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6500 L3 Forwarding Engine High Total packets dropped by ACL

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Hi,

 

at one of our 6500 i have seen a lot of dropped packet with show mls statistics.

 

sh mls statistics module 5

 

Statistics for Earl in Module 5

 

L2 Forwarding Engine

  Total packets Switched                : 434128043313

 

L3 Forwarding Engine

  Total packets Processed               : 297148396278 @ 9046 pps

  Total packets L3 Switched             : 83236833470 @ 4379 pps

 

  Total Packets Bridged                 : 45065751394

  Total Packets FIB Switched            : 83236833469

  Total Packets ACL Routed              : 0

  Total Packets Netflow Switched        : 1

  Total Mcast Packets Switched/Routed   : 2582204294

  Total ip packets with TOS changed     : 1906200

  Total ip packets with COS changed     : 18318176

  Total non ip packets COS changed      : 0

  Total packets dropped by ACL          : 1188961446

  Total packets dropped by Policing     : 0

  Total packets exceeding CIR           : 0

  Total packets exceeding PIR           : 0

 

Errors

  MAC/IP length inconsistencies         : 0

  Short IP packets received             : 0

  IP header checksum errors             : 0

  TTL failures                          : 649645

  MTU failures                          : 0

 

I need to know why this packets are dropped? 

 

 

1 Reply 1

Hi there ,

 

I would check the ACL configured on this switch . 

 

HTH
Regards,
VS.Suresh.
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