c6500#show mls statistics
Statistics for Earl in Module 5
L2 Forwarding Engine Total packets Switched : 167069132363
L3 Forwarding Engine Total packets L3 Switched : 167068616897 @ 328278 pps
Total Packets Bridged : 19461984156 Total Packets FIB Switched : 147452107429 Total Packets ACL Routed : 0 Total Packets Netflow Switched : 0 Total Mcast Packets Switched/Routed : 26251871 Total ip packets with TOS changed : 8256444465 Total ip packets with COS changed : 978 Total non ip packets COS changed : 0 Total packets dropped by ACL : 2049762 Total packets dropped by Policing : 12213434
Errors MAC/IP length inconsistencies : 0 Short IP packets received : 0 IP header checksum errors : 304618 TTL failures : 1914145
Dropping 12M packets in a 5 minute period due to policing and 1.9M due to TTL errors.
There is certainly something wrong and it is not just ARP packets