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New Member

Input and Output error in switch interface

Hi, I have server connected with the switch-A. I am facing server slow response problem. I have initiated ping (datagram-1000, repeat-1000)of the server IP from other switch. Ping output is 100 % and no drop, but I m getting few Input and Output error on Switch-A. What is the meaning of this? Please find the below log.

Switch-A#sh int gi 1/35

GigabitEthernet1/35 is up, line protocol is up (connected)

Hardware is C6k 1000Mb 802.3, address is 0012.4302.639a (bia 0012.4302.639a)

Description: Link to ANLITSLASV01

MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Full-duplex, 1000Mb/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 never, output hang never

Last clearing of "show interface" counters never

Input queue: 0/2000/292/0 (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 109000 bits/sec, 18 packets/sec

1604701955 packets input, 1998221926091 bytes, 0 no buffer

Received 1475209 broadcasts (1474051 multicasts)

20 runts, 0 giants, 0 throttles

51 input errors, 4 CRC, 0 frame, 241 overrun, 0 ignored

0 watchdog, 0 multicast, 0 pause input

0 input packets with dribble condition detected

544362665 packets output, 126784921530 bytes, 0 underruns

67 output errors, 0 collisions, 2 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


Re: Input and Output error in switch interface

we can note that you have this:

Input queue: 0/2000/292/0 (size/max/drops/flushes); --> 292 drops

Received 1475209 broadcasts

241 overrun

i think this is due to this: input flow-control is off, output flow-control is on

may be we need to have flow-control on for both directions.

can you force it in your NIC and in switch interface?

New Member

Re: Input and Output error in switch interface

Is Input or output Flow-Control effects the communication?

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