Stephen Hemminger [off-list ref] wrote on 05/31/2013 
09:43:10 PM:

I am wondering if this is just a theoretical problem, or does it occur
in real life. My simple tests are not causing ICMP to be delivered to
UDP application (over the VXLAN) but it maybe because of the compare 

scoring

in ICMP, or because of use of multicast versus unicast destinations.

ICMP won't sent errors triggered by multicasts.

                                                        +-DLS