Is it possible to record data from both RX ports at the same time on the Ettus USRP N210?

I have a project where multiple Ettus USRP N210 receivers need to record samples of data from two different sources. One source as a reference signal, the other as a test signal. Instead of retuning one channel to two frequencies, I figure it would be easier to operate two channels, one for each frequency.

I would like to be able to stream 1000 sample bursts from each RF input at a modest sampling rate like 1 MS/s. Stream the data over a dedicated 1Gig Ethernet connection to a central processor. The bursts of data do not have to be sent back over the Ethernet to the central processor at the same time.