07-07-2008 08:21 AM - edited 03-03-2019 10:37 PM
My company uses NetFlow software to find issues with our network. The software indicated we have thousands of "Receive Errors" each day with our Ethernet 0/0 interface. Does anyone know what may be causing these errors and what steps I can take to prevent these error?
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07-07-2008 12:29 PM
Hi, please configure 100 mbps and full duplex on the switch port also.
This should eliminate the errors that surely are somewhat slowing down traffic.
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07-07-2008 08:24 AM
Please check "show interface eth0/0" and if in doubt post output here.
07-07-2008 08:50 AM
The output of Show interface fastEthernet 0/0 is as follows:
show interface fastEthernet 0/0
FastEthernet0/0 is up, line protocol is up
Hardware is AmdFE, address is 000e.833e.2200 (bia 000e.833e.2200)
Internet address is 10.10.1.6/24
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 never
Input queue: 1/75/1705/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 193000 bits/sec, 179 packets/sec
5 minute output rate 192000 bits/sec, 176 packets/sec
1181645207 packets input, 2438941583 bytes
Received 47201389 broadcasts, 0 runts, 0 giants, 0 throttles
4429681 input errors, 4429681 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
1129333917 packets output, 2498682094 bytes, 0 underruns
0 output errors, 0 collisions, 4 interface resets
0 babbles, 0 late collision, 0 deferred
122 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
07-07-2008 08:56 AM
You monitoring tool is correct, there are too many errors for a normal ethernet link.
Check cabling and work with the manager of the connected device to have the issue resolved.
07-07-2008 11:38 AM
I have a Cisco 3560G switch that is connected to that FastEthernet port. I swapped out the cable that connects the router to the switch - still giving errors. The port on the switch that the router is plugged into is indicating that it is running at half duplex. Is this normal?
Also, Would these errors cause a great slow down on our network? All of the PCs in my company points to this router as their gateway.
07-07-2008 12:29 PM
Hi, please configure 100 mbps and full duplex on the switch port also.
This should eliminate the errors that surely are somewhat slowing down traffic.
As a recognition to those providing answers, please rate useful posts with the scrollbox below!
07-08-2008 05:45 AM
Thank you very much, this worked.
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