vmagan
asked on
Cisco input errors increasing
Hi guys,
receiving input errors on int fa 0/0 on a cisco router. I have tried replacing the cable, making sure that both sides were set to full duplex with 100speed and even tried changing from port fa 0/2 on the switch to fa 0/1 and still increasing on input errors.
What can be causing this issue. I believe that this is causing us to lose internet briefly.
Any suggestions please?
Router1841#sho int fa 0/0
FastEthernet0/0 is up, line protocol is up
Hardware is Gt96k FE, address is 001d.7029.c1ba (bia 001d.
Description: to Cisco 3560 Switch
Internet address is 10.34.95.254/24
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 01:37:09
Input queue: 1/75/3/0 (size/max/drops/flushes); Total outp
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 13000 bits/sec, 14 packets/sec
5 minute output rate 8000 bits/sec, 4 packets/sec
80570 packets input, 7795705 bytes
Received 62606 broadcasts, 0 runts, 0 giants, 0 throttl
37 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
21924 packets output, 4244835 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
Switch_3560#sho int fa 0/1
FastEthernet0/1 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 0021.56ab.6c03 (bia 0021.56ab.6c03)
Description: LINK TO ROUTER FA 0/0
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, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:09, output 00:00:01, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 8000 bits/sec, 6 packets/sec
5 minute output rate 13000 bits/sec, 13 packets/sec
23572 packets input, 4700643 bytes, 0 no buffer
Received 113 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 113 multicast, 0 pause input
0 input packets with dribble condition detected
91768 packets output, 9225751 bytes, 0 underruns
0 output errors, 0 collisions, 3 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
Switch_3560#
Switch_3560#sho cdp neighbors
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone
Device ID Local Intrfce Holdtme Capability Platform Port ID
Router_1841 Fas 0/1 172 R S I 1841 Fas 0/0
let me know if you need me to post anything else.
thanks
receiving input errors on int fa 0/0 on a cisco router. I have tried replacing the cable, making sure that both sides were set to full duplex with 100speed and even tried changing from port fa 0/2 on the switch to fa 0/1 and still increasing on input errors.
What can be causing this issue. I believe that this is causing us to lose internet briefly.
Any suggestions please?
Router1841#sho int fa 0/0
FastEthernet0/0 is up, line protocol is up
Hardware is Gt96k FE, address is 001d.7029.c1ba (bia 001d.
Description: to Cisco 3560 Switch
Internet address is 10.34.95.254/24
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 01:37:09
Input queue: 1/75/3/0 (size/max/drops/flushes); Total outp
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 13000 bits/sec, 14 packets/sec
5 minute output rate 8000 bits/sec, 4 packets/sec
80570 packets input, 7795705 bytes
Received 62606 broadcasts, 0 runts, 0 giants, 0 throttl
37 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
21924 packets output, 4244835 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
Switch_3560#sho int fa 0/1
FastEthernet0/1 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 0021.56ab.6c03 (bia 0021.56ab.6c03)
Description: LINK TO ROUTER FA 0/0
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, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:09, output 00:00:01, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 8000 bits/sec, 6 packets/sec
5 minute output rate 13000 bits/sec, 13 packets/sec
23572 packets input, 4700643 bytes, 0 no buffer
Received 113 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 113 multicast, 0 pause input
0 input packets with dribble condition detected
91768 packets output, 9225751 bytes, 0 underruns
0 output errors, 0 collisions, 3 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
Switch_3560#
Switch_3560#sho cdp neighbors
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone
Device ID Local Intrfce Holdtme Capability Platform Port ID
Router_1841 Fas 0/1 172 R S I 1841 Fas 0/0
let me know if you need me to post anything else.
thanks
SOLUTION
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Just trying to rule out a bad port on the router, or something worse on the switch that is affecting all switch ports.
ASKER
Changed to fa 0/1 and input error is now increasing on that port. So we could probably rule out the router ports being faulty.
Router1841#sho int fa 0/1
FastEthernet0/1 is up, line protocol is up
Hardware is Gt96k FE, address is 001d.7029.c1bb (bia 001d.7029.c1bb)
Internet address is 10.34.95.254/24
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 23:24:34
Input queue: 1/75/1/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 41000 bits/sec, 27 packets/sec
5 minute output rate 37000 bits/sec, 18 packets/sec
18324 packets input, 4246053 bytes
Received 6824 broadcasts, 0 runts, 0 giants, 0 throttles
5 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
20458 packets output, 4290376 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
Router1841#
what can we check for on the switch?
Router1841#sho int fa 0/1
FastEthernet0/1 is up, line protocol is up
Hardware is Gt96k FE, address is 001d.7029.c1bb (bia 001d.7029.c1bb)
Internet address is 10.34.95.254/24
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 23:24:34
Input queue: 1/75/1/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 41000 bits/sec, 27 packets/sec
5 minute output rate 37000 bits/sec, 18 packets/sec
18324 packets input, 4246053 bytes
Received 6824 broadcasts, 0 runts, 0 giants, 0 throttles
5 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
20458 packets output, 4290376 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
Router1841#
what can we check for on the switch?
can you post int config on router fa0/1 and switch fa0/1?
ASKER
they are posted above. is there a specific config you are looking for?
i meant the running config.
sh run int fa0/1
sh run int fa0/1
and try to reset the interface on the switch just in case and clear the counter.
config t
int fa0/1
shut
(wait for 5 sec)
no shut
config t
int fa0/1
shut
(wait for 5 sec)
no shut
ASKER
I reset the two different ports late last night when i was on site and still a no go.
here are the requested shw cmds.
Router_1841#sho run int fa 0/1
Building configuration...
Current configuration : 159 bytes
!
interface FastEthernet0/1
ip address 10.34.95.254 255.255.255.0
ip helper-address 10.4.174.1
ip helper-address 10.226.72.194
speed 100
full-duplex
end
Switch3560#sho run int fa 0/1
Building configuration...
Current configuration : 140 bytes
!
interface FastEthernet0/1
description LINK TO ROUTER FA 0/0
switchport mode access
speed 100
duplex full
spanning-tree portfast
end
Switch3560#
here are the requested shw cmds.
Router_1841#sho run int fa 0/1
Building configuration...
Current configuration : 159 bytes
!
interface FastEthernet0/1
ip address 10.34.95.254 255.255.255.0
ip helper-address 10.4.174.1
ip helper-address 10.226.72.194
speed 100
full-duplex
end
Switch3560#sho run int fa 0/1
Building configuration...
Current configuration : 140 bytes
!
interface FastEthernet0/1
description LINK TO ROUTER FA 0/0
switchport mode access
speed 100
duplex full
spanning-tree portfast
end
Switch3560#
Few more questions...
Why do you have iphelper address configured on router fa0/1?
Is CEF enabled on the router?
How is the CPU utilization on the router?
Also add these commands under router's int fa0/1
no ip redirects
no ip unreachables
no ip proxy-arp
Why do you have iphelper address configured on router fa0/1?
Is CEF enabled on the router?
How is the CPU utilization on the router?
Also add these commands under router's int fa0/1
no ip redirects
no ip unreachables
no ip proxy-arp
Also add these :
ip route-cache cef
ip route-cache
ip route-cache cef
ip route-cache
ASKER CERTIFIED SOLUTION
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ASKER
Could that be causing signal to drop?
I will keep you posted.