Problem summary:
The Zedboard 
appears to occasionally loose UDP packets across the ethernet interface.
Hardware setup:
2018.3 prebuilt binary (https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/57639129/Zynq+2018.3+Release)
Test setup:
A UDP packet is sent to the Zedboard every 30 seconds, and a small program keeps count of received packets.
After around 25 minutes: 50 packets sent, but only around 28 received.
If I have a ping (ICMP) running in the background to the Zedboard , about 48 packets received, i.e. fewer are lost.
It is almost as if the Ethernet goes into sleep mode after a while if it’s not being actively used.
Questions:
Is this normal behaviour?
Is there a way to switch this “sleep” mode off..?
Could there be another problem I am not aware of?
