This Answer Record contains a fix for the following issues in the 40G/50G Ethernet Subsystem v1.1 in Vivado v2016.2.
Fixed Issues in core and example design:
Installation Instruction :
This patch is for Vivado 2016.2. Please refer to the attached l_ethernet_v1_1_HWblocklockfailurefix_Read_Me file.
These issues will be fixed in the v1.2 release of the core in Vivado 2016.3.