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Beginner

Input errors in ASA 5520

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

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

Everyone's tags (1)
1 ACCEPTED SOLUTION

Accepted Solutions
Highlighted
Rising star

Re: Input errors in ASA 5520

Hi, your input errors are: 128 input errors TOTAL caused by 128 overrun.

According to this documents

 

https://community.cisco.com/t5/network-architecture-documents/overruns-counter-in-the-show-interfaces-command-output-is/ta-p/3131954

 

if the capacity of the interface is exceeded, the frame that is currently being  received is dropped and the overrun counter is incremented.

 

What is the bandwidth used?

Tipically 128 overruns on a total of 267 millions of packets input are not a problem.

 

Regads.

 

 

View solution in original post

2 REPLIES 2
Highlighted
Rising star

Re: Input errors in ASA 5520

Hi, your input errors are: 128 input errors TOTAL caused by 128 overrun.

According to this documents

 

https://community.cisco.com/t5/network-architecture-documents/overruns-counter-in-the-show-interfaces-command-output-is/ta-p/3131954

 

if the capacity of the interface is exceeded, the frame that is currently being  received is dropped and the overrun counter is incremented.

 

What is the bandwidth used?

Tipically 128 overruns on a total of 267 millions of packets input are not a problem.

 

Regads.

 

 

View solution in original post

Highlighted
Beginner

Re: Input errors in ASA 5520

Hi Daniele,

I cleared the interface errors. Need to monitor for some time and check.

 

Regards,
Santosh