Can you tell me the benefit of having a switch aggregate the connections of four other switches. What I mean is, if I have four switches, with a trunk line connecting one of the switches to my local LAN. Then I daisy chain those switches via Gbit trunk lines, what would be the purpose or benefit to having a aggregate switch? Would it just be one more failure point and more overhead? Calling it a aggregate switch is the same as calling it a distribution switch, correct?