It is due to the reason that when pause frame with broadcast destination address is received, broadcast frame signal which is used by ifInBroadcastPkts counter to identify a received broadcast frame is asserted.
The following patch provides a solution to deassert the broadcast frame signal when the pause frame is received.
Please download the appropriate Quartus® II software version 10.0SP1 patch 1.210 from the following links:
Quartus II software version 10.0SP1 patch 1.210 for Windows
Quartus II software version 10.0SP1 patch 1.210 for Linux
Quartus II software version 10.0SP1 ReadMe for patch 1.210
Caution:
You must either have previously installed the Quartus II 10.0 SP1 software or must install the Quartus II 10.0 SP1 software before installing this patch. Otherwise, the patch will not be installed correctly and the Quartus II software will not run properly.
After you install the patch please regenerate your Triple Speed Ethernet MegaCore® before you compile your design.