input error

[bruno.trombim]

Hi Guys,

i am working in a company that is facing the problem of mpls slowness networking , i was checking some command and faced the trouble input error in the FastEthernet 0/1, this fastEthernet is configured with 8 sub-interface linked in a switch, one of those sub-interface is our mpls set that are connected in our another site, users are complaining slowness to access this site, so my question is this input error may be the problem cause for this issue, what i could check for isolating it and get the solution.

FastEthernet0/1 is up, line protocol is up
Hardware is Gt96k FE, address is 04fe.7f59.60c1 (bia 04fe.7f59.60c1)
Description: Redelocal
Internet address is 192.168.22.17/24
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 40/255, rxload 40/255
Encapsulation 802.1Q Virtual LAN, Vlan ID 1., loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, 100BaseTX/FX
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 18:29:09
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 6753
Queueing strategy: Class-based queueing
Output queue: 0/1000/0 (size/max total/drops)
5 minute input rate 15766000 bits/sec, 2018 packets/sec
5 minute output rate 15737000 bits/sec, 2002 packets/sec
131588600 packets input, 1219724295 bytes
Received 789755 broadcasts, 0 runts, 0 giants, 1 throttles
3594 input errors, 0 CRC, 0 frame, 0 overrun, 3594 ignored
0 watchdog
0 input packets with dribble condition detected
130715748 packets output, 968445176 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
2216 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out

Best Regards,

Bruno Trombim

[Pawan Raut · Accepted solution]

Hi 

from your output

3594 input errors, 0 CRC, 0 frame, 0 overrun, 3594 ignored

input errors are because of ignored packet. Ignored packets are on the router due to traffic overload or faulty interface.

Kindly follow below KB for more information and rate my post.

[bruno.trombim]

Hi,

so it means my interface may be overloaded with a lot of subinterface and traffic to be handled, it may be solved if a separate some sub-interface in another fisical interface?

Att, 

[Joseph W. Doherty]

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Posting

Don't overlook the overall context, i.e. 3,594 ignored over 131,588,600 packets input, a miniscule percentage.

You may find you might need to do much more analysis to determine the cause.

[bruno.trombim]

Hi,

which tools or first aid should i  use to detect this issue?

best regards,

[Palani Mohan]

Bruno

3500+ ignore count when viewed with 131Million pkts is insignificant. Ignores ARE NOT causing the slow performance problem you are experiencing. Troubleshooting slowness is very complex, especially in a supportforum.

Are you responsible for the network infrastructure OR for the server infrastructure also?

Please describe the slow performance problem in detail. Include where the end-points are located. Describe the user experience when they say slow.