02-01-2008 07:55 AM - edited 03-03-2019 08:32 PM
Hi,
Is there a threshold (in percentage) for input error on the ethernet interface. The inut error are generally increasing due to overrun. if the percentage is less than .1% in 24 hours is this a real problem? If someone can point me to a documentation that would be great.
thanks,
Arana
02-01-2008 07:58 AM
Is not a problem as the number is still small, anyway is symptom that the router is not working properly.
Which router is that ? What is the interface the packets go out? Which features are enabled ?
02-01-2008 08:15 AM
Hi, this router has a 1M connectivity on the serial and is using CBWFQ. it is a 1721. cpu is less than 20% at all times. The % is in fact much lower than I mentioned in my earlier post.
#show interface fa0
FastEthernet0 is up, line protocol is up
Hardware is PQUICC_FEC, address is 000d.bcc0.3840 (bia 000d.bcc0.3840)
Description: AK_NEt
Internet address is 217.116.2.1/24
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, 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 1w3d
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 109000 bits/sec, 26 packets/sec
30 second output rate 66000 bits/sec, 23 packets/sec
55489952 packets input, 1802339287 bytes
Received 4967488 broadcasts, 0 runts, 0 giants, 0 throttles
95 input errors, 0 CRC, 0 frame, 95 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
49210614 packets output, 577143256 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
02-01-2008 08:03 AM
Hi,
input error specially accumulating very fast is a concern. What device and model this is on?
Cisco states the following about input errors of the overrun variety:
Description: The number of times the receiver hardware was unable to hand received data to a hardware buffer.
Common Cause: The input rate of traffic exceeded the receiver's ability to handle the data.
Regards,
Dandy
02-01-2008 08:21 AM
hi, 1721 is the hardware. could this happen when there is a burst of traffic on the LAN but the output queue on the serial does not have enough buffer. I can also see interface reset on the FE interface at times.
How can I verify this?
Thanks,
Arana
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