etc., to determine their caching potential. Frequently requested.popular.media files are held locally, whereas infrequently or rarely requested files will continue to be sourced from farther back in the network.
Figure 3: The Intelligent Content Networking Process

Why BTI Systems?
BTI Systems understands networks. For over 10 years we’ve been supporting a diverse range of networks within service provider, utility, web and cloud ser­vice operators, and enterprise environments. We have the expertise to deliver mission critical information, communications, and content and are relied upon by over 250 customers globally.
The BTI portfolio has evolved to a best-in-breed packet optical network foundation offering optical service delivery, and a completely integrated Car­rier Ethernet packet services layer. Our focus on enabling content-optimized solutions is a natural evolution complementary to our existing capabilities and ensures our customer’s networks continue to evolve to address new application and service requirements.
WidecastTM , is BTI’s edge-based Intelligent Content Networking solution. It’s a blade server and storage platform focused on network-based content serving and distribution that is tightly integrated with BTI’s packet services layer. Widecast positions key network functionality and content at the fibered network edge.at the head end of the access network or literally at the subscriber’s “front door” to effectively address OTT requests with network efficiency, operational savings, and a high quality of experience.
BTI optimizes Intelligent Content Networking for the edge of the network with our focus on fundamental principles when architecting network solutions: efficient service delivery, low power, compact form factor, and simplified management and operations.
Figure 5: Intelligent Content Networking Solution from BTI Systems
Intelligent Content Networking from BTI. a WIN/WIN Solution
The key to addressing critical network requirements as we enter the era of Hyperconnectivity is to use an innovative approach for content delivery; with Intelligent Content Networking solutions, BTI provides a WIN/WIN for service providers and subscribers.
The service providers’ high-speed internet services must leverage an efficient service delivery infrastructure to address high-bandwidth subscriber requests for content and information. An Intelligent Content Networking approach defers metro network build outs and reduces internet transit costs through a more effective content delivery model, using content caching technology tightly integrated with a packet optical networking solution.
The consumer demand for content is growing at an unprecedented rate and with it is the expectation that content will be readily available, timely in deliv­ery, and easy to control. An Intelligent Content Networking approach provides an “at the front door” delivery model for popular content and ensures sufficient bandwidth to deliver longtail content, and other communications services, over the same Internet pipe effectively; providing an improved quality of experience for the subscriber.

2010-BTI-WP0107.4

Information in this document is subject to change without notice.
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