Media Flow Controller Smoothflow - Juniper MEDIA FLOW CONTROLLER 2.0.4 - ADMINISTRATOR S GUIDE AND CLI Administrator's Manual

Media Flow Controller Administrator's Guide
a. The AFR for the request is based on the URL along with other query parameters and
Media Flow Controller can determine that this AFR cannot be serviced given the
existing bandwidth being served on that port.
b. Media Flow Controller can refuse to create the delivery task if it is out of processing
resources.
c. Media Flow Controller can return an error if it is out of memory resources.
d. Media Flow Controller can return an error if meeting this request would exceed the
capacity of the internal caches or origin libraries.
Logging and statistics for which Media Flow Controller module refused session admission are
provided in the errorlog.

Media Flow Controller SmoothFlow

SmoothFlow™ refers to the Quality of Experience (QoE) feature that Juniper Networks Media
Flow Controller can provide to viewers for uninterrupted video viewing.
Last-mile bandwidth fluctuations can cause buffering, or long pauses. Juniper Networks
SmoothFlow technology provides viewers a TV-like video viewing experience irrespective of
last-mile bandwidth fluctuations, by dynamically detecting available bandwidth and seamlessly
switching the bit-rate of a video being progressively downloaded over HTTP.
Viewers with high bandwidth connections receive videos at higher quality resolutions while
viewers with lower bandwidth connections receive videos encoded at bit-rates matching their
available bandwidth. Media Flow Controller always sends video data at the bit-rate that is
appropriate to the available bandwidth between the server and client at any point of time.
Media Flow Controller SmoothFlow receives client-side signals from the client player providing
information about real-time resource utilization (for example, if the viewer starts a CPU-
intensive application while watching a video).
In addition to SmoothFlow, such signals enable Media Flow Controller to allow viewers to
control their media playback experience using flow commands such as fast forward, rewind,
frame step, pause, and so forth, on a video that is currently being downloaded.
Media Flow Controller server-side intelligence, coupled with player feedback, allows Juniper
Networks Media Flow Controller to deliver a really high quality of viewing experience tailored
specifically to each viewer.
"SmoothFlow Deployment,"
Figure 4, illustrates a SmoothFlow deployment. See
for more information.
Media Flow Controller Overview
Media Flow Controller SmoothFlow
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