What is Transparent Caching?

Watch Video: Transparent Caching Overview

A transparent cache identifies data that's frequently sent in network traffic, caches it locally, and delivers it from the network edge when requested – without requiring any change of behavior or business logic by content providers, CDNs, or subscribers. Transparent caching reduces network bandwidth consumption throughout the network and improves performance to the subscribers.

Today, video is the most bandwidth-consuming content in the network, responsible for over 60% of overall traffic in most networks, and projected to grow to over 90% by 2015. With over 80% of bandwidth being consumed by only 10% of titles, transparent caching can dramatically reduce the volume of repetitive traffic, resulting in substantial CAPEX and OPEX savings for service providers.

The challenge with caching video is doing this transparently and efficiently to ensure optimal subscriber experience, preserve content provider’s fidelity, and reduce the strain of video traffic on the network.

Problems in Networks Without Transparent Caching

Transparent Caching and Video Delivery Solutions from Qwilt

Costly Transit

Even when a high percentage of subscribers are watching the same titles, each video has to be delivered directly (over-the-top) from the content provider every time it is requested. The duplicity exponentially increases the total amount of bandwidth, and results in high transit costs for operators.

Network Congestion

Each over-the-top (OTT) video has to traverse the entire network to get to the subscriber. The increased traffic load during peak video consumption hours causes network congestion, which impacts performance and QoS for all services, including video and other latency-sensitive applications.

Costly Infrastructure

As video consumption continues to grow and shift from short single-file clips like Youtube, towards full-feature HD titles like Netflix, service providers are forced to heavily invest into costly network infrastructure to continually expand capacity needed to meet the growing bandwidth demand.

Subpar QoE

Long transit from content sites and network congestion during peak consumption periods result in slower downloads, delays in response, lower bit rates, and subpar experiences for consumers. In a highly competitive industry, consumer QoE is key to subscriber retention.

Benefits of Transparent Caching

Transparent Caching and Video Delivery Solutions from Qwilt

Reduced Bandwidth Costs

Transparent caching minimizes the number of times video titles are delivered from the content provider sites, which substantially reduces the total volume of data crossing the transit links. Popular, frequently viewed videos are identified, stored, and delivered to subscribers from within the network.

Robust Network

As the overall volume of OTT video traffic traversing the service provider network decreases, network conditions improve dramatically even during peak consumption periods. This improves performance for all other non-cacheable network traffic, applications, and services, and non-cached video content.

Infrastructure Savings

Operators can achieve substantial CAPEX savings by drastically reducing the amount of infrastructure investment needed to support the rapid growth in bandwidth demand. By leveraging transparent caching for video delivery, service providers can prepare their networks for the future of online video.

Optimal QoE

Operators can ensure a quality, immersive experience every time by delivering video from close proximity to the subscriber. With a transparent caching solution, high quality video is always delivered in the original content provider fidelity, without the pesky disruptions, lengthy download times, and control response delays.

How It Works

Qwilt's innovative approach to transparent caching optimizes carrier networks and ensures the best subscriber QoE - every time. Watch this video to find out how it works »

Legacy Caches - Not What They Seem

Legacy caching solutions repurposed to deliver video are bulky, archaic systems comprised of multiple generic point products. The “bolted-together” approach creates a number of deployment-related issues for carriers including extensive network reconfigurations such as complex policy based routing (PBR) updates, decreased video delivery performance, additional costly equipment purchases, as well as a substantial amount of rack space and power needed to accommodate multiple point product devices. Once deployed, legacy systems introduced numerous points of failure into the infrastructure due to the number of inline devices dispersed throughout the network. Management of disparate components requires additional time, training, and resources from the network operations staff.


Unified Transparent Caching, Video Delivery, and Analytics Platform

Legacy Caches

"Bolted together" disparate
point products - bulky, costly,
and complex.

Qwilt vs LegacyTransparent Caching Solutions

When using repurposed or legacy caching systems, network operators are forced to replicate large segments of infrastructure to serve all types of online video content from the network edge. This means managing many devices, with only a fragmented view of video's impact. Deploying legacy transparent caching systems at the edge of the network is extremely costly and cumbersome due to the number of required point product devices, making them limited to a data-center deployment, unsuitable for the carrier-grade network environment.

Learn more about transparent caching network architecture »

The Real Scoop on Legacy Caches

Next-generation transparent caching solutions feature a 5x performance advantage over their legacy predecessors. Watch this video to find out why »

Next Generation of Transparent Caching: Video Fabric Controller

With the dramatic and constant increase of video traffic in carrier networks, operators need a compact, integrated, carrier-grade platform to effectively cache and deliver video at the network edge in close proximity to the subscriber.

QwOS Transparent Caching and Video Delivery Platform

Qwilt’s unified, autonomous approach is scalable, cost-effective, and simple to deploy and manage in the most complex and demanding network environments. Our purpose-built, carrier-grade platform is engineered specifically for delivering large volumes of video traffic from the network edge, with at least 5x better performance on the same footprint than any video caching solution in the industry.

Qwilt’s high-availability, carrier-grade transparent caching platform seamlessly inserts into any network infrastructure, is simple to manage, and is the only solution in the industry that is engineered specifically for the rigorous demands of video delivery in a carrier network environment. Qwilt enables carriers to meet the growing online video bandwidth demand while maintaining an agile network infrastructure, achieve significant CAPEX and OPEX savings, and pursue new revenue-generating streams from online video delivery.

5 Core Principles of QwOS ™ »

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