Input errors in ASA 5520

santosh kumar — Fri, 21 Feb 2020 16:14:35 GMT

Hi,

I have ASA 5520 in my office and we are observing interface errors in LAN int gi0/2. How to fix this input errors on the interface.

I enabled flow control but still observing input errors and causing packet drops.

I am not sure what causing drops to my LAN. Need some help ...

Interface GigabitEthernet0/2 "", is up, line protocol is up
Hardware is i82546GB rev03, BW 1000 Mbps, DLY 10 usec
Auto-Duplex(Full-duplex), Auto-Speed(1000 Mbps)
Input flow control is unsupported, output flow control is on
Description: trunk port
Available but not configured via nameif
MAC address d0d0.fd98.fd5c, MTU not set
IP address unassigned
267352772 packets input, 134169475091 bytes, 0 no buffer
Received 1724717 broadcasts, 0 runts, 0 giants
128 input errors, 0 CRC, 0 frame, 128 overrun, 0 ignored, 0 abort
0 pause input, 0 resume input
0 L2 decode drops
224687557 packets output, 145126595555 bytes, 7784 underruns
18711 pause output, 18711 resume output
0 output errors, 0 collisions, 7 interface resets
0 late collisions, 0 deferred
1 input reset drops, 16 output reset drops, 3 tx hangs
input queue (blocks free curr/low): hardware (255/230)
output queue (blocks free curr/low): hardware (255/0)

# sh processes cpu-hog

Process: ssh, NUMHOG: 2, MAXHOG: 3215, LASTHOG: 3215
LASTHOG At: 15:17:42 UTC Sep 12 2018
PC: 0x08e8cf85 (suspend)
Call stack: 0x08e8cf85 0x08e9a834 0x08e9c8c7 0x08e90a78 0x08e90ebe 0x08e913a9 0x08e91426
0x08a85b5c 0x095baf40 0x080eb5fd 0x080e052a 0x080e14cc 0x080689bc

Process: Dispatch Unit, PROC_PC_TOTAL: 3, MAXHOG: 10, LASTHOG: 10
LASTHOG At: 15:29:06 UTC Sep 12 2018
PC: 0x081e1e11 (suspend)

Process: Dispatch Unit, NUMHOG: 3, MAXHOG: 10, LASTHOG: 10
LASTHOG At: 15:29:06 UTC Sep 12 2018
PC: 0x081e1e11 (suspend)
Call stack: 0x081e1e11 0x080689bc

Process: NIC status poll, PROC_PC_TOTAL: 2, MAXHOG: 12, LASTHOG: 12
LASTHOG At: 15:29:52 UTC Sep 12 2018
PC: 0x08b0ee25 (suspend)

Process: NIC status poll, NUMHOG: 2, MAXHOG: 12, LASTHOG: 12
LASTHOG At: 15:29:52 UTC Sep 12 2018
PC: 0x08b0ee25 (suspend)
Call stack: 0x08b0ee25 0x080689bc

Process: ssh_init, PROC_PC_TOTAL: 308, MAXHOG: 3215, LASTHOG: 2
LASTHOG At: 04:07:41 UTC Sep 14 2018
PC: 0x08e8cf85 (suspend)

Process: ssh_init, NUMHOG: 306, MAXHOG: 3, LASTHOG: 2
LASTHOG At: 04:07:41 UTC Sep 14 2018
PC: 0x08e8cf85 (suspend)
Call stack: 0x08e8cf85 0x08e9aa0e 0x08e982ed 0x08e985e3 0x08e99530 0x08e91810 0x080689bc

Process: Dispatch Unit, PROC_PC_TOTAL: 3589, MAXHOG: 6, LASTHOG: 2
LASTHOG At: 04:07:53 UTC Sep 14 2018
PC: 0x081e1fb2 (suspend)

Process: Dispatch Unit, NUMHOG: 3497, MAXHOG: 6, LASTHOG: 2
LASTHOG At: 04:07:53 UTC Sep 14 2018
PC: 0x081e1fb2 (suspend)
Call stack: 0x081e1fb2 0x080689bc

Process: Dispatch Unit, PROC_PC_TOTAL: 2808, MAXHOG: 8, LASTHOG: 3
LASTHOG At: 04:07:53 UTC Sep 14 2018
PC: 0x081e208a (suspend)

Process: Dispatch Unit, NUMHOG: 2716, MAXHOG: 8, LASTHOG: 3
LASTHOG At: 04:07:53 UTC Sep 14 2018
PC: 0x081e208a (suspend)
Call stack: 0x081e208a 0x080689bc

CPU hog threshold (msec): 2.844
Last cleared: 14:02:11 UTC Sep 12 2018

=================

# sh processes cpu-hog