After taking a look at one of the switches in our lab, I can confirm that the 10Gb SFP+ ports can be configured into a LAG with each other. Here is an example of how the ports appear in the running config after being configured for link aggregation. From running-config: ! interface tengigabitethernet1/0/1 channel-group 1 mode on ! interface tengigabitethernet1/0/2 channel-group 1 mode on ! interface tengigabitethernet1/0/3 channel-group 2 mode on ! interface tengigabitethernet1/0/4 channel-group 2 mode on ! And here is how they look in the GUI. [IMAGE]
Hey,  I Am interested in purchasing a dell x1052 switch but i have a few questions regarding its functionality. 1. Can i aggregate the sfp+ ports on this switch? basically i want to lacp 2 of the 10gbps sfp+ ports and then connect those ports to my server which has a dual intel 10gbps nic card. I would use a twinax cable so that the server and switch have a 20gbps connection between the two. so is this possible? 2. Can i connect the the 10gbps sfp+ port directly to my workstation which has a 10gbps Intel nic card? Thanks for the help 
Dell X1052 10Gbps sfp+ question