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Link Aggregated Group (LAG) or not

Last Modified: 2012-08-13

I am have a Netgear GS724AT switch. I also have several machines with two onboard Marvel Yukon NICs. Both of these NICs are connected to the switch and I want to use link aggregation so each machine has then a 2G uplink.

Everything seems to be working with my setup. When I check the link speed on the NICs then they show 2G. However today I read somehwere that  the switch ports needs to be setup for link aggregation. So I checked the manual for the switch an all  I was able to find in there was a section about Link Aggregated Group (LAG)s. So I set one up and configured two of the switch ports for one of the machines to be members of the LAG. After that I did some speed tests by copying files to and from the machine but I do not see any diffrence between the setup of a LAG and one without.

My question now is ... should I setup such a LAG or not or are these only for links between switches?

I also attached the swicth documentation. LAGs are explained on Page.81
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