Q4. What verification and testing has been done with the core? A4. The XAUI core has been verified using both simulation and hardware testing. The core has been tested at the University of New Hampshire (UNH). For more information, see the Verification and Interoperability Appendix in the XAUI User's Guide (UG150): http://www.xilinx.com/support/documentation/ipcommunicationnetwork_ethernet_xaui.htm