Hi Folks,
I have a Cisco Cat3550 router, and 5 subnets, one of which is a rather large 172.16.0.0/16 subnet. Of late, I've seen this backbone router sending out ARP floods on this 65,000+ hosts network, effectively flooding it. Anyone have an idea why? Is this normal, and what purpose would it serve?

Thanks a lot for your input,

_Scim_