Reginald said:
<Dan, since I admit that I am not a network pro, I a will not challenge you in a networking debate, but do you see where your posts have very little credibility?
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Since my math was in gross error and was a bad guess, exactly how does the throughput of a lone user on a T1 stand up to the throughput of 50 simultaeous users on an ethernet?>
Reginald, it sounds like you are challenging me. Why the fierce attitude? If you don't understand networking, how do you hope to argue it with me?
It all depends on topology, Reginald. 50 Users on ethernet? The topology would probably be multiple hubs of 8-10 users each connected to a fast ethernet backbone.
Because each user has a 10Mbps cable to their respective hub, their effective bandwidth will always be 10Mbps - broadcast traffic. Broadcast traffic generally consists of a very small number of packets (you can effectively ignore it).
Now, there will be cases of slowdown in this scenerio if multiple parties are attempting to use the same network resource simultaneously (e.g. a file server). Let's say that the file server is directly connected to the fast-ethernet backbone (you wouldn't put a major file-server on one of the ethernet hubs if you could put it on the backbone). That file server would have a 100Mbps pipe to the fast-ethernet hub, and would start to saturate only at the upper limit of that 100Mbps (please note: Even if that line saturates, other lines to the backbone are not neccessarily feeling the same saturation). If 10 users were using the file server at their 10Mbps limits, they would saturate that file server (network efficiency would begin degrading exponentially, not linearly). However, in typical scenerios, out of 50 users you would probably never see 10 users hit a file server at 10Mpbs each. You would probably never even see more than 1 or 2 at a time do this. In fact, this topology would probably never see a network degradation so long as the shared resources were placed intelligently within it.
A lone T1? 1.54Mbps? It is no comparison whatsoever to the topology I just covered. In the above, every one of those 50 users has an effective bandwidth of 10Mbps. The math is more complicated than you think - go take a networking course if you want to understand this stuff a little better.
-Dan |
