I am digging into some latency jitter issues and think I have stumbled onto an issue with layer2 traffic flooding my link. (Thank you for the ability to do these packet captures)
The amount of ARP traffic I see is hugely different on my two wan links. On one link I am seeing about 1300 ARP (gratuitous and typical query/response mixture) in an 80 second period. On the other WAN, I am only seeing about 16. It looks like on the flooded link, each interface on a 24 port switch is sending out ARP packets at a rate of 1 every 10 seconds. Any ideas as to what might cause this?