WIll one slow device slow the entire network?

[dany2010]

Hi,

 

Remembering back to one of the lectures that i had i can remember them saying that one slow device would slow the entire network. So if i had a 10/100 device on a 10/100/1000 network then the whole network would run on 10/100.

 

I believe we were on the the topic of error detection.

 

Is this correct? We have got 10/100 switches and getting speeds on 1.**mbps so im guessing its running at 10mbps.

 

Many thanks.

 

p.s. We also have vlan's going over a 1mb connection.

Edited January 18, 2012 by dany2010