is bridge same as ether...????

i want to ask does bridge connection speed same as ether connection speed..??

Are you referring to a bridge in mikrotik? It will be the speed of the interfaces that you add to the bridge. If you add a couple of 100mb interfaces, it will do 100mb. In the classic sense, a bridge is simply a two port switch. In Router OS, you can have mutlitple interfaces assigned to a bridge (not just two).