12-28-2008 12:43 AM - edited 03-06-2019 03:09 AM
Hi all
I have aFiber Switch C3508-G its one port is showing many input error like below its shown can some one tell me its effacts and how i did sole this problem
Thanks
Kumail
GigabitEthernet0/6 is up, line protocol is up
Hardware is Gigabit Ethernet, address is 0004.4d8e.bb06 (bia 0004.4d8e.bb06)
Description: FDL-Pad15-10.84.15.1
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Auto-duplex (Full), 1000Mb/s, media type is LX
output flow-control is off, input flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:13, output 00:00:01, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 1319000 bits/sec, 428 packets/sec
5 minute output rate 2133000 bits/sec, 415 packets/sec
238612775 packets input, 516870349 bytes, 0 no buffer
Received 29834387 broadcasts, 0 runts, 0 giants, 0 throttles
146122 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 6303243 multicast, 0 pause input
293598870 packets output, 1514343572 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out
--More--
12-28-2008 01:11 AM
Kumail,
I believe you need some kind of reference as to when those error might have occured. If you look at the line - Last clearing of "show interface" counters never it shows that you have never cleared the counters on your router. The command 'clear counters' will reset these and you can start getting a frame of reference as to how many errors and when they may be occurring.
You can also try using the show controllers command for additional info. This document might also help, Troubleshooting Switch Port and Interface Problems http://www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note09186a008015bfd6.shtml#shcount
12-28-2008 03:57 AM
Hi Dear
Thanks for Quick response i also did apply clear counter command before many time many time i also face MAC repetation problem on the same switch i mean one MAC repeat many time Loop of MAC Address and during Loop of MAC Address or Input Error My Switch show time out for 15 second and after this it become rebooot and so it did lose its record and it it is showing clear counter command never applied so please help
Thanks
Kumail
12-28-2008 04:01 AM
Hi Dear
Thanks for Quick response i also did apply clear counter command before many time many time i also face MAC repetation problem on the same switch i mean one MAC repeat many time Loop of MAC Address and during Loop of MAC Address or Input Error My Switch show time out for 15 second and after this it become rebooot and so it did lose its record and it it is showing clear counter command never applied so please help
Thanks
Kumail
12-28-2008 06:28 AM
Can you be a little more specific in describing what you mean by you have a MAC repeat many times. Are there anything in the log files which explains what is happening? How soon after you bring the switch up is it going back down?
12-29-2008 03:06 AM
Hi Dear you are asking MAC Address i mean one MAC address repeat more time mean unlimited if i check sha mac-address table it willl show mac address but one mac will be repeat many time mean 1000 of time not always same mac address it may be different some time same mac also show but many time different mac occure and it show loop become finish if Switch become reboot i check its link its link is also are our clients but how can we stop it so help
Thanks
Kumail
12-28-2008 09:09 AM
You have a total of 238M of imput packets with 146k with errors which equates to less then .06 % errors. This is not a problem. 99.94 of packets are traversing the input queues with no errors. You can try setting the queue strategy to WFQ and see if problem goes away.
See following URL (Table 28) which describes possible cause of input errors
http://www.cisco.com/en/US/docs/ios/12_0/interface/command/reference/irshowin.html#wp1017950
01-13-2009 10:41 PM
If .06% errors is acceptable, then what is the acceptable limit % of input and output errors. Is this documented somewhere.
Thanks.
05-19-2020 06:43 PM
Sure, the occurrence of errors and the input and output difference should not exceed one percent (1.0 %) of traffic on the interface.
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