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  1. #1
    THE Bastard Sys***** dinowuff's Avatar
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    Urgent Help Needed!

    LOL I always wanted to start a thread with that title...

    Anyhow - I have a big problem. I need a way to explain Bandwidth - Throughput to Morons. I'm looking for pictures or analogies.

    Small words, of course as the audience is comprised of Corporate Executives with attention spans of a small child.


    Where Tr is the 10% to 90% rise time, and K is a constant of proportionality related to the pulse shape, equal to 0.35 for exponential rise, and 0.338 for Gaussian rise.

    Won't work

    T = S / P

    Won't work

    Even this is too much - they won't understand. http://learn-networking.com/network-...and-throughput

    So to sum up. Anyone have any pictures or analogies that correctly explain bandwidth? Please stay away from Latency and the different types of Throughput.

    Thanks
    09:F9:11:02:9D:74:E3:5B8:41:56:C5:63:56:88:C0

  2. #2
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  3. #3
    THE Bastard Sys***** dinowuff's Avatar
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    Thanks Shay - still too detailed.

    In google I tried

    bandwidth throughput
    explain bandwidth
    how does bandwidth work
    bandwidth


    I'm thinking of trying to use an express way and maybe an on ramp as a visual representation, but It's just not right???
    09:F9:11:02:9D:74:E3:5B8:41:56:C5:63:56:88:C0

  4. #4
    Gonzo District BOFH westin's Avatar
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    Talk about hoses.

    Search google for bandwidth hoses. Should be the second link. For some reason, AO won't let me post the actual link here.
    \"Those of us that had been up all night were in no mood for coffee and donuts, we wanted strong drink.\"

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  5. #5
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    Westin is on a good track. The way I've explained bandwidth, it's a kitchen sink.

    What comes out of your faucet is what you can download.
    What goes out the drain is your upload.

    If they can't get that well.... /facepalm

  6. #6
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    Bandwidth is like the kitchen sink.

    What comes out of the faucet is what you can download.
    What goes out the drain is what you can upload.

  7. #7
    THE Bastard Sys***** dinowuff's Avatar
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    Well see I kinda screwed up.

    It was late one day, I was cranky (go figure) and someone asked me why email and the Internet were so slow. I said because some moron saturated the pipe by sending a global email at the end of the day with a 6.5 MB attachment.

    (Of course all 250+ users went to open the attachment at the same time).

    Anyway, the next day everyone wanted to become an expert on bandwidth. Some even had Brother in Laws who were experts and would get the information from them.

    Best I can gather is the overall belief now is that Bandwidth doesn't matter because the Throughput is really the cause for slow networks and that I have no control over Throughput.

    Now because of that insanely stupid statement, I don't get my new 20MB pipe.

    BUT IF I HAD PICTURES! (perhaps drawn in crayon) I could change their minds.
    09:F9:11:02:9D:74:E3:5B8:41:56:C5:63:56:88:C0

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    To summarize this youtube example. throughput is a 4 lane high way inside bandwidth.
    Less bandwidth = less throughput (less lanes for the traffic to travel)

    just have to love those family experts

    http://www.youtube.com/watch?v=VWxGt...eature=related
    Last edited by metzer; July 27th, 2012 at 09:49 PM.

  9. #9
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    Well there is actually a very BIG difference, usually misunderstood as well.
    Throughput is the amount of information (in bits, bytes, packets, etc) that can go or be sent through a connection or conductor in real life situation. Things that can hit it are bad connectors, bad cables, noise, or even collisions and the size of the packets being sent etc. All these things can hit and impact the throughput of the circuit..

    Bandwidth on the other hand, is the amount of data that can be physically transferred through the media of choice. Like 100mbs for Cat 5 cable. Its the scientific calculated unit of what should be possible to send. In real life, that number may well not be reached because the actual throughput is not available.

    They are proportional but really one is theoretical (bandwidth) and the other is real (throughput).

    ISPs always sell the "Bandwidth" but they forget about the throughput because they can't know or even really estimate that number as there are too many variables. That is why most of them say "up to 3Mbs" notice the up to.. the real throughput will be lower and that is real.

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    Quote Originally Posted by AaronMaxwell View Post

    ROFL

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