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New Member

Massive overrun input errors on ASA 5510

This is a brand new network, so NO hosts, NOT even internet is connected, just my laptop connected via a console cable, and a ASA5510 is connecting to the new 4510 via ONE staright cable.  And as soon as they two got connected, can ping to each other, massive input errors showed up on  ASA interface.  the 4510 if didn't get errors, but also showed massive packets were sent/recieved.

This is show inter on the ASA 1 sec after I cleared the interface.

ASA01# clear inter e0/1
ASA01# sh inter e0/1
Interface Ethernet0/1 "inside", is up, line protocol is up
  Hardware is i82546GB rev03, BW 1000 Mbps, DLY 10 usec
        Full-Duplex(Full-duplex), 100 Mbps(100 Mbps)
        Input flow control is unsupported, output flow control is off
        MAC address 442b.0359.10b5, MTU 1500
        IP address, subnet mask
        33625 packets input, 5279125 bytes, 0 no buffer
        Received 0 broadcasts, 0 runts, 0 giants
        33633 input errors, 0 CRC, 0 frame, 33633 overrun, 0 ignored, 0 abort
        0 pause input, 0 resume input
        0 L2 decode drops
        67258 packets output, 10559498 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, 0 tx hangs
        input queue (blocks free curr/low): hardware (255/230)
        output queue (blocks free curr/low): hardware (205/193)
  Traffic Statistics for "inside":
        33625 packets input, 4673875 bytes
        67258 packets output, 9348854 bytes
        33625 packets dropped
      1 minute input rate 0 pkts/sec,  0 bytes/sec
      1 minute output rate 0 pkts/sec,  0 bytes/sec
      1 minute drop rate, 0 pkts/sec

So over 33K packets and almost all errored over 1-2 seconds. and no broadcast.

Tried different cables, no luck.  and connected the ASA and the 4510 to my laptop separetedly on the same ports, no issue at all.  monitor the traffic between they two, couldn't see many packets.  and after reboot they were cool, no errors, no massive packets sending, until I sent a ping comand, then they went crazy.


Any clue?


Thanks a lot.


New Member

Come on guys, someone please

Come on guys, someone please help me.  It's really bizarre, only that two devices, a ASA5510 and a 4510, connected, nothing else, and why they two were so busy talk to each other.  When I set my laptop as the switch's IP connecting to the ASA, or set my laptop to the ASA's IP and connected to the switch, and I got no problems at all....