In broadband internet the speed is divided in 8 for actual speed like for example a 2mbps connection 2000 / 8 = 250kb actual
download speed , is it like that when it comes to 10/100 mbps servers too or its 10/100 actual "real" speed?
If you're going to get a dedicated server, I suggest you go with atleast 100mbps.
Whilst this is pretty much a standard service feature these days, I'd point out that in reality many dedicated server customers are unlikely to exceed a few Mbps even peak.
We host some very busy sites with their own dedicated servers which peak under 10Mbps.
Of course it depends what you're doing with the server... certain applications will shift data around a lot more than others, but I don't think at least 100Mbps is genuinely necessary for the majority of customers.
That is just another example of the industry selling "upgrades" to customers when they're not actually required. If you need 100Mbps or even 1Gbps ports on your servers then by all means make sure that's what you purchase, but don't buy it "just because you can" as that's completely the wrong basis for any selection
Agreeing with the above we ran 10Mbs for years with no problems. Nowadays we run all 100's and may go GB on our next box just because the boxes are so much more powerful and fast these days we don't want the ports to be the bottleneck, even if it's just a potential bottleneck.
Since this is in the standard hosting forum and not the dedicated I guess you are comparing hosts and most with a 10 would be fine if they aren't packing their servers full and 100 would be fine unless they were running VERY busy sites.
Another consideration is firewalls. If they use a hardware firewall that can be the bottleneck. Some won't process 100Mbs so a bigger port is useless.
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