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Interface Rate Limit Drops

We are seeing rate limit drops on a new internet ethernet connection. I can't seem to find an explanation that does not have Qos in the reason for the rate limit drops.

Here is what we see on a ASA 5520 running 6.4.

Interface GigabitEthernet1/2 "outside", is up, line protocol is up

  Hardware is VCS7380 rev01, BW 1000 Mbps, DLY 10 usec

        Auto-Duplex(Full-duplex), Auto-Speed(100 Mbps)

        Input flow control is unsupported, output flow control is unsupported

        Media-type configured as RJ45 connector

        Description: Outside connection to TWT port 0/1

        MAC address, MTU 1500

        IP address, subnet mask

        189630202 packets input, 151713633224 bytes, 0 no buffer

        Received 201 broadcasts, 0 runts, 0 giants

        0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

        0 L2 decode drops

        168620541 packets output, 79755781476 bytes, 0 underruns

        0 pause output, 0 resume output

        0 output errors, 0 collisions, 0 interface resets

        0 late collisions, 0 deferred

        0 input reset drops, 0 output reset drops

        406895 rate limit drops

        input queue (blocks free curr/low): hardware (0/0)

        output queue (blocks free curr/low): hardware (0/0)

  Traffic Statistics for "outside":

        189563376 packets input, 148146509320 bytes

        169040114 packets output, 76924197238 bytes

        2782075 packets dropped

      1 minute input rate 1398 pkts/sec,  1258861 bytes/sec

      1 minute output rate 1195 pkts/sec,  418651 bytes/sec

      1 minute drop rate, 8 pkts/sec

      5 minute input rate 2109 pkts/sec,  1888351 bytes/sec

      5 minute output rate 1881 pkts/sec,  1019056 bytes/sec

      5 minute drop rate, 11 pkts/sec

When I do a 'sh run int g1/2' it shows nothing but the actual interface so I think that its not being dropped by us. The interface utilization is low so I dont think thats the issue.

I am sure there is an easy explanation of why there are packets dropping, does anyone have it?



Interface Rate Limit Drops


Couple of items.

  1. This is the SMB Security Community and I wouldn't suggest questions related to an ASA 5520, which is definitely not a SMB device, be asked here.  This would probably be the more appropriate community.
  2. That said, you mentioned you're running 6.4.  Have you looked into upgrading the latest firmware?  I believe the current is 9.x.
    • If not, I would recommend starting there.  I will caution that there were a number of changes in 8.x and 9.x so be sure to read up on release notes prior to the upgrade or consider leveraging a Cisco Partner to assist.
      • BTW, yes we are a Cisco Partner, have vast experience with ASAs, and would be happy to assist.  Feel free to send me a private message if you would like. 

Shawn Eftink

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Shawn Eftink CCNA/CCDA Please rate all helpful posts and mark correct answers to assist others searching for solutions in the community.
Community Member

Interface Rate Limit Drops

Thanks, I moved it.

Also had wrong version... I was looking at asdm version, whoops.



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