I have recently needed to connect a backup server to the network with 4 network cards to increase the backup bandwidth.
The server was Dell PowerEdge R510 Rack Server with 12 hot-swap 2TB SATA hard disks for storage and two internal system disks.
The backbone switches were two ERS5510 in a stack.
The configuration on the Dell server was done through the broadcom management utility (Broadcom Advances control suite 3) and was very easy to construct through the GUI, selecting the team management and creating an LACP team.
The ports that were designated for this trunk were 29,31,33,35 on switch two only, no switch redundancy was needed to start.
I configured the switch through the cli as it was the easiest way to do.
Here is a sample of the cli commands I used:
interface FastEthernet 2/29,2/31,2/33,2/35 lacp key port 2/29,2/31,2/33,2/35 10 lacp mode port 2/29,2/31,2/33,2/35 active lacp aggregation port 2/29,2/31,2/33,2/35 enable exit
for switch redundancy, the configuration should be for example ports 1 and 2 on switch one and port 1 and 2 on switch two (I did not test it yet!):
interface FastEthernet 1/1,1/2,2/1,2/2 lacp key port 1/1,1/2,2/1,2/2 10 lacp mode port 1/1,1/2,2/1,2/2 active lacp aggregation port 1/1,1/2,2/1,2/2 enable exit
