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Network Equipment for Media Streaming Company

I am upgrading a media streaming company's network equipment. The network is bottlenecking and I want to build a solution that will be scalable and allow video to be streamed without any hiccups.

There is a fiber connection and the media is stored on Storagedna along with being accessed on a NAS device (Dobro). Is there better equipment I can use? What would be a better solution?

Thanks
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hoodun12
Asked:
hoodun12
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RafaelCommented:
tough call without knowing more about the network.
How many users?
What types of servers ?
What is the core switch?
What type of switches are on the network now ?
Are their firewalls in place ?
Where are the bottle necks ?
Are the devices set to auto or hard coded to 1000GB?
Is anything trunked ?

These are some things that are needed to help.
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hoodun12Author Commented:
"where are the bottlenecks"

-are there tools to use for me to figure this out? what do you recommend I use?
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RafaelCommented:
Bottle necks are where one part of the network is faster than another and varies based on variables.   A good FREE tool is IP Perf.
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pgm554Commented:
Check out SolarWinds.

http://www.lovemytool.com/blog/2012/10/keep-users-happy-by-avoiding-network-traffic-bottlenecks-by-brad-hale.html

Iperf is a bit too rudimentary for a complex analysis of a large scale network.
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Mohammed KhawajaManager - Infrastructure:  Information TechnologyCommented:
I believe you need to validate if the network is the culprit or the disk storage IO.  I believe you need to look at performing tests while connected to the same switch as the storage devices under normal usage to see if it is network or storage.  wouldn't be surprised if you need to purchase a SAN/NAS with fast controllers, decent amount of cache and lots of spindles.
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avcontrolCommented:
If you know, that upgrading hardware fixing one particular bottleneck will be all you need, than monitoring tools will help.
If you need to redesign and upgrade network to serve new demand, then it is totally different story, can be very expensive and complex.
Posting diagram would help advise.
Do you need start calculating bandwidth use , capacity planning, and base on that choose hardware/design.
Uncompressed  video will take about 20MB per single flow, high def video 600Kbps, website like youtube HD video streaming is H.264 at a video bit rate of at least 2.5 Mbps.
http://www.streaminglearningcenter.com/articles/streaming-101-the-basics---codecs-bandwidth-data-rate-and-resolution.html
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