We had a Cisco 3750 with a interface that encounter output drop .
We change the cable, we change the interface.
The traffic have the same bandwidth pattern since a long time but now we have output drop.
We try to increase the output hold queue but with the same result.
It's a 100Mbps Full duplex Lease line.
sh int gi 2/0/10
GigabitEthernet2/0/10 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is xxxx.xxxx.xxxx
MTU 1528 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 139/255, rxload 56/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100/1000BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 9w4d, output 00:00:56, output hang never
Last clearing of "show interface" counters 00:03:53
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 25824
Queueing strategy: fifo
Output queue: 0/100 (size/max)
30 second input rate 22006000 bits/sec, 11820 packets/sec
30 second output rate 65047000 bits/sec, 14305 packets/sec
2506589 packets input, 573262613 bytes, 0 no buffer
Received 496 broadcasts (495 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 495 multicast, 0 pause input
0 input packets with dribble condition detected
3096893 packets output, 1729579549 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 PAUSE output
0 output buffer failures, 0 output buffers swapped out
Does someone have a idea ?
What can cause output drops except saturation.
Thanks for your help.