SOLUTION BRIEF
ORIGIN ACCELERATION
Unblock performance bottlenecks in your origin
servers, NAS or network
WhY ACCELERATE YOUR ORIGIN?
Origin systems are used to process and store copies of an operator’s entire catalogue of TV content. Most of this content is
usually delivered to the viewer by a CDN. This might be a public
CDN service or, if the operator wishes to control the quality of
the delivery and benefit from economies of scale, they will more
likely build out their own purpose-built TV CDN.
THE SOURCE OF THE BOTTLENECKS
All content that is not already cached in the CDN needs to be read-out from the
origin system. For large amounts of viewers and content, even with a highly efficient
CDN with a high cache-hit ratio, this can put a great deal of strain of the origin system, and it can reach limits in its capacity. This can be due to one of three issues:
1. The origin servers may be operating at their maximum performance
2. The NAS may have sufficient storage capacity, but the servers may have
insufficient read-out capacity to meet the demands of the viewers’ requests for uncached content
3. The network connection to the origin location may be congested
HOW TO ACCELERATE YOUR ORIGIN SYSTEM
Each of these problems can be solved by deploying one or more high performance
TV servers between the origin and the CDN.
The TV servers provide an extra layer of caching for the most highly demanded
content that is being served by the origin system – content not held within the
CDN. The cached content is managed using an algorithm that automatically discards the least-recently viewed content in favor of retaining more popular content.
So now the majority of content is read-out from these servers rather than the congested origin system.
A single Edgeware TV Server can read-out TV content at either 20Gbps or 80Gbps,
depending on model (4020 or 4080 TV Server). Content can be read-out on-the-fly
as soon as it is available in the NAS, without having to wait for the whole file to be
downloaded into the TV Server’s memory, eliminating latency. The servers can also
support a mix of RTSP and HTTP services. Multiple servers can be used to build
highly scalable and resilient origin systems.
To solve congestion caused by insufficient network bandwidth, these TV servers
can be placed in a different location to the origin system – either somewhere with
greater connectivity, or distributed across several locations to spread network demand across multiple sites.
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EDGEWARE SOLUTION GUIDE: ORIGIN ACCELERATION
Bottlenecks
unblocked from
existing origin
system
ORIGIN
ORIGIN ACCELERATION
LAYER
‘Heavy lifting’ done
by TV Servers
Existing TV CDNs
can now read-out
content from the
origin acceleration
layer
CDNs
BENEFITS OF ORIGIN ACCELERATION
Using Edgeware’s origin acceleration solution brings a range of benefits,
ORIGIN ACCELERATION
CASE STUDY:
including:
Remove bottlenecks in the performance of your existing origin system
A large cable company in the Americas
was experiencing TCP retransmissions due
to congestion in its origin system, which
was affecting its viewers’ ability to access
content. It was faced with the expensive
and disruptive option of upgrading its
origin infrastructure. Instead it deployed 4
Edgeware TV Servers in front of its origin to
act as HTTP caches and to stream its RTSP
traffic, solving its problem easily and at
relatively low cost.
Extend the value of the existing investments in network, NAS and origin
servers
Minimize service disruption
Scale to huge volumes of content and viewers
Support any mix of RTSP and HTTP services
Deterministic low latency performance, unaffected by traffic mix
Low power consumption, with less than 100W per server, and little
space required at only 1RU per server
The origin acceleration TV servers can evolve into a full TV CDN,
streaming content themselves, to further scale your delivery system and add
greater control to the quality of the TV viewing experience
www.edgeware.tv
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EDGEWARE SOLUTION GUIDE: ORIGIN ACCELERATION