how to solve high input error on core switch 6509?

[baselzind]

i have high input error on several of my gigabit Ethernet , any idea what is the cause of it and how to solve it? is it  the switch or the connected devices issue related?

[Mark Malone]

Can you post the  show interface x/x output need to see exactly what type of errors they are there are different solutions for different combinations of errors

[baselzind]

Solarwinds which is reporting the interfaces errors also showing vlan getting interface errors , can vlan virtual interfaces get errors???

GigabitEthernet x/XX is up, line protocol is up (connected)
Hardware is C6k 1000Mb 802.3, address is
MTU 1500 bytes, BW 10000 Kbit, DLY 10 usec,
reliability 255/255, txload 37/255, rxload 1/255
Encapsulation ARPA, loopback not set
Half-duplex, 10Mb/s
input flow-control is off, output flow-control is desired
Clock mode is auto
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:23, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 1481000 bits/sec, 599 packets/sec
1910852 packets input, 132207742 bytes, 0 no buffer
Received 3059 broadcasts (0 multicast)
0 runts, 0 giants, 0 throttles
498532 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
90395493101 packets output, 51830581544895 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

[Mark Malone]

Your on a GIG interface but its negotiating to half-duplex  10mb ?

whats connected to it , can you set the port to duplex full and clear counters interface gig x/x?

[pwwiddicombe]

Interesting that the data rate shown is 10 Half - what do you have connected on this port; and what's the configuration of the port and the remote device? 

It also looks like you have lots of input errors, but NO valid input packets.  Is it possible you have "unusual" cabling attached to this port that's looping packets?  This would be bad in any case, but when the port is set up to half duplex, it can't receive while sending.

[baselzind]

for example this port connected to a finger print device , ill post both the port config and interface info:-

switchport

switchport access vlan X

switchport mode access

-----------------------------------------------

Hardware is C6k 1000Mb 802.3, 
MTU 1500 bytes, BW 100000 Kbit, DLY 10 usec,
reliability 253/255, txload 4/255, rxload 1/255
Encapsulation ARPA, loopback not set
Full-duplex, 100Mb/s
input flow-control is off, output flow-control is on
Clock mode is auto
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:11, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 1749000 bits/sec, 680 packets/sec
8439713 packets input, 218877463 bytes, 0 no buffer
Received 14944 broadcasts (8 multicast)
0 runts, 0 giants, 0 throttles
6208795 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
4668337484 packets output, 1487647618036 bytes, 0 underruns
0 output errors, 0 collisions, 4 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

[Mark Malone]

The reliability is down on that connection reliability 253/255

have you tested the cabling to these devices

test cable-diagnostics tdr interface gx/x

or tried swapping in a new one to see if the errors stop

can you post the show controller for that interface

[baselzind]

how do i show the controller for that interface?

[pwwiddicombe]

It looks like the device isn't working, as there is no input packets on it at all...

Can you try connecting it with just a patch cord to the front of the switch rather than possibly going through building cabling?  Also, to verify the port is working, try connecting a normal PC.

Between the two printouts, it looks like the port has gone 10-half to 100-full ?

[augoudi01]

Hi @Mark Malone ,

Please I have the same issue with my TenGigabitEthernet Xenpak. Would you help me identify the problem ? Or is there any command to test the Xenpak Module ?


Here is the output: 

TenGigabitEthernet1/1 is up, line protocol is up (connected)
Hardware is C6k 10000Mb 802.3, address is 0024.145e.e24c (bia 0024.145e.e24c)
Description: To CBC_OCM_DGRE_Cisco
MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec,
reliability 255/255, txload 36/255, rxload 43/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 10Gb/s
input flow-control is off, output flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:52, output 00:00:50, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/836311235/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 1715803000 bits/sec, 2263505 packets/sec
5 minute output rate 1429212000 bits/sec, 1875187 packets/sec
290900755536 packets input, 27291157069310 bytes, 0 no buffer
Received 5583270 broadcasts (2923341 multicasts)
164 runts, 0 giants, 0 throttles
836311235 input errors, 697291134 CRC, 138902718 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
261230544662 packets output, 24615305799861 bytes, 0 underruns
0 output errors, 0 collisions, 5 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

Thanks in advance!