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Play Success is the most important quality of experience
indicator and is simply the number of people who were able
to successfully play the video. During a live event, a low Play
Success percentage is the most basic indication that something
is going wrong and warrants further troubleshooting. For
example, perhaps there was a large-scale net work outage
preventing the video from being delivered to the viewers.
This information allows the network team to see quantifiable
evidence that a problem has occurred and provides them with
the data needed to make an exact diagnosis.
The Start-Up Time indicator is a measure of how long
it took a viewer’s stream to begin playing. For example,
a 45 second start-up time may indicate an issue with an
organization’s video prioritization rules. A common problem
is a subnet attempting to play a Multicast stream on a network
that is not enabled for this method of delivery. This may result
in a slow start-up time because of the required failover to a
more appropriate format. This type of data is most useful for
optimizing a video distribution strategy.
This indicator shows the amount of video buffering and
is expressed both on a timeline and as a count of Buffers By
User. Spikes in buffering are generally seen when the event
starts — which is to be expected. However, a jump in buffers
in the middle of the event may indicate an issue, which would
need to be further explored.
For instance, there may be a subnet that lacks sufficient
bandwidth to deliver the video to all the viewers requesting
it — which is resulting in buffering to a larger than normal
portion of users. With Buffers by User, you will generally see
the largest number of users with one initial buffer at the start
of the event. However, if individual users are experiencing a
large number of buffers, it could be net work or device related.
For example, if a webcast producer receives a report of
viewer buffering, he can consult the VBI QoS interface for
answers and reach out directly to the viewer, if necessary.
VBI will show exactly how many users are currently
buffering, what offices they are in and what video formats
they are watching.
This indicator shows how many times users automatically
failover from one video source to another. Similar to buffers,
this is expressed both as a timeline and as a count of “Failovers
VIDEO BUSINESS INTELLIGENCE IN ACTION
A Media Platform customer identified a video strategy
that used a combination of IP Multicast in some locations,
MediaPlatform’s SmartEdge eCDN servers in others, and
Adobe peer-to-peer sharing as a third approach. In most
office locations the design was either two or all three of
those options — with failover used when one stream type
wasn’t available to the user.
A primary stream format was identified for each location
with various failover paths. If an office supported IP
multicast, then the first stream presented to the user would
be an IP multicast stream, the second would be a SmartEdge
served HDS split stream with the final layer of failover being
peer-to-peer. The customer deployed the MediaPlatform
solution prior to the release of the VBI product and no issues
were reported during their initial events.
However, when VBI was launched, and results were
reviewed, webcast administrators were surprised to see
that none of the viewers in one of the largest corporate
offices received the IP multicast streams. When the IT staff
investigated, it was discovered that IP multicast had broken
two months prior.
Webcast viewers were unaware of the issue because
failover from IP multicast to the HDS splitstream was
transparent to the user BU T if a Town Hall had been run
on the system, the system was not architected to handle a
100% failure of IP multicast and the stream splitting servers
would have been over whelmed. This would have impacted
thousands of users — and resulted in a failed webcast in an
GETTING STARTED WITH
VIDEO BUSINESS INTELLIGENCE
To learn more about how your organization can ensure
successful CEO Town Halls and All-Hands events with
Video Business Intelligence, contact MediaPlatform today
MediaPlatform ( mediaplatform.com) is the leading enterprise You Tube
enabling large-scale live webcasting and on-demand video for CEO Town
Halls, e-learning, and collaboration. MediaPlatform helps organizations
that include Abbott Laboratories, Ericsson, EY, NEC and Sprint leverage
the power of video to improve employee engagement, enhance training
and boost productivity.
MediaPlatform is a Leader in the Gartner Magic Quadrant for Enterprise
Video Content Management ( www.mediaplatform.com/gartner).