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How do I determine recommended bandwidth for internet surfing web broswing requirements

We have a rental space that will be having 35 users coming in to learn basiscs about searching the internet.  An outside provider is bringing in the PCs.  we need to provide a sutable internet connection.  any way to know what recommeded bandwidth we should be getting?  Sure, faster is better, but what is not fast enough / small enough bandwidth
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babaganoosh
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babaganoosh
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SStoryCommented:
Dialup is 56 kilo bits, that about 5KB per second

On business DSL you can get 3 mega bits that about 280-300KB per second if my math is right.

300/35=8.57KB/sec (slightly better than dialup).   That is if all 35 users are continually using it all of the time and/or at the same time.  

The question is How much bandwidth do you want per user?  Find that out and multiply by 35 if they will all be using it at the same time.

We have far more than 35 users on a 3Mb/s business DSL, but not everyone is hitting it simultaneously all of the time.  We could use a little more at times, but it is sufficient.

HTH,

Shane
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babaganooshAuthor Commented:
this is a class where the teacher will direct them to do a task on the web - search, etc...  how much bandwidth do we want per user?!  That's the question I guess.  How do you quantify a 'nice' response time to web page requests (inder 1 - 2 seconds?).  and yeah, in most cases not every one would be accessing the web at the same time.  in this case though, all ./ most would.  but it's 35 so it (should be?) a more manageable number for the bandwidth?
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SStoryCommented:
Well 6Mb/sec would be great I would think.
3Mb/sec might do you just fine if they are hitting the internet in staggered manner.  If they are downloading huge files, then that would require more speed.  

NO ONE can tell you how much to get until you determine what size traffic on average will be traveling over the lines (just simple web pages)?  Huge files?  

I could tell you to buy and OC3 line to be a wise guy--and that would definitely be plenty and then some, but very, very expensive (like Microsoft uses).  So to try to get what you need for the cheapest price....you still must determine what will be done with it.

I'm betting on 3 to 6Mb/second as being acceptable.
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babaganooshAuthor Commented:
It'll just be simple web pages - searches on google, etc.  no large file downloads.
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SStoryCommented:
I think 3Mb/sec business DSL would be plenty in that context.  If not you can always upgrade it.
Start with 3 and try it.  Again, you are looking at 280-300Kilobytes/sec / 35.

If all users are hitting a page simultaneously, they'd be getting about 8.5KB/sec, which is twice as fast as normal dial up.  Most people get 4-5KB/SEC on 56K modem.

Again, "it takes forever" is a relative phrase on computers, usually directly proportional to the patience of the user. ;)

HTH,

Shane
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babaganooshAuthor Commented:
we got 1 MB.  we'll see what happens.
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