On Thursday 13 May 2010 13:41:34 Anthony Q. Martin wrote:
> Ok...then this makes perfect sense.  I guess I got confused as before
> I had 1 Gbps adapters on the PCs, but a router with a 10/100 Mbps
> switch. Everything was bottlenecked to the router's speed. But now
> the router is jacked!

Start at the Wan.  If the data rate coming into the modem is 8Mbs (1MBs) 
then the maximum data rate out cannot be greater than that irrespective 
of the network card speed.   So a router with 10/100 Mbs transfer rate 
into Ethernet ports should max out at about 8Mbs.

The data transfer rate between two computers on the same network will be 
as fast as the slowest network cards in the machines.  That is assuming 
that the computer can feed the network cards with data such that the 
card can achieve its maximum transfer rate.

So if two computers have 10/100/1000 network cards in them and they were 
connected directly together, then you should see 800Mbs or so data 
rates.  But if you connect them via a 10/100 switch then the maximum 
data rate will be limited by the speed of the switch.

Also you have to take into account having more than two computers 
connected to the same network.  Since the network maximum speed is also 
limited by the "collision detection mechanism" used to prevent more 
than one device talking at any one time.

Wireless communication speed is limited by the same rules in addition to 
limits imposed by signal strength and other wireless networks in the 
vicinity.

I did have a link to a really good tutorial from "Cisco" that explained 
networks and traffic in much greater detail, but I'm blessed if I can 
find it.

HTH.
-- 
Best Regards:
             Derrick.
             Running Open SuSE 11.1 KDE 3.5.10 Desktop.
             Pontefract Linux Users Group.
             plug @ play-net.co.uk

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