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Internet Bandwidth

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by pratheep

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My company's network had 128K leased line connection to our ISP. Browsing Internet was very slow sometimes, so we upgraded to 512K.

After monitoring the bandwidth usage over one month, it is found that maximum bandwidth usage is varying between 60k and 90k(this test was not done, when the connection was 128K)

Even though more than 30 users are browsing Simultaneously; bandwidth is not crossing 90K, even though browsing speed is reasonably good.

Can somebody tell me why the maximum bandwidth is not used? Why it is not even reaching the 1/4 of the bandwidth?

Thanks.

5 replies

by captain krunch

Bandwidth utilization has many variables, even though you have thirty users very few will be communicating with the ISP at any one given time, also the connection at the ISP can tend to be a bottleneck. You tested usage, did you also run a loopbackto test maximum bandwidth available from the ISP?

by pratheep

We have more than 100 users connected to internet but average 30 users will be using inetrnet all the time. I don't know how to run a loopback test to find the maximum bandwidth available.

by garrett1226

You can run a loopback at this extension: http://computingcentral.msn.com/internet/speedtest.asp

You also have to consider the up and down for the connection or if it is a burstable. I have 50 plus active connections through a Full T1 and still receive the same range of values from our monthly usage audit. The 512K is the full pipe allowed, but, I seriously doubt that anyone could flood that long enough for any passive utilization tool to log it.

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